• All specifications are subject to change without notice.• Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific

bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.

PQ/LP/EPC/EP series

Ferrite for Switching Power Supplies

Original cores

Issue date: March 2010

(1/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

Ferrite for Switching Power SuppliesOriginal Cores

PQ20/16 to PQ50/50LP23/8 to LP32/13EPC10 to EPC30EP7 to EP20

Ordering Code System

PC44 PQ 26/25 A400 – 2 2MaterialSize of PQ coreAL-value(Z: without air gap)

Number of Lead SlotType

1: Without air gap2: With air gap

(2/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

PQ CORES

∗ AL-value: 1kHz, 0.5mA, 100Ts∗∗ Core loss: 100kHz, 200mT, 25°C/80°C/120°C

DE. PAT. 2,944,583DE. DES. 15,655 EP. PAT. 26,104(DE, FR, GB, NL) GB. PAT. 2,035,706GB. DES. 990,685JP. U. M 1,589,580JP. U. M 1,621,895JP. U. M PUB. 85(60)-3556 1,647,781 JP. U. M PUB.86(61)-5779 1655608 JP. DES. 580,081JP. DES. 649,618KR. U. M 23,487 NL. PAT. 178,826NL. DES. 5,777US. PAT. 4,352,080US. DES. 264,959

A1BøCE

A2

2D

2H

Part No.Dimensions in mmA1 A2 B øC 2D E min. 2H

PC44PQ20/16Z-12PC90PQ20/16Z-12 PC95PQ20/16Z-12

20.5±0.4 14.0±0.4 18.0±0.4 8.8±0.2 16.2±0.2 12.0 10.3±0.3

PC44PQ20/20Z-12 PC90PQ20/20Z-12 PC95PQ20/20Z-12

20.5±0.4 14.0±0.4 18.0±0.4 8.8±0.2 20.2±0.2 12.0 14.3±0.3

PC44PQ26/20Z-12 PC90PQ26/20Z-12 PC95PQ26/20Z-12

26.5±0.45 19.0±0.45 22.5±0.45 12.0±0.2 20.15±0.25 15.5 11.5±0.3

PC44PQ26/25Z-12 PC90PQ26/25Z-12 PC95PQ26/25Z-12

26.5±0.45 19.0±0.45 22.5±0.45 12.0±0.2 24.75±0.25 15.5 16.1±0.3

PC44PQ32/20Z-12 PC90PQ32/20Z-12 PC95PQ32/20Z-12

32.0±0.5 22.0±0.5 27.5±0.5 13.45±0.25 20.55±0.25 19.0 11.5±0.3

Part No.

Effective parameter Electrical characteristicsWeight(g)C1

(mm–1)Ae(mm2)

e(mm)

Ve(mm3)

AL-value (nH/N2)∗ Core loss (W) max.

Without air gap With air gap100kHz, 200mT, 100°C

PC44PQ20/16Z-12PC90PQ20/16Z-12 PC95PQ20/16Z-12

0.605 62 37.4 23103880±25% 3100±25%4480±25%

100±5%250±7%400±10%

0.841.101.14/0.96/1.14∗∗

13

PC44PQ20/20Z-12 PC90PQ20/20Z-12 PC95PQ20/20Z-12

0.738 62 45.4 27903150±25% 2700±25%4000±25%

100±5%160±5%250±7%

1.021.351.38/1.16/1.38∗∗

15

PC44PQ26/20Z-12 PC90PQ26/20Z-12 PC95PQ26/20Z-12

0.391 119 46.3 54906170±25% 5550±25%7470±25%

160±5%315±5%630±10%

1.942.452.62/2.20/2.62∗∗

31

PC44PQ26/25Z-12 PC90PQ26/25Z-12 PC95PQ26/25Z-12

0.472 118 55.5 65305250±25% 4500±25%6520±25%

160±5%315±5%630±10%

2.322.93.14/2.63/3.14∗∗

36

PC44PQ32/20Z-12 PC90PQ32/20Z-12 PC95PQ32/20Z-12

0.326 170 55.5 94207310±25% 6400±25%9120±25%

160±5%315±5%630±7%

2.923.73.94/3.31/3.94∗∗

42

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• All specifications are subject to change without notice.

PQ CORES

∗ AL-value: 1kHz, 0.5mA, 100Ts∗∗ Core loss: 100kHz, 150mT, 100°C∗∗∗ Core loss: 100kHz, 200mT, 25°C/80°C/120°C

DE. PAT. 2,944,583DE. DES. 15,655 EP. PAT. 26,104(DE, FR, GB, NL) GB. PAT. 2,035,706GB. DES. 990,685JP. U. M 1,589,580JP. U. M 1,621,895JP. U. M PUB. 85(60)-3556 1,647,781 JP. U. M PUB.86(61)-5779 1655608 JP. DES. 580,081JP. DES. 649,618KR. U. M 23,487 NL. PAT. 178,826NL. DES. 5,777US. PAT. 4,352,080US. DES. 264,959

A1BøCE

A2

2D

2H

Part No.Dimensions in mmA1 A2 B øC 2D E min. 2H

PC44PQ32/30Z-12PC90PQ32/30Z-12 PC95PQ32/30Z-12

32.0±0.5 22.0±0.5 27.5±0.5 13.45±0.25 30.35±0.25 19.0 21.3±0.3

PC44PQ35/35Z-12 PC90PQ35/35Z-12 PC95PQ35/35Z-12

35.1±0.6 26.0±0.5 32.0±0.5 14.35±0.25 34.75±0.25 23.5 25.0±0.3

PC44PQ40/40Z-12PC90PQ40/40Z-12 PC95PQ40/40Z-12

40.5±0.9 28.0±0.6 37.0±0.6 14.9±0.3 39.75±0.25 28.0 29.5±0.3

PC44PQ50/50Z-12PC90PQ50/50Z-12 PC95PQ50/50Z-12

50.0±0.7 32.0±0.5 44.0±0.7 20.0±0.35 49.95±0.25 31.5 36.1±0.3

Part No.

Effective parameter Electrical characteristicsWeight(g)C1

(mm–1)Ae(mm2)

e(mm)

Ve(mm3)

AL-value (nH/N2)∗ Core loss (W) max.

Without air gap With air gap100kHz, 200mT, 100°C

PC44PQ32/30Z-12PC90PQ32/30Z-12 PC95PQ32/30Z-12

0.464 161 74.6 120005140±25% 4900±25%7000±25%

160±5%315±5%630±7%

3.924.905.30/4.45/5.30∗∗∗

55

PC44PQ35/35Z-12 PC90PQ35/35Z-12 PC95PQ35/35Z-12

0.448 196 87.9 173004860±25% 4700±25%7320±25%

160±5%315±5%630±7%

5.276.67.12/5.98/7.12∗∗∗

73

PC44PQ40/40Z-12PC90PQ40/40Z-12 PC95PQ40/40Z-12

0.508 201 102 205004300±25% 4300±25%6400±25%

160±5%315±5%630±7%

6.568.28.87/7.45/8.87∗∗∗

95

PC44PQ50/50Z-12PC90PQ50/50Z-12 PC95PQ50/50Z-12

0.346 328 113 372006720±25% 6250±25%9700±25%

250±5%400±5%630±5%

6.10∗∗ 8.49.00/7.50/9.00∗∗∗

195

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• All specifications are subject to change without notice.

