Power Line Filters

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Our Power Line Filter range includes single-phase and three-phase types for industrial, medical and general purpose applications.

A power line filter, also called an EMI power line filter, is a passive bi-directional network, which effectively filters out a particular frequency point in the power line, or passes a selected frequency. Designed to block mains-born electromagnetic interference (EMI), power line filters are frequency-selective two-port networks usually comprising inductors, capacitors, and resistors.

They operate as reflection filters, which provide high series impedance and low parallel impedance in the filter stop band, severely mismatching noise source impedance and load impedance; thus transmitting the undesired frequency components back to the noise source.

Choosing a power line filter

When selecting the power line filter, three main indicators should be considered: firstly, voltage and current, then insertion loss, and finally, size and structure. Since the filter is typically potted, environment is not a primary concern. However, the temperature characteristics of all potting materials and filter capacitors have some influence on the environmental characteristics of the power filter.

Insertion loss is one of the most important technical parameters of an EMI power filter. It should be as high as possible to ensure the safety of the equipment in which the filter is used, and the surrounding environment.

Insertion loss is a function of frequency, expressed in dB. Insertion loss of an EMI power line filter includes common mode (CM) insertion loss and differential mode (DM) insertion loss.

Applications for power line filters

EMI power line filters are used in the following applications:
  1. Household appliances
  2. Military/Aerospace Systems
  3. Medical Equipment
  4. Computers
  5. Energy Management Systems
  6. Automotive Battery Charger
  7. Industrial Equipment
 
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2499-003-U2MO-101KLF
2499-003-U2MO-101KLF - Power Line Filter, Chassis, General Purpose, 500 V, 20 A, Chassis Mount

1186421

Power Line Filter, Chassis, General Purpose, 500 V, 20 A, Chassis Mount

CTS / TUSONIX

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General Purpose 500V 20A EMI, RFI - Radial Leaded 100pF - - Chassis Mount - Wire Leaded Wire Leaded Multicomp Pro RJ45 Adapter
B84143A0050R000
B84143A0050R000 - Power Line Filter, General Purpose, 480 VAC, 50 A, Three Phase, 1 Stage, Chassis Mount

3409303

Power Line Filter, General Purpose, 480 VAC, 50 A, Three Phase, 1 Stage, Chassis Mount

EPCOS

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General Purpose 480VAC 50A - Three Phase - - 1 Stage - Chassis Mount - Terminal Block Terminal Block B84143A
5500.2269
5500.2269 - Power Line Filter, Chassis, General Purpose, 250 VAC, 6 A, Single Phase, 2 Stage, DIN Rail Mount

2134487

Power Line Filter, Chassis, General Purpose, 250 VAC, 6 A, Single Phase, 2 Stage, DIN Rail Mount

SCHURTER

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General Purpose 250VAC 6A 1 Phase Single Phase Screw - 2 Stage 800µH DIN Rail Mount 250µA Terminal Block Terminal Block FMBB
IHF436
IHF436 - Power Line Filter, Installation, General Purpose, 440 VAC, 36 A, Three Phase, 1 Stage

1187696

Power Line Filter, Installation, General Purpose, 440 VAC, 36 A, Three Phase, 1 Stage

ROXBURGH EMC

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General Purpose 440VAC 36A EMI, RFI Three Phase Stud 2.2µF 1 Stage 550µH Chassis Mount 3.5mA Stud Stud Multicomp Pro RJ45 Adapter
1EOP
1EOP - Power Line Filter, General Purpose, 250 VAC, 1 A, Single Phase, 1 Stage, Through Hole

2478123

Power Line Filter, General Purpose, 250 VAC, 1 A, Single Phase, 1 Stage, Through Hole

CORCOM - TE CONNECTIVITY

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General Purpose 250VAC 1A 1 Phase Single Phase Through Hole - 1 Stage 10mH Through Hole 420µA - - EOP
LF-310
LF-310 - Power Line Filter, General Purpose, 250 VAC, 10 A, Three Phase, 2 Stage, Chassis Mount

3290474

Power Line Filter, General Purpose, 250 VAC, 10 A, Three Phase, 2 Stage, Chassis Mount

