Document
AC COMMON MODE CHOKES
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M OUTLINE
1. Common mode chokes for effective AC line noise prevention
LF1290
17.0MAX. 13.0MAX.
DIMENSIONS (mm)
K Impedance Characteristics
100k
9.5MAX. 3.5
14.0
103 682
4-ø0.6
472
9.0
IMPEDANCE (Ω)
10k
392 222 471
1k
681 102
Schematics
S
2
3
S
2
3
100 10k 100k 1M 10M 40M
FREQUENCY (Hz)
1
4
1 S
4 S
K Specifications
Type Inductance Inductance Balance
(1-2) (4-3) LF1290-471 LF1290-681 LF1290-102 LF1290-222 LF1290-392 Min.470µH Min.680µH Min.1.0mH Min.2.2mH Min.3.9mH Min.4.7mH Min.6.8mH Min.10.0mH Max.50µH Max.50µH Max.150µH Max.150µH Max.200µH Max.300µH Max.400µH Max.550µH
D.C.R.
(1-2) (4-3) @ 20°C Max.150mΩ Max.250mΩ Max.350mΩ Max.700mΩ Max.1.20Ω Max.1.60Ω Max.2.50Ω Max.4.00Ω
Rated current
50/60Hz 1.10Arms 850mArms 650mArms 450mArms 360mArms 340mArms 250mArms 200mArms
M FEATURES
1. Small size and large inductance type 2. Exellent attenuation characteristics in low frequency
APPLICATION
1. Noise prevention for TV, VCR, AV, OA equipments
LF1290-472 LF1290-682 LF1290-103
LF2020
17.2MAX. 22.0MAX.
DIMENSIONS (mm)
Schematics
K Impedance Characteristics
1M
3
22.5MAX.
4.5
10.0
2
100k
333 223 183 103 392 222
4-ø0.8
13.0
1
4
IMPEDANCE (Ω)
10k
S
S
or
S
2
1k
S
3
100
LF2115
22.0MAX.
DIMENSIONS (mm)
1 4
10
17.0MAX.
3.5 ø0.8
13.0
1
1k
10k
100k
1M
10M
40M
FREQUENCY (Hz)
22.0MAX. 17.0
K Specifications
Type Inductance Inductance Balance
(1-2) (4-3) @1kHz LF2020/LF2115-222 LF2020/LF2115-392 LF2020/LF2115-103 LF2020/LF2115-183 Min.2.2mH Min.3.9mH Min.10.0mH Min.18.0mH Min.22.0mH Min.33.0mH Max.150µH Max.150µH Max.550µH Max.600µH Max.800µH Max.800µH
D.C.R.
(1-2) (4-3) @ 20°C Max.240mΩ Max.410mΩ Max.1.00Ω Max.1.63Ω Max.2.04Ω Max.3.42Ω
Rated current
50/60Hz 1.3Arms 1.0Arms 600mArms 500mArms 400mArms 300mArms
M FEATURES
1. Low profile type of LF2020
APPLICATION
1. Noise prevention for TV, VCR, AV, OA equipments
LF2020/LF2115-223 LF2020/LF2115-333
9
.