2400

2190

1790

1640

1400

1190

980

880

760

640

555

475

405

365

320

815

750

595

550

445

410

325

305

279

219

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

170

160

140

125

115

100

95

90

80

75

68

60

53

50

45

24

22

19

18

16

14

13

12

12

10

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

60

60

60

60

60

60

60

60

60

60

60

60

40

40

40

50

45

60

55

65

65

75

75

75

95

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

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

1

2

3

4

5

6

7

8

9

10

Military Specifications

MS91189 (LT4K); MS75103(LT10K)

Physical Parameters

Inches

Millimeters

Length

0.900 ± 0.010

22.86 ± 0.25

Diameter

0.280 ± 0.010

7.11 ± 0.25

Lead Size

AWG #21 TCW

0.028 ± 0.002

0.711 ± 0.051

Lead Length

1.44 ± 0.12

36.58 ± 3.05

Current Rating at 90°C Ambient

LT4K 35°C Rise

LT10K 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 0.598 W

LT10K 0.256 W

Weight Max. (Grams) 3.9

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

14" reel, 1300 pieces max. For additional packaging

options, see technical section.

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

Parts listed above are QPL/MIL qualified

Optional Tolerances:

J = 5%

H = 3%

G = 2%

F = 1%

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

For further surface finish information,

refer to TECHNICAL section of this catalog.

2890R

2890

Molded Unshielded RF Coils

M

I L I TA RY

A

P P R O V E D

Series

4/2005

PAGE

51

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