LP CORES

∗ AL-value: 1kHz, 0.5mA, 100Ts

I

E

2D

2H

A

B

øC

DE. DES. 19,581 EP. PAT. 68,745(DE, FR, GB, NL) FR. DES. 201,586GB. DES. 1,007,200JP. U. M PRO. PUB. 82(57)-201,824JP. DES. 630,754NL. DES. 9,767US. PAT. 4,424,504US. DES. 280,810

Part No.Dimensions in mmA B øC 2D E 2H I

PC44LP23/8Z-12 16.5±0.3 12.5±0.3 5.7±0.1 23.4±0.2 8.7±0.2 17.4±0.2 9.0±0.5

PC44LP22/13Z-12 25.0±0.4 19.0±0.3 8.6±0.2 22.4±0.2 12.9±0.3 16.4±0.3 13.5±0.5

PC44LP32/13Z-12 25.0±0.4 19.0±0.3 8.6±0.2 31.8±0.2 12.9±0.3 24.1±0.3 13.5±0.5

Part No.

Effective parameter Electrical characteristicsWeight(g)C1

(mm–1)Ae(mm2)

e(mm)

Ve(mm3)

AL-value (nH/N2)∗ Core loss (W) max.

Without air gap With air gap100kHz, 200mT, 100°C

PC44LP23/8Z-12 1.41 31.3 44.1 1380 1600±25% 63±5%100±7%250±13%

0.42 9.6

PC44LP22/13Z-12 0.721 67.9 49.0 3330 3310±25% 100±5%200±7%400±10%

1.05 21

PC44LP32/13Z-12 0.909 70.3 64.0 4500 2630±25% 100±5%200±7%400±10%

1.38 30

(5/44)

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• All specifications are subject to change without notice.

EPC CORES

∗ AL-value: 1kHz, 0.5mA, 100Ts∗∗ Core loss: 100kHz, 200mT, 25°C/80°C/120°C

E

Type 1

F

C2

D

H

A

B

C1

US. PAT. 4,760,366EP. PAT. 245,083(DE, FR, GB, NL)KS. UM 50,836 TW. UM 39,406 JP. PENDING

E

Type 2

F

C2

D

H

A

B

C1

Part No. TypeDimensions in mmA B min. C1 C2 D E min. F H

PC44EPC10-Z PC90EPC10-Z PC95EPC10-Z

2 10.2±0.2 7.6 5.0±0.1 1.9±0.1 4.05±0.10 5.3 3.4±0.1 2.65±0.10

PC44EPC13-Z PC90EPC13-ZPC95EPC13-Z

1 13.25±0.3 10.5 5.60±0.15 2.05±0.10 6.6±0.2 8.3 4.60±0.15 4.5±0.2

PC44EPC17-Z PC90EPC17-Z PC95EPC17-Z

1 17.6±0.4 14.3 7.70±0.15 2.8±0.1 8.55±0.20 11.5 6.00±0.15 6.05±0.20

PC44EPC19-Z PC90EPC19-Z PC95EPC19-Z

1 19.1±0.4 15.8 8.50±0.15 2.5±0.1 9.75±0.20 13.1 6.00±0.15 7.25±0.20

Part No.

Effective parameter Electrical characteristicsWeight(g)C1

(mm–1)Ae(mm2)

e(mm)

Ve(mm3)

AL-value (nH/N2)∗ Core loss (W) max.

Without air gap With air gap100kHz, 200mT, 100°C

PC44EPC10-Z PC90EPC10-Z PC95EPC10-Z

1.89 9.39 17.8 1671000±25% 900±25%1040±25%

40±7%63±10%

0.0720.0900.100/0.080/0.100∗∗

1.1

PC44EPC13-Z PC90EPC13-ZPC95EPC13-Z

2.45 12.5 30.6 382870±25%800±25%1060±25%

40±4%63±5%

0.140.170.17/0.15/0.17∗∗

2.1

PC44EPC17-Z PC90EPC17-Z PC95EPC17-Z

1.76 22.8 40.2 9171150±25% 1100±25%1500±25%

80±4%125±5%

0.350.450.45/0.35/0.45∗∗

4.5

PC44EPC19-Z PC90EPC19-Z PC95EPC19-Z

2.03 22.7 46.1 1050940±25% 940±25%1400±25%

80±4%125±5%

0.40.50.5/0.4/0.5∗∗

5.3

(6/44)

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• All specifications are subject to change without notice.

EPC CORES

∗ AL-value: 1kHz, 0.5mA, 100Ts∗∗ Core loss: 100kHz, 200mT, 25°C/80°C/120°C

E

Type 1

F

C2

D

H

A

B

C1

US. PAT. 4,760,366EP. PAT. 245,083(DE, FR, GB, NL)KS. UM 50,836 TW. UM 39,406 JP. PENDING

E

Type 2

F

C2

D

H

A

B

C1

Part No. TypeDimensions in mmA B min. C1 C2 D E min. F H

PC44EPC25-Z PC90EPC25-Z PC95EPC25-Z

1 25.1±0.5 20.65 11.5±0.2 4.0±0.1 12.5±0.2 17.1 8.0±0.2 9.0±0.3

PC44EPC25B-ZPC90EPC25B-ZPC95EPC25B-Z

2 25.1±0.5 20.4 13.8±0.2 2.50±0.15 11.43±0.15 16.5 6.5±0.2 8.78±0.15

PC44EPC27-Z PC90EPC27-Z PC95EPC27-Z

1 27.1±0.5 21.6 13.0±0.3 4.0±0.1 16.0±0.2 18.5 8.0±0.2 12.0±0.3

PC44EPC30-Z PC90EPC30-ZPC95EPC30-Z

1 30.1±0.5 23.6 15.0±0.3 4.0±0.1 17.5±0.2 20.0 8.0±0.2 13.0±0.3

Part No.

Effective parameter Electrical characteristicsWeight(g)C1

(mm–1)Ae(mm2)

e(mm)

Ve(mm3)

AL-value (nH/N2)∗ Core loss (W) max.

Without air gap With air gap100kHz, 200mT, 100°C

PC44EPC25-Z PC90EPC25-Z PC95EPC25-Z

1.40 40.4 56.3 22801560±25% 1400±25% 2200±25%

125±5%200±7%

1.111.41.4/1.2/1.4∗∗

13

PC44EPC25B-ZPC90EPC25B-ZPC95EPC25B-Z

1.39 33.3 46.2 15401560±25%1400±25% 2200±25%

80±5%125±7%

0.650.80.8/0.65/0.8∗∗

11

PC44EPC27-Z PC90EPC27-Z PC95EPC27-Z

1.43 48.6 69.4 33701540±25% 1400±25% 2200±25%

125±5%200±7%

1.562.02.0/1.7/2.0∗∗

18

PC44EPC30-Z PC90EPC30-ZPC95EPC30-Z

1.35 55.6 75.3 41901570±25% 1700±25% 2300±25%

125±5%200±7%

2.032.52.3/2.0/2.3∗∗

23

(7/44)

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• All specifications are subject to change without notice.

EP CORES

∗ AL-value: 1kHz, 0.5mA, 100Ts

2D

2H

ABøC

E

Part No.Dimensions in mmA B øC 2D E 2H

PC40EP7-Z 9.2±0.2 7.4±0.2 3.3±0.1 7.4±0.1 6.35±0.15 5.2±0.2

PC40EP10-Z 11.5±0.3 9.4±0.2 3.3±0.15 10.2±0.2 7.65±0.2 7.4±0.2

PC40EP13-Z 12.5±0.3 10.0±0.3 4.35±0.15 12.85±0.15 8.8±0.2 9.2±0.2

PC40EP17-Z 18.0±0.4 12.0±0.4 5.68±0.18 16.8±0.2 11.0±0.25 11.3±0.3

PC40EP20-Z 24.0±0.5 16.5±0.4 8.75±0.25 21.4±0.2 14.95±0.35 14.3±0.3

Part No.

Effective parameter Electrical characteristicsWeight(g)C1

(mm–1)Ae(mm2)

e(mm)

Ve(mm3)

AL-value (nH/N2)∗ Core loss (W) max.

