Shielded, Molded Chokes
Model 9250 is currently available,
although not recommended for new
designs.
Model 9250A
is preferred.
9250 Series
SRF
Test
(MHz)
Freq.
Min.
(MHz)
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
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
Part
Number
9250-101-RC
9250-121-RC
9250-151-RC
9250-181-RC
9250-221-RC
9250-271-RC
9250-331-RC
9250-391-RC
9250-471-RC
9250-561-RC
9250-681-RC
9250-821-RC
9250-102-RC
9250-122-RC
9250-152-RC
9250-182-RC
9250-222-RC
9250-272-RC
9250-332-RC
9250-392-RC
9250-472-RC
9250-562-RC
9250-682-RC
9250-822-RC
9250-103-RC
9250-123-RC
9250-153-RC
9250-183-RC
9250-223-RC
9250-273-RC
9250-333-RC
9250-393-RC
9250-473-RC
9250-563-RC
9250-683-RC
9250-823-RC
9250-104-RC
9250-124-RC
9250-154-RC
9250-184-RC
9250-224-RC
9250-274-RC
9250-334-RC
9250-394-RC
9250-474-RC
9250-564-RC
9250-684-RC
9250-824-RC
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
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
Special Features
• Ferrite magnetic shielded for low radiation
• High Q, high reliability
• Injection molded to protect coil
from extreme environments
• Flame retardant coating
• Consistent body dimension
• Color band or numerical marking identification
• Dielectric strength 1000 Vrms
• Operating temperature -55 to +105 °C
Notes
* Rated current to cause 35 °C
max. temperature rise
** Incremental current to cause 5 %
max. inductance drop
Bourns recommends using the 9250A Series
as a replacement for the 9250 Series
1.0
Min.
0.41 -/+0.02
0.025
0.162
-/+0.01
Dimensions: Inches
Only available as RoHS compliant.
Continued on next page.
REV. 02/07
Tel. (877) 426-8767 • Fax (951) 781-5006
www.bourns.com
19.3
Shielded, Molded Chokes
Special Features
• Ferrite magnetic shielded for low radiation
• High Q, high reliability
• Injection molded to protect coil
from extreme environments
• Flame retardant coating
• Consistent body dimension
• Color band or numerical marking identification
• Dielectric strength 1000 Vrms
• Operating temperature -55 to +105 °C
Part
Number
9250-105-RC
9250-125-RC
9250-155-RC
9250-185-RC
9250-225-RC
9250-275-RC
9250-335-RC
9250-395-RC
9250-475-RC
9250-565-RC
9250-685-RC
9250-825-RC
9250-106-RC
9250-126-RC
9250-156-RC
9250-186-RC
9250-226-RC
9250-276-RC
9250-336-RC
9250-396-RC
9250-476-RC
9250-566-RC
9250-686-RC
9250-826-RC
9250-107-RC
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
Test
SRF
DCR
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
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
Notes
* Rated current to cause 35 °C
max. temperature rise
** Incremental current to cause 5 %
max. inductance drop
Bourns recommends using the 9250A
Series as a replacement for the 9250 Series
Only available as RoHS compliant.
1.0
Min.
0.41 -/+0.02
0.025
0.162
-/+0.01
Dimensions: Inches
Tel. (877) 426-8767 • Fax (951) 781-5006
19.4
www.bourns.com
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