9841_SF
(1/3)
SF1 Series
Differential Mode Choke Coils for Signal Line and DC Power Line
EMC Components
Pin Terminal
For Noise Suppression
FEATURES
TYPICAL CHARACTERISTICS OF SF CORE
• 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.
µi[300kHz]
tanδ/µi[300kHz]
Applicable frequency
Temperature stability[–20 to +60°C]
Bs[24kA/m]
75
3×10
10MHz max.
5.2%
1400mT
–3
SHAPES AND DIMENSIONS/ELECTRICAL CHARACTERISTICS
SF1-T SERIES, ON BOARD TYPE WITH BASE (WITH SUPPORT PIN TERMINAL)
2-ø0.7
( )
f
( )
F
L
W
Dimensions in mm
Rated
current
(A)max.
DC
resistance
(mΩ)max.
40
80
90
110
55
70
85
Diameter of
Dimensions(mm)
1
Inductance
(µH)min.
Weight
(g)
2
Part No.
winding wire
ø(mm)
0.4
0.4
0.4
0.4
0.6
0.6
0.6
3
3
L max.
W max. H max.
(F)
(f)
SF1-T3-20-03
SF1-T5-30-01
SF1-T5-35-01
SF1-T5-40-01
SF1-T8-30S-01
SF1-T8-40S-01
SF1-T8-50S-01
SF1-T8-40D-01
SF1-T8-50D-01
1
1
1
1
2
2
2
2
2
10
30
50
80
26
46
72
80
125
10
9.3
9
9
9.5
15
15
15.5
18
18
18
18
18
(7.4)
(7.5)
(7.5)
(7.5)
(9.7)
(9.7)
(9.7)
(13)
(8.5)
(10)
(10)
(10)
(14)
(14)
(14)
(14)
(14)
1.3
3
2.6
2.7
5.5
6
6.5
9
9
13.5
13.5
13.5
18
18
18
9
12.5
12.5
12.5
16
85
100
0.6
0.6
18.5
18.5
16
(13)
1LCR METER: YHP4261A, 1kHz(L 190µH:70mA, L>190µH:10mA) 2UEW (Grade 1) 3Reference value
SF1-T SERIES, HORIZONTAL ON BOARD TYPE WITH BASE (WITHOUT SUPPORT PIN TERMINAL)
W
H
5±1
Dimensions in mm
Rated
current
(A)max.
DC
resistance
(mΩ)max.
110
75
55
70
85
40
50
70
30
40
Diameter of
winding wire
Dimensions(mm)
1
Inductance
(µH)min.
Weight
(g)
2
Part No.
3
L max.
W max.
H max.
(F)
ø(mm)
0.4
0.5
0.6
0.6
0.6
0.8
0.8
0.8
1
SF1-T5-40-02
SF1-T5-35-02
SF1-T8-30S-02
SF1-T8-40S-02
SF1-T8-50S-02
SF1-T10-30-02
SF1-T10-40-02
SF1-T10-50-02
SF1-T12-30-02
SF1-T12-40-02
SF1-T12-50-02
1
2
2
2
2
3
3
3
5
5
5
80
63
26
46
72
40
72
110
35
64
100
16.3
16.3
19
19
19
26.5
26.5
26.5
30
30
30
14
14
17
17
17
22
22
22
26
26
26
8.9
8.9
10.5
10.5
10.5
15
15
15
16.5
16.5
16.5
(12.7)
(12.7)
(15.2)
(15.2)
(15.2)
(20)
(20)
(20)
(25)
(25)
3.5
3
5.5
5.6
6
13
14
16
18.5
20
1
1
50
(25)
22.5
1LCR METER:YHP4261A, 1kHz(L 190µH:70mA, L>190µH:10mA) 2UEW (Grade 1) 3Reference value
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.