Without air gap With air gap100kHz, 200mT, 100°C

PC40EP7-Z 1.52 10.3 15.7 162 830 min.63±3%100±4%

0.065 1.4

PC40EP10-Z 1.70 11.3 19.2 217800 min.800±25%

63±3%100±4%

0.08 2.8

PC40EP13-Z 1.24 19.5 24.2 4721170 min. 1100±25%

100±3%160±3%

0.17 5.1

PC40EP17-Z 0.84 33.9 28.5 966 1840 min. 100±5%250±7%

0.33 12

PC40EP20-Z 0.508 78 39.8 3120 3200 min. 100±5%250±7%

1.1 28

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• All specifications are subject to change without notice.

PQ Series PQ20/16 Cores

∗ Coil: ø0.35 2UEW 100Ts

NI limit vs. AL-value for AL-value vs. Air gap length for Temperature rise vs. Total loss forPC44PQ20/16 gapped core (Typical) PC44PQ20/16 core (Typical) PQ20/16 core (Typical)

(Ambient temperature: 25°C)

Part No. AL-value (nH/N2)∗ Core loss (W) max. Calculated output power(forward converter mode)100kHz, 200mT

PC44PQ20/16Z-12 3880±25% (1kHz, 0.5mA) 0.84(100°C) 70W (100kHz)PC90PQ20/16Z-12 3100±25% (1kHz, 0.5mA) 1.10(100°C) 70WPC95PQ20/16Z-12 4480±25% (1kHz, 0.5mA) 1.14/0.96/1.14(25°C/80°C/120°C) 74W

PARAMETERCore factor C1 mm–1 0.605Effective magnetic path length e mm 37.4Effective cross-sectional area Ae mm2 62Effective core volume Ve mm3 2310Cross-sectional center pole area Acp mm2 60.8Minimum cross-sectional center pole area Acp min. mm2 58.1Cross-sectional winding area of core Acw mm2 47.4Weight (approx.) g 13

14.0±0.4

12.0

–0

16.2±0.2

10.3±0.3

ø8.

8±0

.2

18.0

±0.4

20.5

±0.4

Dimensions in mm

Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively. (approx. 400×300×300cm)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=21908×AL–1.0165

NI40%=23359×AL–1.0135

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=103.32×lg –0.7916

0

50

100

Tem

pera

ture

ris

e of

hot

spo

t ∆T

( ˚C

)

Total loss Pm(W)0 54321

Measuring point

Coil

Core

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.35 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

(9/44)

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• All specifications are subject to change without notice.

NI limit vs. AL-value for AL-value vs. Air gap length forPC90PQ20/16 gapped core (Typical) PC90PQ20/16 core (Typical)

NI limit vs. AL-value for AL-value vs. Air gap length forPC95PQ20/16 gapped core (Typical) PC95PQ20/16 core (Typical)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=26651×AL–1.0229

NI40%=28778×AL–1.0244

104

103

102

101A

L-va

lue(

nH/N

2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=100.47×lg –0.7968

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.35 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=24380×AL–1.0256

NI40%=24977×AL–1.0176

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=102.13×lg –0.8199

(10/44)

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• All specifications are subject to change without notice.

PQ Series PQ20/20 Cores

∗ Coil: ø0.35 2UEW 100Ts

NI limit vs. AL-value for AL-value vs. Air gap length for Temperature rise vs. Total loss forPC44PQ20/20 gapped core (Typical) PC44PQ20/20 core (Typical) PQ20/20 core (Typical)

(Ambient temperature: 25°C)

PARAMETERCore factor C1 mm–1 0.738Effective magnetic path length e mm 45.4Effective cross-sectional area Ae mm2 62Effective core volume Ve mm3 2790Cross-sectional center pole area Acp mm2 60.8Minimum cross-sectional center pole area Acp min. mm2 58.1Cross-sectional winding area of core Acw mm2 65.8Weight (approx.) g 15

14.0±0.4

12.0

–0

20.2±0.2

14.3±0.3

ø8.

8±0

.2

18.0

±0.4

20.5

±0.4

Dimensions in mm

Part No. AL-value (nH/N2)∗ Core loss (W) max. Calculated output power(forward converter mode)100kHz, 200mT

PC44PQ20/20Z-12 3150±25% (1kHz, 0.5mA) 1.02(100°C) 92W (100kHz)PC90PQ20/20Z-12 2700±25% (1kHz, 0.5mA) 1.35(100°C) 92WPC95PQ20/20Z-12 4000±25% (1kHz, 0.5mA) 1.38/1.16/1.38(25°C/80°C/120°C) 96W

Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively. (approx. 400×300×300cm)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%20%

NI20%=21870×AL–1.0205

NI40%=21854×AL–1.0038

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=105.12×lg –0.7562

0

50

100

Tem

pera

ture

ris

e of

hot

spo

t ∆T

( ˚C

)

Total loss Pm(W)0 54321

Measuring point

Coil

Core

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.35 2UEW 100Ts • Frequency: 1kHz• Level: 0.5mA

(11/44)

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• All specifications are subject to change without notice.

NI limit vs. AL-value for AL-value vs. Air gap length forPC90PQ20/20 gapped core (Typical) PC90PQ20/20 core (Typical)

NI limit vs. AL-value for AL-value vs. Air gap length forPC95PQ20/20 gapped core (Typical) PC95PQ20/20 core (Typical)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%20%

NI20%=24886×AL–1.0161

NI40%=27406×AL–1.0197

104

103

102

101A

L-va

lue(

nH/N

2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=104.1×lg –0.7366

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.35 2UEW 100Ts • Frequency: 1kHz• Level: 0.5mA

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%20%

NI20%=23708×AL–1.0232

NI40%=25123×AL–1.0193

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=103.22×lg –0.7272

(12/44)

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• All specifications are subject to change without notice.

PQ Series PQ26/20 Cores

∗ Coil: ø0.35 2UEW 100Ts

NI limit vs. AL-value for AL-value vs. Air gap length for Temperature rise vs. Total loss forPC44PQ26/20 gapped core (Typical) PC44PQ26/20 core (Typical) PQ26/20 core (Typical)

(Ambient temperature: 25°C)

Part No. AL-value (nH/N2)∗ Core loss (W) max. Calculated output power(forward converter mode)100kHz, 200mT

PC44PQ26/20Z-12 6170±25% (1kHz, 0.5mA) 1.94(100°C) 170W (100kHz)PC90PQ26/20Z-12 5500±25% (1kHz, 0.5mA) 2.45(100°C) 170WPC95PQ26/20Z-12 7470±25% (1kHz, 0.5mA) 2.62/2.20/2.62(25°C/80°C/120°C) 179W

PARAMETERCore factor C1 mm–1 0.391Effective magnetic path length e mm 46.3Effective cross-sectional area Ae mm2 119Effective core volume Ve mm3 5490Cross-sectional center pole area Acp mm2 113Minimum cross-sectional center pole area Acp min. mm2 109Cross-sectional winding area of core Acw mm2 60.4Weight (approx.) g 31

19.0±0.45

20.15±0.25

11.5±0.3

ø12

.0±0

.2

22.5

±0.4

5

26.5

±0.4

5

15.5

–0

Dimensions in mm

Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively. (approx. 400×300×300cm)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%20%

NI20%=45382×AL–1.0319

NI40%=43742×AL–1.0119

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=174.73×lg –0.8179

0

50

100

Tem

pera

ture

ris

e of

hot

spo

t ∆T

( ˚C

)

Total loss Pm(W)0 54321

Measuring point

Coil

Core

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.35 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

(13/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

NI limit vs. AL-value for AL-value vs. Air gap length forPC90PQ26/20 gapped core (Typical) PC90PQ26/20 core (Typical)

NI limit vs. AL-value for AL-value vs. Air gap length forPC95PQ26/20 gapped core (Typical) PC95PQ26/20 core (Typical)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%20%

