1944R & 1945R
1944 & 1945
SERIES
Molded Unshielded RFꢀCoils
MS21389 (Reference) – SERIES 1944 PHENOLIC CORE
Actual Size
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% 25
20% 25
20% 25
20% 25
20% 25
20% 25
20% 25
20% 25
20% 25
20% 25
20% 25
20% 25
20% 25
50
50
50
50
50
45
40
40
25
25
25
25
20
20
15
15
15
75 400
75 400
75 400
65 400
65 400
65 376
65 352
60 320
55 288
50 264
50 240
45 220
45 200
45 176
45 160
45 144
45 132
0.020 4000
0.025 3500
0.030 3000
0.030 3000
0.030 3000
0.040 2700
0.045 2500
0.070 2000
0.070 2000
0.100 1700
0.120 1500
0.160 1300
0.230 1100
0.280 1000
0.380 850
0.540 720
0.750 610
-01M
-02M
-03M
-04M
-05M
-06M
-07M
-08M
-09M
-10M
-11M
-12M
-13M
-14M
-15K
-16K
-17K
20%
10%
10%
10%
7.9
7.9
7.9
7.9
MS21390 (Reference) – SERIES 1945 IRON CORE
1
2
3
4
5
6
7
8
9
2.70
3.30
3.90
4.70
5.60
6.80
8.20
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%
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
10
10
10
7.9
7.9
7.9
7.9
5.0
5.0
2.5
2.5
2.5
2.5
2.5
2.5
2.5
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
88
80
76
72
64
56
52
48
0.11 1600
0.14 1400
0.19 1200
0.28 1000
-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
Test Methods MIL-PRF-15305 test methods, only.
MS21389-01 to MS21389-17, reference - 1944 Series
MS21390-01 to MS21390-39, reference - 1945 Series
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
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
10.0
Physical Parameters
12.0
15.0
18.0
22.0
27.0
33.0
39.0
47.0
56.0
68.0
82.0
42.4
37.6
34.4
32.0
28.8
25.6
20.8
17.6
15.2
12.8
10.4
8.00 5.78
5.76 5.00
5.36 5.80
5.04 6.60
4.72 7.40
4.48 8.00
4.24 8.60
4.00 8.90
3.76 9.60
3.60 9.90
3.44 10.4
3.20 10.9
3.04 11.6
2.88 11.8
2.80 12.5
2.72 13.5
2.64 14.0
2.48 15.0
2.40 15.5
2.24 16.5
10
11
12
13
14
15
16
17
18
19
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
Inches
Millimeters
Length
Diameter
Lead Size
0.420 to 0.447
0.168 to 0.193
10.67 to 11.35
4.27 to 4.90
AWG #22 TCW 0.023 to 0.027
Lead Length 1.30 Min.
0.584 to 0.686
33.02 Min.
2.5
2.5
2.5
2.5
2.5
2.5
2.5
1.5
Current Rating at 90°C Ambient 35°C Rise
Operating Temperature –55°C to +125°C
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
Maximum Power Dissipation at 90°C
Series 1944: 0.385 W
Series 1945: 0.330 W
Marking DELEVAN; inductance with units and tolerance;
date code (YYWWL). Note: An R before the date code
indicates a RoHS component.
Example: 1944-14M
Front:
Reverse:
DELEVAN
1.2uH 20%
0704A
Packaging Tape & reel: 12" reel, 2500 pieces max.; 14"
reel, 3000 pieces max.
5%
5%
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 surface finish information, refer to www.delevanfinishes.com
.
270 Quaker Rd., East Aurora NY 14052 • Phone 716-652-3600 • Fax 716-652-4814 • E-mail: apisales@delevan com • www.delevan.com
1/2009
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