KEMET

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General Purpose 250VAC 10A 3 Phase Three Phase Screw - 2 Stage - Chassis Mount 1mA Stud Stud LF Series
FLLE2016AUDB
FLLE2016AUDB - Power Line Filter, General Purpose, 300 VAC, 16 A, Single Phase, 2 Stage, Chassis Mount

3517446

Power Line Filter, General Purpose, 300 VAC, 16 A, Single Phase, 2 Stage, Chassis Mount

KEMET

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General Purpose 300VAC 16A - Single Phase - - 2 Stage - Chassis Mount - Quick Connect Quick Connect FLLE2-U Series
FLLE2006APDB
FLLE2006APDB - Power Line Filter, General Purpose, 300 VAC, 6 A, Single Phase, 1 Stage, Chassis Mount

3517424

Power Line Filter, General Purpose, 300 VAC, 6 A, Single Phase, 1 Stage, Chassis Mount

KEMET

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General Purpose 300VAC 6A - Single Phase - - 1 Stage - Chassis Mount - Quick Connect Quick Connect FLLE2-P Series
3EQ1
3EQ1 - Power Line Filter, Installation, General Purpose, 250 VAC, 3 A, Single Phase, 2 Stage

9586210

Power Line Filter, Installation, General Purpose, 250 VAC, 3 A, Single Phase, 2 Stage

CORCOM - TE CONNECTIVITY

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- 250VAC 3A EMI, RFI - Quick Connect 1.08µF - 32.18mH - 380µA - - -
B84143A0025R000
B84143A0025R000 - Power Line Filter, General Purpose, 480 VAC, 25 A, Three Phase, 1 Stage, Chassis Mount

3409300

Power Line Filter, General Purpose, 480 VAC, 25 A, Three Phase, 1 Stage, Chassis Mount

EPCOS

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General Purpose 480VAC 25A - Three Phase - - 1 Stage - Chassis Mount - Terminal Block Terminal Block B84143A
1VB3
1VB3 - Power Line Filter, General Purpose, 250 VAC, 1 A, Single Phase, 1 Stage, Chassis Mount

3394722

Power Line Filter, General Purpose, 250 VAC, 1 A, Single Phase, 1 Stage, Chassis Mount

CORCOM - TE CONNECTIVITY

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General Purpose 250VAC 1A EMI, RFI Single Phase Wire Leaded 12000pF 1 Stage 1.86mH Chassis Mount 700µA Wire Leaded Wire Leaded B
FLLE2006AUDB
FLLE2006AUDB - Power Line Filter, General Purpose, 300 VAC, 6 A, Single Phase, 2 Stage, Chassis Mount

3517443

Power Line Filter, General Purpose, 300 VAC, 6 A, Single Phase, 2 Stage, Chassis Mount

KEMET

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General Purpose 300VAC 6A - Single Phase - - 2 Stage - Chassis Mount - Quick Connect Quick Connect FLLE2-U Series
GTX-2060-Y00
GTX-2060-Y00 - Power Line Filter, General Purpose, 250 VAC, 6 A, Single Phase, 1 Stage, Chassis Mount

3547799

Power Line Filter, General Purpose, 250 VAC, 6 A, Single Phase, 1 Stage, Chassis Mount

KEMET

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General Purpose 250VAC 6A - Single Phase - - 1 Stage - Chassis Mount - Screw Screw GTX Series
RES20F10
RES20F10 - Power Line Filter, Chassis, General Purpose, 250 VAC, 10 A, Single Phase, 1 Stage, Chassis Mount

2468215

Power Line Filter, Chassis, General Purpose, 250 VAC, 10 A, Single Phase, 1 Stage, Chassis Mount

ROXBURGH EMC

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General Purpose 250VAC 10A - Single Phase - - 1 Stage - Chassis Mount - Quick Connect Quick Connect RES20
20EQ1
20EQ1 - Power Line Filter, Installation, General Purpose, 250 VAC, 20 A, Single Phase, 2 Stage

9586237

Power Line Filter, Installation, General Purpose, 250 VAC, 20 A, Single Phase, 2 Stage

