Products

Line Filter Choke

EMI Line Filters for filtering common mode power line noise.


In recent times there has been a growing need for energy storage inductors for noise filtering in both mains Line filters and DC chokes used in switched-mode power supplies. In mains line filter applications the filtering falls into two categories: common-mode noise and differential-mode noise.

The line filter arrangement consists of two sections bobbin between the mains supply and the equipment. Note that the common mode filter is wound on a single core and the differential mode filter consists of two indiviual wound cores. The common-mode noise is in relation to ground and is common to both lines. Differential mode noise is the noise between the two lines. Both types of noise are usually present to varying degrees.

Coilmaster EMI line filters (UU) series common mode choke coils are used in a wide range of prevention of radio frequency interference (RFI) and electromagnetic interference (EMI) from power supply lines and for prevention of multifunctioning of products such as measuring equipment and system equipment. Features wide range of selection, high impedance at applicable frequency, and high self-resonant frequency.

The (UU) series is designed to reduce stray capacity between windings by using a single-layer coil and two sections bobbin construction on high permeability ferrite core, which offer excellent high frequency characteristics. This series provides excellent noise suppression for high frequency ranges including the FM band. This filter can also be used as a signal line with excellent withstanding voltage, since the windings are divided into two sections.

Coilmaster is equipped to design and produce custom components to meet many design and reliability demands. Custom parts are available on request. Coilmaster will also produce devices outside these specifications to meet specific customer requirements.
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View Picture Add to Part Name View Picture Specifications Construction Type Size ( Max. ) Inductance Range Current Range RoHS Compliant Download Spec.
Lead Line Filter ET SERIES
ET20LFH
Lead Line Filter ET SERIES
EMI filter, Common Mode Chokes, RFI filters
We manufacture a wide range of inductor, such as Common Mode Inductor, Through hole inductor, and Toroidal inductor.
Lead
8.0x3.5x9.5
2.5mH~62.0mH
0.3A to 2.0A
Lead Line Filter ET SERIES
ET24LF
Lead Line Filter ET SERIES
AC Line Filters EMI/RFI Common Mode Chokes
We provide Toroidal inductor, Common mode choke and Line filter choke with high quality and competitive price.
Lead
16x11x16.5
2.3mH~62.0mH
0.3A to 2.4A
Lead Line Filter ET SERIES
ET24LFH
Lead Line Filter ET SERIES
Line Filter chokes
Sealed
Lead
14.5x16.5x11.3
2.3mH~62.0mH
0.3A to 2.4A
Lead Line Filter ET SERIES
ET28LF
Lead Line Filter ET SERIES
AC line common mode choke,Power-line Filter
Sealed
Lead
18.5x17x22
2.3mH~78.0mH
0.6A to 4.3A
Lead Line Filter ET SERIES
ET28LFH
Lead Line Filter ET SERIES
Power-line common mode choke, AC line Filter
Sealed
Lead
19x16x20.5
2.3mH~78.0mH
0.6A to 4.3A
Lead Line Filter ET SERIES
ET35LF
Lead Line Filter ET SERIES
Through-hole Common Mode Chokes, RFI filters
Sealed
Lead
22x17x23
2.7mH~48.0mH
1.1A to 5.0A
Lead Line Filter ET SERIES
ET35LFH
Lead Line Filter ET SERIES
AC Line Filter, Common Mode Choke,EMI filter
Sealed
Lead
8.0x3.5x9.5
2.7mH~48.0mH
1.1A to 5.0A
Lead Line Filter RS SERIES
RS7080
Lead Line Filter RS SERIES
EMI FIlter, EMI Line Filter Inductor
Sealed
Lead
7.5x6.4x8.0
40uH~80uH
0.5A to 0.5A
RS (Line filter) - Coilmaster Electronics
RS8090
RS (Line filter) - Coilmaster Electronics
Line Filters Chokes
Sealed
Lead
8.0x3.5x9.5
8uH~60uH
20mA to 50mA
SLF0905
SMD Line Filters
Sealed
Lead
9.5x6.3x5.3
11~4700uH
0.2~0.5A
Yes
SLF1206
SMD Line Filters
Sealed
Lead
13.5x11.5x6.05
35~1000uH
0.35~2.7A
Yes
SLF62
SMD Common Mode Chokes
Sealed
Lead Free
6.5x3.6x2.0
10~330uH
300mA
Yes
SLF63
SMD Line Filter
Sealed
Lead Free
6.3x3.6x3.5
11~470uH
400mA
Yes
SMD Line Filter SLF SERIES
SLF95
SMD Line Filter SLF SERIES
SMD Common Mode Choke
Sealed
Lead
9.5x6.3x5.3
10~6500uH
0.3~1.6A
Yes
Lead Line Filter UT SERIES
UT20LF
Lead Line Filter UT SERIES
UT20LF Lead Line Filters
Sealed
Lead
22x17x23
1.2mH~33mH
0.3A to 2.0A
Lead Line Filter , common mode chokes
UT24LF
Lead Line Filter , common mode chokes
UT24LF Lead Line Filters
Sealed
Lead
24.5x14.5x13.5
10mH~100mH
450mA to 1600mA
Lead Line Filter UU SERIES
UU10.5LF
Lead Line Filter UU SERIES
Line Filter Inductor, Common Mode Choke
Sealed
Lead
18.5x17x22
1.5mH~43mH
0.3A to 2.0A
Lead Line Filter UU SERIES
UU15.7LF
Lead Line Filter UU SERIES
AC Line Filters, Common Mode Chokes
Sealed
Lead
19x16x20.5
2.2mH~22mH
0.6A to 2.2A
Led Common Mode Choke - UU9.8 series
UU9.8LF
Led Common Mode Choke - UU9.8 series
UU9.8 Line Filters Choke, Common mode choke
Sealed
Lead
16x11x16.5
0.7mH~43.2mH
0.1A to 1.0A
Lead Line Filter - UU9.8LFH series
UU9.8LFH
Lead Line Filter - UU9.8LFH series
Common Mode Choke Coil, Line Filter
Sealed
Lead
14.5x16.5x11.3
0.7mH~43.2mH
0.1A to 1.0A
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