Varnished Chokes
70F Series
Special Features
Test
Freq.
(MHz)
25
25
25
25
25
25
25
SRF
DCR
Dim. Dim.
• High Q, high self-resonant
Part
Number
L (µH)
± ±2 ꢀ
0.10
0.15
0.22
0.33
0.47
0.68
0.75
0.82
1.0
10 ꢀ
1.2
1.5
1.8
2.2
2.7
3.3
3.9
4.7
5.6
6.8
7.5
8.2
Q
Ω
I, DC*
A
B
Core
Max. (mA) Max ± 2.20 Material
0.13
0.25
0.38
0.70
0.125
0.20
0.264
0.29
frequency
70F107AP-RC
70F157AP-RC
70F227AP-RC
70F337AP-RC
70F477AP-RC
70F687AP-RC
70F757AP-RC
70F827AP-RC
70F106AI-RC
49
52
48
47
46
48
48
48
41
600
490
400
330
280
240
224
216
118
3922
2828
2294
1690
1264
1000
870
0.15
0.14
0.14
0.12
0.12
0.12
0.12
0.12
0.16
0.31
0.31
0.31
0.31
0.31
0.31
0.31
0.31
0.25
Phenolic
Phenolic
Phenolic
Phenolic
Phenolic
Phenolic
Phenolic
Phenolic
Iron
• High voltage application on phenolic
and ferrite components
• Universal wound
• Low cost
• Varnish coated
• Operating temperature:
phenolic -55 to +125 °C;
iron, ferrite -55 to +105 °C
25
25
830
2041
0.048
70F126AI-RC
70F156AI-RC
70F186AI-RC
70F226AI-RC
70F276AI-RC
70F336AI-RC
70F396AI-RC
70F476AI-RC
70F566AI-RC
70F686AI-RC
70F756AI-RC
70F826AI-RC
70F916AI-RC
70F105AI-RC
70F125AI-RC
70F155AI-RC
45
42
31
43
34
40
35
43
41
40
32
37
41
36
52
52
7.9
7.9
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
118
102
89
87
74
66
61
53
49
49
44
41
21
19
19
16
0.072
0.096
0.096
0.156
0.168
0.24
0.264
0.457
0.492
0.624
0.624
0.744
1.44
1666
1443
1443
1132
1091
912
870
661
637
566
566
518
288
277
267
250
0.16
0.16
0.16
0.16
0.16
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.16
0.16
0.16
0.16
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Notes
* Current to cause 35 °C max. temperature rise
† RoHS Directive 2002/95/EC Jan 27 2003
including Annex.
9.1
10
12
15
1.56
1.68
1.92
1.25
B
5 ꢀ
18
70F185AI-RC
70F225AI-RC
70F255AI-RC
70F275AI-RC
70F335AI-RC
70F395AI-RC
70F475AI-RC
70F565AI-RC
70F685AI-RC
70F755AI-RC
70F825AI-RC
70F915AI-RC
70F104AI-RC
70F124AI-RC
70F154AI-RC
70F184AI-RC
70F204AI-RC
70F224AI-RC
70F254AI-RC
70F274AI-RC
70F304AI-RC
70F334AI-RC
70F354AI-RC
52
51
48
49
50
48
44
45
42
38
41
41
25
40
47
48
47
46
49
46
46
41
46
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
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
15
13
13
12
10
2.28
2.28
2.64
2.64
2.76
3.36
3.36
3.84
4.2
229
229
213
213
208
188
188
176
169
162
158
156
139
135
135
135
120
114
111
106
106
103
102
0.16
0.16
0.17
0.17
0.17
0.17
0.17
0.18
0.18
0.18
0.18
0.18
0.16
0.16
0.16
0.17
0.17
0.17
0.17
0.17
0.17
0.17
0.18
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
Iron
22
25
27
33
39
47
56
68
A
Dia.
0.025 for 0.1-22,000uh
9.3
9.1
8.6
8.1
7.2
6.7
6.7
3.6
3.2
3.0
2.8
2.7
2.5
2.5
2.5
2.2
2.0
2.0
0.032 for 25,000-500,000uh
Dimensions: Inches
75
82
91
4.56
4.8
4.92
7.68
8.16
8.16
8.16
10.3
11.5
12.1
13.2
13.2
13.9
14.4
100
120
150
180
200
220
250
270
300
330
350
“-RC” suffix indicates RoHS compliance.
Continued next page.
Tel. (877) 426-8767 • Fax (951) 781-5006
20.3
www.bourns.com
REV. 06/07