Shielded, Molded RF Chokes
Special Features
• Ferrite magnetic shielded for low radiation
• High Q, high reliability
• Injection molded to protect coil
from extreme environment
• Flame retardant coating
• Consistent body dimension
• Color band or numerical marking identification
• Dielectric strength 1000VRMS
• Operating temperature -55 to +105°C
Notes
* Rated current to cause 35°C
maximum temperature rise
** Incremental current to cause 5%
max. inductance drop
1.0
Min.
0.025
0.41 -/+0.02
0.162
-/+0.01
Dimensions: Inches
Part
Number
9250-101
9250-121
9250-151
9250-181
9250-221
9250-271
9250-331
9250-391
9250-471
9250-561
9250-681
9250-821
9250-102
9250-122
9250-152
9250-182
9250-222
9250-272
9250-332
9250-392
9250-472
9250-562
9250-682
9250-822
9250-103
9250-123
9250-153
9250-183
9250-223
9250-273
9250-333
9250-393
9250-473
9250-563
9250-683
9250-823
9250-104
9250-124
9250-154
9250-184
9250-224
9250-274
9250-334
9250-394
9250-474
9250-564
9250-684
9250-824
L (µH)
±10%
0.10
0.12
0.15
0.18
0.22
0.27
0.33
0.39
0.47
0.56
0.68
0.82
1.0
1.2
1.5
1.8
2.2
2.7
3.3
3.9
4.7
5.6
6.8
8.2
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
270
330
390
470
560
680
820
Q
Min.
50
51
51
50
49
47
46
44
44
43
42
40
44
44
44
44
44
44
44
44
44
44
50
50
50
55
45
45
45
45
45
50
50
50
50
50
50
55
55
55
55
55
55
60
60
60
60
60
9250 Series
SRF
Test
Freq. (MHz)
(MHz)
Min.
25
25
25
25
25
25
25
25
25
25
25
25
25
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
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
Also available as RoHS compliant.
250
250
250
250
250
250
250
250
235
210
190
180
140
130
115
105
100
92
85
75
70
65
55
50
46
44
49
45
41
38
34
29
27
25
21
10.5
10.0
9.7
8.5
8.0
7.5
7.0
6.5
6.2
5.7
4.7
4.5
4.2
DCR
Ω
Max.
0.025
0.034
0.037
0.047
0.067
0.11
0.13
0.18
0.25
0.33
0.45
0.59
0.07
0.10
0.12
0.14
0.19
0.28
0.35
0.40
0.55
0.72
1.02
1.32
1.62
2.0
0.80
0.89
0.96
1.19
1.37
1.93
2.11
2.23
2.70
2.44
3.12
3.6
4.1
4.4
5.0
5.8
6.4
7.4
9.5
10.5
11.8
13.0
I, DC*
(mA)
1790
1530
1470
1300
1100
855
780
670
565
490
420
370
1070
895
815
775
650
535
480
450
380
335
280
250
220
200
315
300
290
260
240
205
195
190
170
180
160
150
140
135
125
115
110
105
92
90
80
80
I, Incr.**
(mA)
1790
1530
1470
1300
1100
855
780
670
565
490
420
370
1070
895
815
775
650
535
480
450
380
335
280
250
220
200
250
235
220
200
190
180
175
160
150
140
120
95
90
85
80
70
65
60
58
55
50
45
Continued on next page.
306 E. Alondra Blvd. Gardena, CA 90247-1059 • Phone (310) 515-1720 • FAX (310) 515-1962
wwww.jwmiller.com
19.5
Shielded, Molded RF Chokes
Special Features
• Ferrite magnetic shielded for low radiation
• High Q, high reliability
• Injection molded to protect coil
from extreme environment
• Flame retardant coating
• Consistent body dimension
• Color band or numerical marking identification
• Dielectric strength 1000VRMS
• Operating temperature -55 to +105°C
Notes
* Rated current to cause 35°C
maximum temperature rise
** Incremental current to cause 5%
max. inductance drop
Part
Number
9250-105
9250-125
9250-155
9250-185
9250-225
9250-275
9250-335
9250-395
9250-475
9250-565
9250-685
9250-825
9250-106
9250-126
9250-156
9250-186
9250-226
9250-276
9250-336
9250-396
9250-476
9250-566
9250-686
9250-826
9250-107
L (µH)
±10%
1000
1200
1500
1800
2200
2700
3300
3900
4700
5600
6800
8200
10,000
12,000
15,000
18,000
22,000
27,000
33,000
39,000
47,000
56,000
68,000
82,000
100,000
9250 Series continued
SRF
DCR
Test
Q
Freq. (MHz)
Ω
Min. (MHz)
Min.
Max.
60
45
45
45
45
45
45
45
45
44
40
40
40
30
30
30
27
27
27
27
23
23
23
21
18
0.79
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.079
0.079
0.079
0.079
0.079
0.079
0.079
0.079
0.079
0.079
0.079
0.079
3.8
1.5
1.2
1.0
0.97
0.92
0.84
0.80
0.74
0.73
0.66
0.54
0.47
0.33
0.29
0.28
0.25
0.21
0.19
0.17
0.16
0.14
0.13
0.12
0.11
17.5
22.1
26.5
29.9
33.8
47.3
53.0
73.8
81.6
98.9
111
119
137
143
157
175
274
308
343
376
473
512
580
618
678
Also available as RoHS compliant.
1.0
Min.
0.025
0.41 -/+0.02
0.162
-/+0.01
Dimensions: Inches
19.6
306 E. Alondra Blvd. Gardena, CA 90247-1059 • Phone (310) 515-1720 • FAX (310) 515-1962
wwww.jwmiller.com
I, DC*
(mA)
70
60
55
50
50
40
40
35
31
28
27
26
24
23
22
21
17
16
15
15
13
13
12
11
11
I, Incr.**
(mA)
40
35
33
30
27
25
22
20
19
17
16
15
14
13
12
10
9
8
7.5
6
5.5
5
4
3.5
3
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