NI20%=50825×AL–1.0238

NI40%=52261×AL–1.0163

104

103

102

101A

L-va

lue(

nH/N

2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=173.76×lg –0.8106

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.35 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%20%

NI20%=44454×AL–1.0244

NI40%=44758×AL–1.0137

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=177.04×lg –0.8229

(14/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

PQ Series PQ26/25 Cores

∗ Coil: ø0.35 2UEW 100Ts

NI limit vs. AL-value for AL-value vs. Air gap length for Temperature rise vs. Total loss forPC44PQ26/25 gapped core (Typical) PC44PQ26/25 core (Typical) PQ26/25 core (Typical)

(Ambient temperature: 25°C)

PARAMETERCore factor C1 mm–1 0.472Effective magnetic path length e mm 55.5Effective cross-sectional area Ae mm2 118Effective core volume Ve mm3 6530Cross-sectional center pole area Acp mm2 113Minimum cross-sectional center pole area Acp min. mm2 109Cross-sectional winding area of core Acw mm2 84.5Weight (approx.) g 36

19.0±0.45

24.75±0.25

16.1±0.3

ø12

.0±0

.2

22.5

±0.4

5

26.5

±0.4

5

15.5

–0

Dimensions in mm

Part No. AL-value (nH/N2)∗ Core loss (W) max. Calculated output power(forward converter mode)100kHz, 200mT

PC44PQ26/25Z-12 5250±25% (1kHz, 0.5mA) 2.32(100°C) 195W (100kHz)PC90PQ26/25Z-12 4500±25% (1kHz, 0.5mA) 2.9(100°C) 195WPC95PQ26/25Z-12 6520±25% (1kHz, 0.5mA) 3.14/2.63/3.14(25°C/80°C/120°C) 206W

Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively. (approx. 400×300×300cm)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%20%

NI20%=43742×AL–1.0326

NI40%=42263×AL–1.0142

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=175.65×lg –0.8013

0

50

100

Tem

pera

ture

ris

e of

hot

spo

t ∆T

( ˚C

)

Total loss Pm(W)0 54321

Measuring point

Coil

Core

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.35 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

(15/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

NI limit vs. AL-value for AL-value vs. Air gap length forPC90PQ26/25 gapped core (Typical) PC90PQ26/25 core (Typical)

NI limit vs. AL-value for AL-value vs. Air gap length forPC95PQ26/25 gapped core (Typical) PC95PQ26/25 core (Typical)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%20%

NI20%=51415×AL–1.0321

NI40%=49986×AL–1.0145

104

103

102

101A

L-va

lue(

nH/N

2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=174.71×lg –0.8036

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.35 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%20%

NI20%=45270×AL–1.0258

NI40%=42327×AL–1.0043

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=176.18×lg –0.8154

(16/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

PQ Series PQ32/20 Cores

∗ Coil: ø0.35 2UEW 100Ts

NI limit vs. AL-value for AL-value vs. Air gap length for Temperature rise vs. Total loss forPC44PQ32/20 gapped core (Typical) PC44PQ32/20 core (Typical) PQ32/20 core (Typical)

(Ambient temperature: 25°C)

PARAMETERCore factor C1 mm–1 0.326Effective magnetic path length e mm 55.5Effective cross-sectional area Ae mm2 170Effective core volume Ve mm3 9420Cross-sectional center pole area Acp mm2 142Minimum cross-sectional center pole area Acp min. mm2 137Cross-sectional winding area of core Acw mm2 80.8Weight (approx.) g 42

22.0±0.5

20.55±0.25

11.5±0.3

ø13

.45

±0.2

5

27.5

±0.5

32.0

±0.5

19.0

–0

Dimensions in mm

Part No. AL-value (nH/N2)∗ Core loss (W) max. Calculated output power(forward converter mode)100kHz, 200mT

PC44PQ32/20Z-12 7310±25% (1kHz, 0.5mA) 2.92(100°C) 232W (100kHz)PC90PQ32/20Z-12 6400±25% (1kHz, 0.5mA) 3.7(100°C) 238WPC95PQ32/20Z-12 9120±25% (1kHz, 0.5mA) 3.94/3.31/3.94(25°C/80°C/120°C) 251W

Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively. (approx. 400×300×300cm)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%20%

NI20%=65104×AL–1.0463

NI40%=59766×AL–1.0218

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=216.56×lg –0.8084

0

50

100

Tem

pera

ture

ris

e of

hot

spo

t ∆T

( ˚C

)

Total loss Pm(W)0 54321

Measuring point

Coil

Core

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.35 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

(17/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

NI limit vs. AL-value for AL-value vs. Air gap length forPC90PQ32/20 gapped core (Typical) PC90PQ32/20 core (Typical)

NI limit vs. AL-value for AL-value vs. Air gap length forPC95PQ32/20 gapped core (Typical) PC95PQ32/20 core (Typical)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%20%

NI20%=84392×AL–1.060

NI40%=77874×AL–1.037

104

103

102

101A

L-va

lue(

nH/N

2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=215.03×lg –0.8181

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.35 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%20%

NI20%=67533×AL–1.044

NI40%=64097×AL–1.0256

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=216.79×lg –0.824

(18/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

PQ Series PQ32/30 Cores

∗ Coil: ø0.4 2UEW 100Ts

NI limit vs. AL-value for AL-value vs. Air gap length for Temperature rise vs. Total loss forPC44PQ32/30 gapped core (Typical) PC44PQ32/30 core (Typical) PQ32/30 core (Typical)

(Ambient temperature: 25°C)

PARAMETERCore factor C1 mm–1 0.464Effective magnetic path length e mm 74.6Effective cross-sectional area Ae mm2 161Effective core volume Ve mm3 12000Cross-sectional center pole area Acp mm2 142Minimum cross-sectional center pole area Acp min. mm2 137Cross-sectional winding area of core Acw mm2 149.6Weight (approx.) g 55

22.0±0.5

30.35±0.25

21.3±0.3

ø13

.45

±0.2

5

27.5

±0.5

32.0

±0.5

19.0

–0

Dimensions in mm

Part No. AL-value (nH/N2)∗ Core loss (W) max. Calculated output power(forward converter mode)100kHz, 200mT

PC44PQ32/30Z-12 5140±25% (1kHz, 0.5mA) 3.92(100°C) 331W (100kHz)PC90PQ32/30Z-12 4900±25% (1kHz, 0.5mA) 4.90(100°C) 348WPC95PQ32/30Z-12 7000±25% (1kHz, 0.5mA) 5.30/4.45/5.30(25°C/80°C/120°C) 365W

Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively. (approx. 400×300×300cm)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%20%

NI20%=57432×AL–1.0356

NI40%=50069×AL–1.0015

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=219.46×lg –0.7945

0

50

100

Tem

pera

ture

ris

e of

hot

spo

t ∆T

( ˚C

)

Total loss Pm(W)0 54321

Measuring point

Coil

Core

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.4 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

(19/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

NI limit vs. AL-value for AL-value vs. Air gap length forPC90PQ32/30 gapped core (Typical) PC90PQ32/30 core (Typical)

NI limit vs. AL-value for AL-value vs. Air gap length forPC95PQ32/30 gapped core (Typical) PC95PQ32/30 core (Typical)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%20%

NI20%=70347×AL–1.0411

NI40%=59971×AL–1.0042

104

103

102

101A

L-va

lue(

nH/N

2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=216.35×lg –0.7901

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.4 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%20%

NI20%=56339×AL–1.0191

NI40%=49671×AL–0.9869

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=222.58×lg –0.8109

(20/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

PQ Series PQ35/35 Cores

∗ Coil: ø0.4 2UEW 100Ts

NI limit vs. AL-value for AL-value vs. Air gap length for Temperature rise vs. Total loss forPC44PQ35/35 gapped core (Typical) PC44PQ35/35 core (Typical) PQ35/35 core (Typical)

