Series
RF INDUCTORS
1944R&1945R
1944&1945
MS21389 (reference) – SERIES 1944 PHENOLIC CORE
-01M
-02M
-03M
-04M
-05M
-06M
-07M
-08M
-09M
-10M
-11M
-12M
-13M
-14M
-15K
-16K
-17K
-01K
-02K
-03K
-04K
-05K
-06K
-07K
-08K
-09K
-10K
-11K
-12K
-13J
-14J
-15J
-16J
-17J
-18J
-19J
-20J
-21J
-22J
-23J
-24J
-25J
-26J
-27J
-28J
-29J
-30J
-31J
-32J
-33J
-34J
-35J
-36J
-37J
-38J
-39J
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
0.10
0.12
0.15
0.18
0.22
0.27
0.33
0.39
0.47
0.56
0.68
0.82
1.00
1.20
1.50
1.80
2.20
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 20%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
± 5%
25
25
25
25
25
25
25
25
25
25
25
25
25
7.9
7.9
7.9
7.9
50
50
50
50
50
45
40
40
25
25
25
25
20
20
15
15
15
75
75
75
65
65
65
65
60
55
50
50
45
45
45
45
45
45
55
55
60
70
65
65
60
60
65
80
75
75
75
85
80
80
75
75
75
75
65
65
65
65
65
65
65
65
65
65
65
65
60
60
60
60
60
60
60
400
400
400
400
400
376
352
320
288
264
240
220
200
176
160
144
132
88
80
76
72
64
56
52
48
42.4
37.6
34.4
32.0
28.8
25.6
20.8
17.6
15.2
12.8
10.4
8.00
5.76
5.36
5.04
4.72
4.48
4.24
4.00
3.76
3.60
3.44
3.20
3.04
2.88
2.80
2.72
2.64
2.48
2.40
2.24
0.020
0.025
0.030
0.030
0.030
0.040
0.045
0.070
0.070
0.100
0.120
0.160
0.230
0.280
0.380
0.540
0.750
0.11
0.14
0.19
0.28
0.34
0.43
0.56
0.67
0.81
1.15
1.40
1.60
2.30
3.30
3.32
3.70
3.99
4.48
5.07
5.78
5.00
5.80
6.60
7.40
8.00
8.60
8.90
9.60
9.90
10.4
10.9
11.6
11.8
12.5
13.5
14.0
15.0
15.5
16.5
4000
3500
3000
3000
3000
2700
2500
2000
2000
1700
1500
1300
1100
1000
850
720
610
1600
1400
1200
1000
900
800
720
650
590
500
460
430
360
300
290
275
265
250
235
220
170
164
158
155
150
145
142
137
135
131
128
124
123
120
115
113
110
107
104
DA
SH
Molded Unshielded RF Coils
MS21390 (reference) – SERIES 1945 IRON CORE
1
2.70
2
3.30
3
3.90
4
4.70
5
5.60
6
6.80
7
8.20
8
10.0
9
12.0
10
15.0
11
18.0
12
22.0
13
27.0
14
33.0
15
39.0
16
47.0
17
56.0
18
68.0
19
82.0
20 100
21 120
22 150
23 180
24 220
25 270
26 300
27 330
28 360
29 390
30 430
31 470
32 510
33 560
34 620
35 680
36 750
37 820
38 910
39 1000
7.9 10
7.9 10
7.9 10
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
5.0
2.5
5.0
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
1.5
0.79 0.79
0.79 0.79
0.79 0.79
0.79 0.79
0.79 0.79
0.79 0.79
0.79 0.79
0.79 0.79
0.79 0.79
0.79 0.79
0.79 0.79
0.79 0.79
0.79 0.79
0.79 0.79
0.79 0.79
0.79 0.79
0.79 0.79
0.79 0.79
0.79 0.79
Test Methods
MIL-PRF-15305 test methods, only.
MS21389-01 to MS21389-17, reference - 1944
Series
MS21390-01 to MS21390-39, reference - 1945
Series
Physical Parameters
Inches
Length
0.420 to 0.447
Diameter
0.168 to 0.193
Lead Size
AWG #22 TCW 0.023 to 0.027
Lead Length
1.30 Min.
Millimeters
10.67 to 11.35
4.27 to 4.90
0.584 to 0.686
33.02 Min.
Current Rating at 90°C Ambient
35°C Rise
Operating Temperature
–55°C to +125°C
Maximum Power Dissipation at 90°C
Series 1944: 0.385 W
Series 1945: 0.330 W
Packaging
Tape & reel: 12" reel, 2500 pieces max.;
14" reel, 3000 pieces max. For additional packaging
options, see technical section.
Made in the U.S.A.
Optional Tolerances: K = 10% 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.
PAGE
48
www
.
delevan
.
com
E-mail: apisales@delevan.com
270 Quaker Rd., East Aurora NY 14052 • Phone 716-652-3600 • Fax 716-652-4814
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4/2005
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