Shielded, RF Chokes
Sp e cia l Fe a tu re s
8250 Series
Test
Freq.
(MHz)
SRF
(MHz)
Min.
DCR
(Ω)
Max.
Ferrite magnetic shielded for low radiation
High Q, high reliability
•
•
•
Part
Number
L (uH)
± 10%
Q
Min
I, DC
(mA)
I, Incr.
(mA)
8250-R10K
8250-R12K
8250-R15K
8250-R18K
8250-R22K
0.10
0.12
0.15
0.18
0.22
50
50
50
50
50
25
25
25
25
25
400
400
400
400
400
0.026
0.029
0.034
0.044
0.056
3000
2860
2600
2300
2050
3000
2860
2600
2300
2050
Epoxy end-fill to protect coil from extreme
environment
Consistent body diameter
8250-R27K
8250-R33K
8250-R39K
8250-R47K
8250-R56K
8250-R68K
8250-R82K
8250-1R0K
8250-1R2K
8250-1R5K
8250-1R8K
8250-2R2K
8250-2R7K
8250-3R3K
8250-3R9K
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
50
47
47
47
45
43
41
42
43
41
42
42
41
41
41
25
25
25
25
25
25
25
25
7.9
7.9
7.9
7.9
7.9
7.9
7.9
400
325
390
264
249
221
200
156
144
128
121
108
96
88
84
0.09
0.122
0.161
0.218
0.29
0.382
0.45
0.054
0.07
0.096
1625
1400
1220
1060
900
790
725
2080
1840
1560
1480
1290
1130
950
1625
1400
1220
1060
900
790
725
2080
1840
1560
1480
1290
1130
950
•
•
•
•
Dielectric strength 500Vrms
Operating temperature -55 to +105°C
Rated current to cause 35°C temperature
rise
Incremental current to cause 5% inductance
drop
•
0.107
0.142
0.184
0.26
0.354
815
815
8250-4R7K
8250-5R6K
8250-6R8K
8250-8R2K
8250-100K
8250-120K
8250-150K
8250-180K
8250-220K
8250-270K
4.7
5.6
6.8
8.2
10
12
15
18
22
27
42
42
42
46
46
50
50
50
50
50
7.9
7.9
7.9
7.9
7.9
2.5
2.5
2.5
2.5
2.5
72
69
62
58
53
47
41
43
38
36
0.168
0.511
0.75
0.828
1.27
1.76
2.3
0.677
0.742
0.85
710
680
560
535
532
368
325
596
565
526
710
680
560
535
532
368
325
235
220
200
Ty p ica l Ap p lica tio n s
Telecommunications
•
Signal processing
•
High reliability, low magnetic coupling and
•
densely packed board design
8250-330K
8250-390K
8250-470K
8250-560K
8250-680K
33
39
47
56
68
50
50
55
55
55
2.5
2.5
2.5
2.5
2.5
33
29.4
26.5
25
0.928
1.28
1.48
1.64
2.2
505
429
400
380
328
190
180
175
160
150
23
8250-820K
8250-101K
8250-121K
8250-151K
8250-181K
82
55
65
65
65
65
2.5
2.5
0.79
0.79
0.79
14
12
11.2
10.5
10
1.96
2.28
2.45
2.79
3.08
349
322
311
294
277
140
120
95
90
85
1.0
min.
0.45
max.
100
120
150
180
8250-221K
8250-271K
8250-331K
8250-391K
8250-471K
8250-561K
8250-681K
8250-821K
8250-102K
8250-122K
220
270
330
390
470
560
680
820
1000
1200
65
65
65
65
70
70
75
70
65
70
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.25
9.4
8
7.3
6.9
6.5
3.48
4.55
5.1
5.62
6.45
251
231
215
205
192
174
163
151
139
125
80
70
65
60
58
55
50
45
40
35
0.020
0.164
max.
6
8.0
5.6
4.8
4.5
2.6
8.85
10.4
12.1
15.1
8250-152K
8250-182K
8250-222K
8250-272K
8250-332K
1500
1800
2200
2700
3300
70
70
70
70
70
0.25
0.25
0.25
0.25
0.25
2.5
2.3
2.2
2.1
2
16.8
19.1
22.0
25.1
33.3
119
111
103
97
33
30
27
25
22
85
8250-392K
8250-472K
8250-562K
8250-682K
8250-822K
3900
4700
5600
6800
8200
70
70
70
70
70
0.25
0.25
0.25
0.25
0.25
1.8
1.7
1.6
1.5
1.4
36.8
51.2
54.6
62.0
86.6
80
68
66
62
52
20
19
17
16
15
8250-103K
8250-123K
8250-153K
8250-183K
8250-223K
10,000
12,000
15,000
18,000
22,000
70
50
50
50
50
0.25
0.079
0.079
0.079
0.079
1.3
93.1
84.0
97.0
104.0
145.0
50
53
49
48
40
14
13
12
10
9
0.88
0.78
0.72
0.57
8250-273K
8250-333K
8250-393K
8250-473K
8250-563K
27,000
33,000
39,000
47,000
56,000
50
50
50
50
50
0.079
0.079
0.079
0.079
0.079
0.46
0.42
0.42
0.37
0.36
195.0
222.0
242.0
317.0
362.0
34
32
31
27
25
8
7.5
6
5.5
5
8250-683K
8250-823K
8250-104K
68,000
82,000
100,000
50
50
50
0.079
0.079
0.079
0.35
0.34
0.32
410.0
440.0
484.0
24
23
22
4
3.5
3
306 E. Alondra Blvd., Gardena, CA 90247-1059 • (310) 515-1720 • FAX (310) 515-1962
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