(Ambient temperature: 25°C)

PARAMETERCore factor C1 mm–1 0.448Effective magnetic path length e mm 87.9Effective cross-sectional area Ae mm2 196Effective core volume Ve mm3 17300Cross-sectional center pole area Acp mm2 162Minimum cross-sectional center pole area Acp min. mm2 156Cross-sectional winding area of core Acw mm2 220.6Weight (approx.) g 73

26.0±0.5

34.75±0.25

25.0±0.3

ø14

.35

±0.2

5

32.0

±0.5

35.1

±0.6

23.5

–0

Dimensions in mm

Part No. AL-value (nH/N2)∗ Core loss (W) max. Calculated output power(forward converter mode)100kHz, 200mT

PC44PQ35/35Z-12 4860±25% (1kHz, 0.5mA) 5.27(100°C) 452W (100kHz)PC90PQ35/35Z-12 4700±25% (1kHz, 0.5mA) 6.6(100°C) 475WPC95PQ35/35Z-12 7320±25% (1kHz, 0.5mA) 7.12/5.98/7.12(25°C/80°C/120°C) 500W

Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively. (approx. 400×300×300cm)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%20%

NI20%=84995×AL–1.0782

NI40%=67575×AL–1.0273

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=247.1×lg –0.7794

0

50

100

Tem

pera

ture

ris

e of

hot

spo

t ∆T

( ˚C

)

Total loss Pm(W)0 54321

Measuring point

Coil

Core

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.4 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

(21/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

NI limit vs. AL-value for AL-value vs. Air gap length forPC90PQ35/35 gapped core (Typical) PC90PQ35/35 core (Typical)

NI limit vs. AL-value for AL-value vs. Air gap length forPC95PQ35/35 gapped core (Typical) PC95PQ35/35 core (Typical)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%20%

NI20%=93242×AL–1.0658

NI40%=77446×AL–1.0227

104

103

102

101A

L-va

lue(

nH/N

2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=244.97×lg –0.7613

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.4 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%20%

NI20%=83940×AL–1.0631

NI40%=69406×AL–1.0211

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=253.75×lg –0.8077

(22/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

PQ Series PQ40/40 Cores

∗ Coil: ø0.4 2UEW 100Ts

NI limit vs. AL-value for AL-value vs. Air gap length for Temperature rise vs. Total loss forPC44PQ40/40 gapped core (Typical) PC44PQ40/40 core (Typical) PQ40/40 core (Typical)

Part No. AL-value (nH/N2)∗ Core loss (W) max. Calculated output power(forward converter mode)100kHz, 200mT

PC44PQ40/40Z-12 4300±25% (1kHz, 0.5mA) 6.56(100°C) 596W (100kHz)PC90PQ40/40Z-12 4300±25% (1kHz, 0.5mA) 8.2(100°C) 626WPC95PQ40/40Z-12 6400±25% (1kHz, 0.5mA) 8.87/7.45/8.87(25°C/80°C/120°C) 650W

PARAMETERCore factor C1 mm–1 0.508Effective magnetic path length e mm 102Effective cross-sectional area Ae mm2 201Effective core volume Ve mm3 20500Cross-sectional center pole area Acp mm2 174Minimum cross-sectional center pole area Acp min. mm2 167Cross-sectional winding area of core Acw mm2 326Weight (approx.) g 95

28.0±0.6

39.75±0.25

29.5±0.3

ø14

.9±0

.3

37.0

±0.6

40.5

±0.9

28.0

–0

Dimensions in mm

Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively. (approx. 400×300×300cm)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=82225×AL–1.0623

NI40%=66453×AL–1.0165

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=259.81×lg –0.7497

0

50

100

Tem

pera

ture

ris

e of

hot

spo

t ∆T

( ˚C

)

Total loss Pm(W)0 105

Measuring point

Coil

Core

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.4 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

(23/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

NI limit vs. AL-value for AL-value vs. Air gap length forPC90PQ40/40 gapped core (Typical) PC90PQ40/40 core (Typical)

NI limit vs. AL-value for AL-value vs. Air gap length forPC95PQ40/40 gapped core (Typical) PC95PQ40/40 core (Typical)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%20%

NI20%=104565 ×AL–1.0745

NI40%=83200×AL–1.0255

104

103

102

101A

L-va

lue(

nH/N

2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=257.32×lg –0.7457

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.4 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%20%

NI20%=90602×AL–1.0644

NI40%=77187×AL–1.0287

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=267.92×lg –0.7779

(24/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

PQ Series PQ50/50 Cores

∗ Coil: ø0.4 2UEW 100Ts

NI limit vs. AL-value for AL-value vs. Air gap length for Temperature rise vs. Total loss forPC44PQ50/50 gapped core (Typical) PC44PQ50/50 core (Typical) PQ50/50 core (Typical)

(Ambient temperature: 25°C)

Part No. AL-value (nH/N2)∗ Core loss (W) max. Calculated output power(forward converter mode)100kHz, 200mT

PC44PQ50/50Z-12 6720±25% (1kHz, 0.5mA) 6.1(100°C) 1045W (100kHz)PC90PQ50/50Z-12 6250±25% (1kHz, 0.5mA) 8.4(100°C) 1300WPC95PQ50/50Z-12 9700±25% (1kHz, 0.5mA) 9.00/7.50/9.00(25°C/80°C/120°C) 1200W

PARAMETERCore factor C1 mm–1 0.346Effective magnetic path length e mm 113Effective cross-sectional area Ae mm2 328Effective core volume Ve mm3 37200Cross-sectional center pole area Acp mm2 314Minimum cross-sectional center pole area Acp min. mm2 303Cross-sectional winding area of core Acw mm2 433Weight (approx.) g 195

32.0±0.6

49.95±0.25

36.1±0.3

ø20

.0±0

.35

44.0

±0.7

50.0

±0.7

31.5

–0

Dimensions in mm

Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively. (approx. 400×300×300cm)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=182419×AL–1.0846

NI40%=140600×AL–1.0322

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=466.44×lg –0.7573

0

50

100

Tem

pera

ture

ris

e of

hot

spo

t ∆T

( ˚C

)

Total loss Pm(W)0 105

Measuring point

Coil

Core

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.4 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

(25/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

NI limit vs. AL-value for AL-value vs. Air gap length forPC90PQ50/50 gapped core (Typical) PC90PQ50/50 core (Typical)

NI limit vs. AL-value for AL-value vs. Air gap length forPC95PQ50/50 gapped core (Typical) PC95PQ50/50 core (Typical)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=219996×AL–1.0926

NI40%=163164×AL–1.0336

104

103

102

101A

L-va

lue(

nH/N

2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=451.89×lg –0.7367

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.4 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=196448×AL–1.0913

NI40%=151299×AL–1.0404

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=471.79×lg –0.789

(26/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

LP Series LP23/8 Cores

∗ Coil: ø0.3 2UEW 100Ts

NI limit vs. AL-value for AL-value vs. Air gap length for Temperature rise vs. Total loss forPC44LP23/8 gapped core (Typical) PC44LP23/8 core (Typical) LP23/8 core (Typical)

(Ambient temperature: 25°C)

PARAMETERCore factor C1 mm–1 1.41Effective magnetic path length e mm 44.1Effective cross-sectional area Ae mm2 31.3Effective core volume Ve mm3 1380Cross-sectional center pole area Acp mm2 25.5Minimum cross-sectional center pole area Acp min. mm2 24.6Cross-sectional winding area of core Acw mm2 59.2Weight (approx.) g 9.6

