Actual Size

MIL DASH #

SRF MINIMUM (MHz)

DASH NUMBER*

INDUCTANCE (µH)

Q MINIMUM

TEST FREQUENCY (MHz)

DC RESISTANCE

MAXIMUM (OHMS)

CURRENT RATING

MAXIMUM (mA)

TOLERANCE

SERIES 1840R1840

Molded Unshielded RF Coils

Military Specifications

MS75008 (LT4K); MS75101 (LT10K)

Physical Parameters Inches MillimetersLength 0.437 ± 0.010 11.10 ± 0.25Diameter 0.187 ± 0.010 4.75 ± 0.25Lead Size AWG #22 TCW 0.025 ± 0.002 0.635 ± 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°C;LT10K –55°C to +105°C

Maximum Power Dissipation at 90°C

LT4K 0.385 WLT10K 0.165 W

Weight Max. (Grams) 0.95

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

Example: 1840R-18K

Front: Reverse: DELEVAN 3.3uH±10% 3.3uH±10% R 0910A

Packaging Tape & reel: 12" reel, 2500 pieces max.; 14"reel, 3000 pieces max.

g No MS # Issued

Made in the U.S.A.

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

MS75008– SERIES 1840 PHENOLIC CORE (LT4K)

-00M -02M -04M -05M -06M -07K -08K -09K -10K -11K -12K -13K -14K -16K

MS75101– SERIES 1840 IRON CORE (LT10K)

-18K -20K -22K -24K -26K -28K -30K -32K -34K -35K -36K -38K

305028202360186018601670152012401050835755610555525

1020900775670580560455385324265251214

0.030 0.035 0.050 0.080 0.080 0.100 0.120 0.180 0.250 0.400 0.485 0.740 0.900 1.100

0.120 0.155 0.210 0.280 0.375 0.400 0.600 0.850 1.200 1.800 2.000 2.750

510415350300300270250220200180170150140120

706560505048423630302422

25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 25.0 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

5555555555555555553535353535

353535353535355055606065

± 20%± 20%± 20%± 20%± 20%± 10%± 10%± 10%± 10%± 10%± 10%± 10%± 10%± 10%

± 10%± 10%± 10%± 10%± 10%± 10%± 10%± 10%± 10%± 10%± 10%± 10%

0.15 0.22 0.33 0.39 0.47 0.56 0.68 0.82 1.00 1.20 1.50 1.80 2.20 2.70

3.30 3.90 4.70 5.60 6.80 8.20 10.0 12.0 15.0 18.0 22.0 27.0

212223g24252627282930313233

123456789101112

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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