(1/1)
002-02 / 20010914 / e9821_sf.fm
SF Series
Differential Mode Choke Coils for Signal Line and DC Power Line
Radial
FEATURES
• The SF series chokes feature cores with high saturation mag-
netic flux density. They thereby provide an effective means of
combating pluse EMC.
• By using an advanced amorphous metal alloy core, the SF
series are able to provide line noise attenuation performance
equivalent to conventional ferrite-based chokes but with far
more compact dimensions and fewer coil turns. They can thus
be implemented in high-density circuit configurations to comply
with various EMC-related regulations.
SHAPES AND DIMENSIONS/ELECTRICAL CHARACTERISTICS
D
H
EMC Components
TYPICAL CHARACTERISTICS OF SF CORE
µi[300kHz]
tan
δ
/µi[300kHz]
Applicable frequency
Temperature stability[–20 to +60°C]
Bs[24kA/m]
75
3
×
10
–3
10MHz max.
5.2%
1400mT
L
(F)
3max.
Dimensions in mm
Part No.
SF-T3-20-01
SF-T5-30-03
SF-T5-40-01
SF-T5-60
SF-T8-90S-01
SF-T8-70D-02
SF-T5-17-02
SF-T5-25-01
SF-T8-40S
SF-T8-50S
SF-T8-50D
SF-T8-60L-02
SF-T8-70L-02
SF-T10-80-01
SF-T10-30
SF-T10-40
SF-T10-50
SF-T10-60-01
SF-T12-95-01
SF-T12-30
SF-T12-40
SF-T12-50
SF-T12-60-05
SF-T12-75-02
SF-T15-40L-01
SF-T13-35-01
SF-T15-20L-01
∗
1
LCR METER:
∗
2
UEW (Grade
Rated
current
(A)max.
1
1
1
1
1
1
2
2
2
2
2
2
2
2
3
3
3
3
3
5
5
5
5
5
8
10
15
Inductance
∗
1
(µH)min.
10
30
110
150
200
300
10
32
46
72
125
200
260
300
40
72
110
160
400
35
64
100
140
200
100
65
30
DC
resistance
(m
Ω
)max.
40
80
125
280
150
150
30
42
70
85
100
115
160
160
40
50
70
80
110
30
40
50
50
60
20
30
7
Shape
SF-T3
SF-T5
SF-T5
SF-T5
SF-T8S
SF-T8D
SF-T5
SF-T5
SF-T8S
SF-T8S
SF-T8D
SF-T8L
SF-T8L
SF-T10
SF-T10
SF-T10
SF-T10
SF-T10
SF-T12
SF-T12
SF-T12
SF-T12
SF-T12
SF-T12
SF-T15L
SF-T13
SF-T15L
Diameter of
winding wire
∗
2
ø(mm)
0.4
0.4
0.4
0.4
0.6
0.6
0.55
0.55
0.6
0.6
0.6
0.6
0.55
0.6
0.8
0.8
0.8
0.8
0.8
1
1
1
1
1
1.5
1.6
1.8
Dimensions(mm)
D max.
8.5
12.5
12.5
14
17.5
18
13.5
13
17
17
17
19
18.5
22
22
23
23
24
26.5
26
26
26
27
27
33.5
31
35
H max.
6
6
6.5
9
10.5
13
8
7
9.5
9.5
12.5
11
11
12
12.5
12.5
12.5
13
13.5
12
12.5
13
14
14
18
18.5
18.5
L
20±3
25±3
25±3
25±3
25±3
25±3
25±3
25±3
25±3
25±3
25±3
25±3
25±3
25±3
25±3
25±3
25±3
25±3
25±3
25±3
25±3
25±3
25±3
25±3
20±3
25±3
20±3
(F)
∗
3
(5.5)
(6)
(6)
(6)
(8)
(11)
(6)
(6)
(8)
(8)
(10)
(8)
(8)
(10)
(10)
(10)
(10)
(10)
(10)
(10)
(10)
(10)
(10)
(10)
(17)
(16)
(15)
Weight
(g)
1
3
3
3
6.5
8.5
3
3
5.5
6
8
9.5
9.5
12
12.5
13
14
14
20
17
17.5
20
21
23
55
40
50
YHP4261A, 1kHz(L
1)
∗
3
Reference value
190µH:70mA, L>190µH:10mA)
• All specifications are subject to change without notice.
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