ø5.7±0.1

9.0±0.5

12.5±0.3

17.4±0.2

23.4±0.2

16.5±0.3

8.7±

0.2

Dimensions in mm

Part No. AL-value (nH/N2)Core loss (W) at 100°C Calculated output power

(forward converter mode)100kHz, 200mT

PC44LP23/8Z-121600±25% (1kHz, 0.5mA)∗

2230 min. (100kHz, 200mT)0.42 max. 50W (100kHz)

Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively. (approx. 400×300×300cm)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=6610.6×AL–0.9615

NI40%=6374.3×AL–0.9417

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=55.009×lg –0.7323

0

50

100

Tem

pera

ture

ris

e of

hot

spo

t ∆T

( ˚C

)

Total loss Pm(W)0 21

Measuring pointCore

Coil

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.3 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

(27/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

LP Series LP22/13 Cores

∗ Coil: ø0.35 2UEW 100Ts

NI limit vs. AL-value for AL-value vs. Air gap length for Temperature rise vs. Total loss forPC44LP22/13 gapped core (Typical) PC44LP22/13 core (Typical) LP22/13 core (Typical)

(Ambient temperature: 25°C)

PARAMETERCore factor C1 mm–1 0.721Effective magnetic path length e mm 49.0Effective cross-sectional area Ae mm2 67.9Effective core volume Ve mm3 3330Cross-sectional center pole area Acp mm2 58.1Minimum cross-sectional center pole area Acp min. mm2 55.4Cross-sectional winding area of core Acw mm2 84.2Weight (approx.) g 21

ø8.6±0.2

13.5±0.5

19.0±0.3

16.4±0.3

22.4±0.2

25.0±0.4

12.9

±0.3

Dimensions in mm

Part No. AL-value (nH/N2)Core loss (W) at 100°C Calculated output power

(forward converter mode)100kHz, 200mT

PC44LP22/13Z-123310±25% (1kHz, 0.5mA)∗

4700 min. (100kHz, 200mT)1.05 max. 121W (100kHz)

Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively. (approx. 400×300×300cm)

Measuring pointCore

Coil

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=21714×AL–1.0266

NI40%=19366×AL–0.9922

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=106.44×lg –0.7568

0

50

100

Tem

pera

ture

ris

e of

hot

spo

t ∆T

( ˚C

)

Total loss Pm(W)0 54321

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.35 2UEW 100Ts • Frequency: 1kHz• Level: 0.5mA

(28/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

LP Series LP32/13 Cores

∗ Coil: ø0.35 2UEW 100Ts

NI limit vs. AL-value for AL-value vs. Air gap length for Temperature rise vs. Total loss forPC44LP32/13 gapped core (Typical) PC44LP32/13core (Typical) LP32/13 core (Typical)

(Ambient temperature: 25°C)

PARAMETERCore factor C1 mm–1 0.909Effective magnetic path length e mm 64.0Effective cross-sectional area Ae mm2 70.3Effective core volume Ve mm3 4500Cross-sectional center pole area Acp mm2 58.1Minimum cross-sectional center pole area Acp min. mm2 55.4Cross-sectional winding area of core Acw mm2 125.3Weight (approx.) g 30ø8.6±0.2

13.5±0.5

19.0±0.3

24.1±0.3

31.8±0.2

25.0±0.4

12.9

±0.3

Dimensions in mm

Part No. AL-value (nH/N2)Core loss (W) at 100°C Calculated output power

(forward converter mode)100kHz, 200mT

PC44LP32/13Z-122630±25% (1kHz, 0.5mA)∗

3730 min. (100kHz, 200mT)1.38 max. 164W (100kHz)

Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively. (approx. 400×300×300cm)

Measuring pointCore

Coil

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=16254×AL–0.9849

NI40%=15407×AL–0.9654

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=106.84×lg –0.732

0

50

100

Tem

pera

ture

ris

e of

hot

spo

t ∆T

( ˚C

)

Total loss Pm(W)0 54321

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.35 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

(29/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

EPC Series EPC10 Cores

∗ Coil: ø0.1 2UEW 100Ts

NI limit vs. AL-value for AL-value vs. Air gap length for Temperature rise vs. Total loss forPC44EPC10 gapped core (Typical) PC44EPC10 core (Typical) EPC10 core (Typical)

(Ambient temperature: 25°C)

PARAMETERCore factor C1 mm–1 1.89Effective magnetic path length e mm 17.8Effective cross-sectional area Ae mm2 9.39Effective core volume Ve mm3 167Cross-sectional center pole area Acp mm2 8.73Minimum cross-sectional area Acp min. mm2 8.13Cross-sectional winding area of core Acw mm2 7.69Weight (approx.) g 1.1

7.6min.

10.2±0.2

5.0±0.1

5.3min.

2.65±0.1

4.05±0.1

3.4

±0.1

1.9

±0.1

Dimensions in mm

Part No. AL-value (nH/N2)∗ Core loss (W) max. Calculated output power(forward converter mode)100kHz, 200mT

PC44EPC10-Z 1000±25% (1kHz, 0.5mA) 0.072(100°C) 5.4W (100kHz)PC90EPC10-Z 900±25% (1kHz, 0.5mA) 0.090(100°C) 5.4WPC95EPC10-Z 1040±25% (1kHz, 0.5mA) 0.100/0.080/0.100(25°C/80°C/120°C) 5.6W

Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively. (approx. 400×300×300cm)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=1465×AL–0.843

NI40%=1453.7×AL–0.8318

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=21.488×lg –0.6799

0

50

100

Tem

pera

ture

ris

e of

hot

spo

t ∆T

( ˚C

)

Total loss Pm(W)0 10.5

Measuring point

Coil

Core

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.1 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

(30/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

NI limit vs. AL-value for AL-value vs. Air gap length forPC90EPC10 gapped core (Typical) PC90EPC10 core (Typical)

NI limit vs. AL-value for AL-value vs. Air gap length forPC95EPC10 gapped core (Typical) PC95EPC10 core (Typical)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=2025.8×AL–0.8751

NI40%=1985.8×AL–0.8531

104

103

102

101A

L-va

lue(

nH/N

2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=19.971×lg –0.7165

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.1 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=1583.5×AL–0.8465

NI40%=1579.3×AL–0.8346

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=21.672×lg –0.6919

(31/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

EPC Series EPC13 Cores

∗ Coil: ø0.2 2UEW 100Ts

NI limit vs. AL-value for AL-value vs. Air gap length for Temperature rise vs. Total loss forPC44EPC13 gapped core (Typical) PC44EPC13 core (Typical) EPC13 core (Typical)

(Ambient temperature: 25°C)

PARAMETERCore factor C1 mm–1 2.45Effective magnetic path length e mm 30.6Effective cross-sectional area Ae mm2 12.5Effective core volume Ve mm3 382Cross-sectional center pole area Acp mm2 10.6Minimum cross-sectional area Acp min. mm2 9.71Cross-sectional winding area of core Acw mm2 23.0Weight (approx.) g 2.1

10.5min.

13.2±0.25

5.6±0.15 4.5±0.2

6.6±0.2

4.6

±0.1

5

2.05

±0.1

Dimensions in mm

8.3min.

