Actual Size

SERIES 2890R2890

Molded Unshielded RF Coils

SRF MINIMUM (MHz)

DASH NUMBER*

INDUCTANCE (µH) ±10%

Q MINIMUM

TEST FREQUENCY (MHz)

DC RESISTANCE

MAXIMUM (OHMS)

CURRENT RATING

MAXIMUM (mA)

MIL DASH #

Military Specifications

MS91189 (LT4K); MS75103(LT10K)

Physical Parameters

Inches MillimetersLength 0.900 ± 0.010 22.86 ± 0.25Diameter 0.280 ± 0.010 7.11 ± 0.25Lead SizeAWG #21 TCW 0.028 ± 0.002 0.711 ± 0.051Lead Length 1.44 ± 0.12 36.58 ± 3.05

Current Rating at 90°C Ambient

LT4K 35°C RiseLT10K 15°C Rise

Operating Temperature Range

LT4K –55°C to +125°CLT10K –55°C to +105°C

Maximum Power Dissipation at 90°C

LT4K 0.598 WLT10K 0.256 W

Weight Max. (Grams) 3.9

Marking DELEVAN; inductance with units and tolerance;date code (YYWWL). Note: An R before the date codeindicates a RoHS component.

Example: 2890R-16F

Front: Reverse: DELEVAN 6.8uH±1% 6.8uH±1% R 0518B

Packaging Tape & reel: 12" reel, 800 pieces max.; 14"reel, 1300 pieces max.

Made in the U.S.A.

MS91189– SERIES 2890 PHENOLIC CORE (LT4K)

-00K -02K -03K -04K -06K -08K -10K -12K -14K -16K -18K -20K -22K -24K -26K

MS75103– SERIES 2890 IRON CORE (LT10K)

-28K -30K -32K -34K -36K -38K -39K -40K -42K -44K

RF Inductors

270 Quaker Rd., East Aurora NY 14052 • Phone 716-652-3600 • Fax 716-652-4814 • E-mail: apisales@delevan.com • www.delevan.com

MIL I TARY

AP P R O V E D

240021901790164014001190980880760640555475405365320

815750595550445410325305279219

0.075 0.090 0.135 0.160 0.220 0.305 0.450 0.560 0.745 1.05 1.40 1.90 2.65 3.25 4.15

0.295 0.35 0.55 0.65 1.00 1.15 1.85 2.10 2.50 4.10

170160140125115100959080756860535045

24221918161413121210

7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 7.9 2.5 2.5 2.5

2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 0.79

606060606060606060606060404040

50456055656575757595

1.2 1.5 1.8 2.2 2.7 3.3 3.9 4.7 5.6 6.8 8.2 10.0 12.0 15.0 18.0

22.0 27.0 33.0 39.0 47.0 56.0 68.0 82.0 100.0 120.0

141516171819202122232425262728

12345678910

Optional Tolerances: J = 5% H = 3% G = 2% F = 1%

*Complete part # must include series # PLUS the dash #

For surface finish information, refer to www.delevanfinishes.com

Parts listed above are QPL/MIL qualified

1/2009

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