9822_SF
(1/2)
SF Series
Differential Mode Choke Coils for Signal Line and DC Power Line
Radial
MOLDED TYPE
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]
tanδ/µi[300kHz]
Applicable frequency
Temperature stability[–20 to +60°C]
Bs[24kA/m]
75
3×10
–3
10MHz max.
5.2%
1400mT
1.5max.
L
(F)
3max.
Dimensions in mm
Diameter of
Dimensions(mm)
DC
Rated
Weight
Inductance
∗1
Shape
winding wire
∗2
resistance
current
(g)
(µH)min.
D max.
H max.
L
(F)
∗3
ø(mm)
(mΩ)max.
(A)max.
SF-T8-30SM
2
26
55
SF-T8S
0.6
19
11
25±3
8
5.5
SF-T8-40SM
2
46
70
SF-T8S
0.6
20
11
25±3
8
5.5
SF-T8-50SM
2
72
85
SF-T8S
0.6
20
11
25±3
8
6.5
SF-T8-50DM
2
125
100
SF-T8D
0.6
20
15
25±3
11
9.5
SF-T10-30M
3
40
40
SF-T10
0.8
24
13
25±3
10
14
SF-T10-40M
3
72
50
SF-T10
0.8
25
14
25±3
10
15
SF-T10-50M
3
110
70
SF-T10
0.8
25
14
25±3
10
16
SF-T12-30M
5
35
30
SF-T12
1
30
15
25±3
10
19
SF-T12-40M
5
64
40
SF-T12
1
30
15
25±3
10
20
SF-T12-50M
5
100
50
SF-T12
1
30
15
25±3
10
22
∗1
LCR METER: YHP4261A, 1kHz(L
190µH:70mA, L>190µH:10mA)
∗2
UEW (Grade 1)
∗3
Reference value
• Please contact TDK, when specifying dimensions of the center hole for the coil.
• Be cautions when handling molded types since the coating might crack or peel off if the lead wire is pulled in a right angle. However, even if the coating
cracks or peels off, there will be no damage to the electrical characteristics.
Part No.
Specifications which provide more details for the proper and safe use of the described product are available upon request.
All specifications are subject to change without notice.
9822_SF
(2/2)
SF Series
Differential Mode Choke Coils for Signal Line and DC Power Line
Radial
MOLDED TYPE FOR LARGE CURRENT
SHAPES AND DIMENSIONS/ELECTRICAL CHARACTERISTICS
D
H
EMC Components
2max.
L
5max.
Dimensions in mm
Part No.
SF-HP-6A-01
SF-HP-8A-01
SF-HP-10A-01
SF-HP-15A-01
∗1
LCR
∗2
PEW
Rated
current
(A)max.
6
8
10
15
Inductance
∗1
(µH)min.
100
100
60
60
DC
resistance
(mΩ)max.
40
25
20
20
Shape
SF-T13
SF-T15L
SF-T24
SF-T27
Diameter of
winding wire
∗2
ø(mm)
1.2
1.5
1.8
2.3
Dimensions(mm)
D max.
35
37
52
60
H max.
20
20
25
28
L
50±5
50±5
50±5
50±5
Weight
(g)
37
61
133
167
METER: YHP4261A, 1kHz(L 190µH:70mA, L>190µH:10mA)
(Grade 1)
• Please contact us, when specifying dimensions of the center hole for the coil.
• Be cautions when handling molded types since the coating might crack or peel off if the lead wire is pulled in a right angle. However, even if the coating
cracks or peels off, there will be no damage to the electrical characteristics.
9822_SF
991116
Specifications which provide more details for the proper and safe use of the described product are available upon request.
All specifications are subject to change without notice.
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