Part No. AL-value (nH/N2)∗ Core loss (W) max. Calculated output power(forward converter mode)100kHz, 200mT

PC44EPC13-Z 870±25% (1kHz, 0.5mA) 0.14(100°C) 8W (100kHz)PC90EPC13-Z 800±25% (1kHz, 0.5mA) 0.17(100°C) 8.6WPC95EPC13-Z 1060±25% (1kHz, 0.5mA) 0.17/0.15/0.17(25°C/80°C/120°C) 8.8W

Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively. (approx. 400×300×300cm)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=2476.8×AL–0.9184

NI40%=2617.8×AL–0.9157

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=25.106×lg –0.7268

0

50

100

Tem

pera

ture

ris

e of

hot

spo

t ∆T

( ˚C

)

Total loss Pm(W)0 10.5

Measuring point

Coil

Core

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.2 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

(32/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

NI limit vs. AL-value for AL-value vs. Air gap length forPC90EPC13 gapped core (Typical) PC90EPC13 core (Typical)

NI limit vs. AL-value for AL-value vs. Air gap length forPC95EPC13 gapped core (Typical) PC95EPC13 core (Typical)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=2849.5×AL–0.9041

NI40%=2797.3×AL–0.8848

104

103

102

101A

L-va

lue(

nH/N

2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=25.442×lg –0.7051

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.2 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=2479.7×AL–0.9077

NI40%=2780.1×AL–0.9216

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=27.548×lg –0.6862

(33/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

EPC Series EPC17 Cores

∗ Coil: ø0.2 2UEW 100Ts

NI limit vs. AL-value for AL-value vs. Air gap length for Temperature rise vs. Total loss forPC44EPC17 gapped core (Typical) PC44EPC17 core (Typical) EPC17 core (Typical)

(Ambient temperature: 25°C)

Part No. AL-value (nH/N2)∗ Core loss (W) max. Calculated output power(forward converter mode)100kHz, 200mT

PC44EPC17-Z 1150±25% (1kHz, 0.5mA) 0.35(100°C) 20W (100kHz)PC90EPC17-Z 1100±25% (1kHz, 0.5mA) 0.45(100°C) 20.5WPC95EPC17-Z 1500±25% (1kHz, 0.5mA) 0.45/0.35/0.45(25°C/80°C/120°C) 21.1W

PARAMETERCore factor C1 mm–1 1.76Effective magnetic path length e mm 40.2Effective cross-sectional area Ae mm2 22.8Effective core volume Ve mm3 917Cross-sectional center pole area Acp mm2 19.9Minimum cross-sectional area Acp min. mm2 18.7Cross-sectional winding area of core Acw mm2 41.1Weight (approx.) g 4.5

14.3min.

17.6±0.4

7.7±0.15 6.05±0.2

8.55±0.26.

0±0

.15

2.8

±0.1

Dimensions in mm

11.5min.

Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively. (approx. 400×300×300cm)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=5978.6×AL–0.989

NI40%=5608×AL–0.9598

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=44.814×lg –0.7028

0

50

100

Tem

pera

ture

ris

e of

hot

spo

t ∆T

( ˚C

)

Total loss Pm(W)0 1.5 2.51 20.5

Measuring point

Coil

Core

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.2 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

(34/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

NI limit vs. AL-value for AL-value vs. Air gap length forPC90EPC17 gapped core (Typical) PC90EPC17 core (Typical)

NI limit vs. AL-value for AL-value vs. Air gap length forPC95EPC17 gapped core (Typical) PC95EPC17 core (Typical)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=7327.1×AL–0.9949

NI40%=6514.7×AL–0.9499

104

103

102

101A

L-va

lue(

nH/N

2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=43.211×lg –0.6955

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.2 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=6197.7×AL–0.9857

NI40%=5746.7×AL–0.9528

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=44.074×lg –0.7194

(35/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

EPC Series EPC19 Cores

∗ Coil: ø0.2 2UEW 100Ts

NI limit vs. AL-value for AL-value vs. Air gap length for Temperature rise vs. Total loss forPC44EPC19 gapped core (Typical) PC44EPC19 core (Typical) EPC19 core (Typical)

(Ambient temperature: 25°C)

PARAMETERCore factor C1 mm–1 2.03Effective magnetic path length e mm 46.1Effective cross-sectional area Ae mm2 22.7Effective core volume Ve mm3 1050Cross-sectional center pole area Acp mm2 19.9Minimum cross-sectional area Acp min. mm2 18.7Cross-sectional winding area of core Acw mm2 54.4Weight (approx.) g 5.3

15.8min.

19.1±0.4

8.5±0.15 7.25±0.2

9.75±0.26.

0±0

.15

2.5

±0.1

Dimensions in mm

13.1min.

Part No. AL-value (nH/N2)∗ Core loss (W) max. Calculated output power(forward converter mode)100kHz, 200mT

PC44EPC19-Z 940±25% (1kHz, 0.5mA) 0.4(100°C) 27W (100kHz)PC90EPC19-Z 940±25% (1kHz, 0.5mA) 0.5(100°C) 28WPC95EPC19-Z 1400±25% (1kHz, 0.5mA) 0.5/0.4/0.5(25°C/80°C/120°C) 28.7W

Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively. (approx. 400×300×300cm)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=6344.7×AL–1.0033

NI40%=6050.6×AL–0.9758

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=46.743×lg –0.6721

0

50

100

Tem

pera

ture

ris

e of

hot

spo

t ∆T

( ˚C

)

Total loss Pm(W)0 1.5 2.51 20.5

Measuring point

Coil

Core

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.2 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

(36/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

NI limit vs. AL-value for AL-value vs. Air gap length forPC90EPC19 gapped core (Typical) PC90EPC19 core (Typical)

NI limit vs. AL-value for AL-value vs. Air gap length forPC95EPC19 gapped core (Typical) PC95EPC19 core (Typical)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=7375.4×AL–0.9905

NI40%=6645.5×AL–0.9518

104

103

102

101A

L-va

lue(

nH/N

2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=44.852×lg –0.6667

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.2 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=6491.2×AL–0.9924

NI40%=6280.5×AL–0.9691

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=45.741×lg –0.6919

(37/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

EPC Series EPC25 Cores

∗ Coil: ø0.2 2UEW 100Ts

NI limit vs. AL-value for AL-value vs. Air gap length for Temperature rise vs. Total loss forPC44EPC25 gapped core (Typical) PC44EPC25 core (Typical) EPC25 core (Typical)

(Ambient temperature: 25°C)

Part No. AL-value (nH/N2)∗ Core loss (W) max. Calculated output power(forward converter mode)100kHz, 200mT

PC44EPC25-Z 1560±25% (1kHz, 0.5mA) 1.11(100°C) 63W (100kHz)PC90EPC25-Z 1400±25% (1kHz, 0.5mA) 1.4(100°C) 64WPC95EPC25-Z 2200±25% (1kHz, 0.5mA) 1.4/1.2/1.4(25°C/80°C/120°C) 66.9W

PARAMETERCore factor C1 mm–1 1.40Effective magnetic path length e mm 56.3Effective cross-sectional area Ae mm2 40.4Effective core volume Ve mm3 2280Cross-sectional center pole area Acp mm2 42.6Minimum cross-sectional area Acp min. mm2 40.6Cross-sectional winding area of core Acw mm2 85.5Weight (approx.) g 13

20.65min.

25.1±0.5

11.5±0.2 9.0±0.3

12.5±0.28.

0±0

.2

4.0

±0.1

Dimensions in mm

17.0min.

Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively. (approx. 400×300×300cm)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=15538×AL–1.0389

NI40%=17608×AL–1.0441

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=81.863×lg –0.6902

0

50

100

Tem

pera

ture

ris

e of

hot

spo

t ∆T

( ˚C

)

Total loss Pm(W)0 1.5 2.51 20.5

Measuring point

Coil

Core

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.2 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

(38/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

NI limit vs. AL-value for AL-value vs. Air gap length forPC90EPC25 gapped core (Typical) PC90EPC25 core (Typical)

NI limit vs. AL-value for AL-value vs. Air gap length forPC95EPC25 gapped core (Typical) PC95EPC25 core (Typical)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=21866×AL–1.0791

NI40%=20894×AL–1.048

104

103

102

101A

L-va

lue(

nH/N

2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=81.394×lg –0.69

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.2 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=18325×AL–1.0645

NI40%=19871×AL–1.058

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=82.811×lg –0.7382

(39/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

EPC Series EPC25B Cores

∗ Coil: ø0.23 2UEW 100Ts

NI limit vs. AL-value for AL-value vs. Air gap length for Temperature rise vs. Total loss forPC44EPC25B gapped core (Typical) PC44EPC25B core (Typical) EPC25B core (Typical)

(Ambient temperature: 25°C)

PARAMETERCore factor C1 mm–1 1.39Effective magnetic path length e mm 46.2Effective cross-sectional area Ae mm2 33.3Effective core volume Ve mm3 1540Cross-sectional center pole area Acp mm2 32.4Minimum cross-sectional area Acp min. mm2 30.3Cross-sectional winding area of core Acw mm2 62.1Weight (approx.) g 11

20.4min.

25.1±0.5

13.8±0.28.78±0.1511.43±0.15

6.5

±0.2

2.5

±0.1

5

Dimensions in mm

16.5min.

Part No. AL-value (nH/N2)∗ Core loss (W) max. Calculated output power(forward converter mode)100kHz, 200mT

PC44EPC25B-Z 1560±25% (1kHz, 0.5mA) 0.65(100°C) 45W (100kHz)PC90EPC25B-Z 1400±25% (1kHz, 0.5mA) 0.8(100°C) 46WPC95EPC25B-Z 2200±25% (1kHz, 0.5mA) 0.8/0.65/0.8(25°C/80°C/120°C) 47.6W

Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively. (approx. 400×300×300cm)

Measuring point

Coil

Core

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=13659×AL–1.0567

NI40%=11847×AL–1.0101

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=73.312×lg –0.677

0

50

100

Tem

pera

ture

ris

e of

hot

spo

t ∆T

( ˚C

)

Total loss Pm(W)0 1.5 2.51 20.5

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.23 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

(40/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

NI limit vs. AL-value for AL-value vs. Air gap length forPC90EPC25 gapped core (Typical) PC90EPC25 core (Typical)

NI limit vs. AL-value for AL-value vs. Air gap length forPC95EPC25 gapped core (Typical) PC95EPC25 core (Typical)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=13943×AL–1.0241

NI40%=11860×AL–0.9747

104

103

102

101A

L-va

lue(

nH/N

2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=71.875×lg –0.679

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.23 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=14150×AL–1.0515

NI40%=12387×AL–1.0066

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=73.967×lg –0.7029

(41/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

EPC Series EPC27 Cores

∗ Coil: ø0.3 2UEW 100Ts

NI limit vs. AL-value for AL-value vs. Air gap length for Temperature rise vs. Total loss forPC44EPC27 gapped core (Typical) PC44EPC27 core (Typical) EPC27 core (Typical)

(Ambient temperature: 25°C)

Part No. AL-value (nH/N2)∗ Core loss (W) max. Calculated output power(forward converter mode)100kHz, 200mT

PC44EPC27-Z 1540±25% (1kHz, 0.5mA) 1.56(100°C) 80W (100kHz)PC90EPC27-Z 1400±25% (1kHz, 0.5mA) 2.0(100°C) 80.5WPC95EPC27-Z 2200±25% (1kHz, 0.5mA) 2.0/1.7/2.0(25°C/80°C/120°C) 84.8W

PARAMETERCore factor C1 mm–1 1.43Effective magnetic path length e mm 69.4Effective cross-sectional area Ae mm2 48.6Effective core volume Ve mm3 3370Cross-sectional center pole area Acp mm2 48.6Minimum cross-sectional area Acp min. mm2 46.5Cross-sectional winding area of core Acw mm2 108Weight (approx.) g 18

21.6min.

27.1±0.5

13.0±0.3 12.0±0.3

16.0±0.28.

0±0

.2

4.0

±0.1

Dimensions in mm

18.5min.

Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively. (approx. 400×300×300cm)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=19363×AL–1.0494

NI40%=15983×AL–0.9951

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=91.986×lg –0.671

0

50

100

Tem

pera

ture

ris

e of

hot

spo

t ∆T

( ˚C

)

Total loss Pm(W)0 1.5 2.51 20.5

Measuring point

Coil

Core

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.3 2UEW 100Ts • Frequency: 1kHz• Level: 0.5mA

(42/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

NI limit vs. AL-value for AL-value vs. Air gap length forPC90EPC27 gapped core (Typical) PC90EPC27 core (Typical)

NI limit vs. AL-value for AL-value vs. Air gap length forPC95EPC27 gapped core (Typical) PC95EPC27 core (Typical)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=23038×AL–1.0561

NI40%=20482×AL–1.0146

104

103

102

101A

L-va

lue(

nH/N

2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=89.537×lg –0.6647

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.3 2UEW 100Ts • Frequency: 1kHz• Level: 0.5mA

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=23809×AL–1.0777

NI40%=21455×AL–1.0373

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=92.324×lg –0.7047

(43/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

EPC Series EPC30 Cores

∗ Coil: ø0.3 2UEW 100Ts

NI limit vs. AL-value for AL-value vs. Air gap length for Temperature rise vs. Total loss forPC44EPC30 gapped core (Typical) PC44EPC30 core (Typical) EPC30 core (Typical)

(Ambient temperature: 25°C)

Part No. AL-value (nH/N2)∗ Core loss (W) max. Calculated output power(forward converter mode)100kHz, 200mT

PC44EPC30-Z 1570±25% (1kHz, 0.5mA) 2.03(100°C) 85W (100kHz)PC90EPC30-Z 1700±25% (1kHz, 0.5mA) 2.5(100°C) 85.5WPC95EPC30-Z 2300±25% (1kHz, 0.5mA) 2.3/2.0/2.3(25°C/80°C/120°C) 90.1W

PARAMETERCore factor C1 mm–1 1.35Effective magnetic path length e mm 75.3Effective cross-sectional area Ae mm2 55.6Effective core volume Ve mm3 4190Cross-sectional center pole area Acp mm2 56.6Minimum cross-sectional area Acp min. mm2 54.3Cross-sectional winding area of core Acw mm2 117Weight (approx.) g 23

23.6min.

30.1±0.5

15.0±0.3 13.0±0.3

17.5±0.2

8.0

±0.2

4.0

±0.1

Dimensions in mm

20.0min.

Note: The temperature rise is measured in the room whose temperature and humidity are fixed to 25°C and 45(%)RH. respectively. (approx. 400×300×300cm)

Measuring point

Coil

Core

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=20515×AL–1.041

NI40%=15959×AL–0.975

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=110.23×lg –0.6951

0

50

100

Tem

pera

ture

ris

e of

hot

spo

t ∆T

( ˚C

)

Total loss Pm(W)0 1.5 2.51 20.5

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.3 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

(44/44)

002-03 / 20100305 / e143.fm

• All specifications are subject to change without notice.

NI limit vs. AL-value for AL-value vs. Air gap length forPC90EPC30 gapped core (Typical) PC90EPC30 core (Typical)

NI limit vs. AL-value for AL-value vs. Air gap length forPC95EPC30 gapped core (Typical) PC95EPC30 core (Typical)

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=25454×AL–1.043

NI40%=20459×AL–0.9853

104

103

102

101A

L-va

lue(

nH/N

2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=109.57×lg –0.6668

Note: NI limit shows the point where the exciting current is 20% and 40% away from its extended linear part.

Measuring conditions • Coil: ø0.3 2UEW 100Ts• Frequency: 1kHz• Level: 0.5mA

102

103

NI l

imit(

AT

)

AL-value(nH/N2)103 104102101101

Temperature: 100˚C

40%

20%

NI20%=21871×AL–1.0423

NI40%=16936×AL–0.9765

104

103

102

101

AL-

valu

e(nH

/N2 )

Air gap length(mm)0.01 0.10 1 10

Center pole gap

Temperature: 25˚C

AL=114.4×lg –0.7075