CORCOM - TE CONNECTIVITY

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General Purpose 250VAC 20A EMI, RFI Single Phase Quick Connect 4.4µF 2 Stage 6mH Chassis Mount 380µA Quick Connect Quick Connect Q
B84113H0000B110
B84113H0000B110 - Power Line Filter, General Purpose, 250 VAC, 10 A, Single Phase, 2 Stage, Chassis Mount

3408824

Power Line Filter, General Purpose, 250 VAC, 10 A, Single Phase, 2 Stage, Chassis Mount

EPCOS

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- 250VAC 10A - - - - - - - - - - -
LF-240
LF-240 - Power Line Filter, General Purpose, 250 VAC, 40 A, Single Phase, 2 Stage, Chassis Mount

3290468

Power Line Filter, General Purpose, 250 VAC, 40 A, Single Phase, 2 Stage, Chassis Mount

KEMET

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General Purpose 250VAC 40A 1 Phase Single Phase Screw - 2 Stage - Chassis Mount 1mA Stud Stud LF Series
LF-320
LF-320 - Power Line Filter, General Purpose, 250 VAC, 20 A, Three Phase, 2 Stage, Chassis Mount

3290477

Power Line Filter, General Purpose, 250 VAC, 20 A, Three Phase, 2 Stage, Chassis Mount

KEMET

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General Purpose 250VAC 20A 3 Phase Three Phase Screw - 2 Stage - Chassis Mount 1mA Stud Stud LF Series
B84113H0000M110
B84113H0000M110 - Power Line Filter, Medical, 250 VAC, 10 A, Single Phase, 2 Stage, Chassis Mount

3296525

Power Line Filter, Medical, 250 VAC, 10 A, Single Phase, 2 Stage, Chassis Mount

EPCOS

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- 250VAC 10A Medical - Quick Connect 1.5µF - 3.9mH - - - - -
30KEHD10ABSD
30KEHD10ABSD - Power Line Filter, AC/DC Drives, HVAC, Robotics, UPS, 440 VAC, 30 A, Three Phase, 2 Stage

3586221

Power Line Filter, AC/DC Drives, HVAC, Robotics, UPS, 440 VAC, 30 A, Three Phase, 2 Stage

CORCOM - TE CONNECTIVITY

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AC/DC Drives, HVAC, Robotics, UPS 440VAC 30A 3 Phase Three Phase Terminal Block - 2 Stage - Chassis Mount 10mA Terminal Block Terminal Block KEH-BS
GTX-2200-Y00
GTX-2200-Y00 - Power Line Filter, General Purpose, 250 VAC, 20 A, Single Phase, 1 Stage, Chassis Mount

3547803

Power Line Filter, General Purpose, 250 VAC, 20 A, Single Phase, 1 Stage, Chassis Mount

KEMET

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General Purpose 250VAC 20A - Single Phase - - 1 Stage - Chassis Mount - Screw Screw GTX Series
NFA21SL806X1A48L
NFA21SL806X1A48L - Power Line Filter, Automotive Electronics, 10 V, 20 mA, Surface Mount

3471644

Power Line Filter, Automotive Electronics, 10 V, 20 mA, Surface Mount

MURATA

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3471644RL in Re-Reel

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Automotive Electronics 10V 20mA - - - - - - Surface Mount - SMD SMD EMIFIL NFA21SL
B84112G0000M116
B84112G0000M116 - Power Line Filter, Medical, 250 VAC, 16 A, Single Phase, 1 Stage, Chassis Mount

3296523

Power Line Filter, Medical, 250 VAC, 16 A, Single Phase, 1 Stage, Chassis Mount

EPCOS

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Medical 250VAC 16A Medical Single Phase Quick Connect 0.47µF 1 Stage 1.8mH Chassis Mount - Quick Connect Quick Connect B84112G
B84143A0180R000
B84143A0180R000 - Power Line Filter, General Purpose, 480 VAC, 180 A, Three Phase, 1 Stage, Chassis Mount

3409311

Power Line Filter, General Purpose, 480 VAC, 180 A, Three Phase, 1 Stage, Chassis Mount

EPCOS

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General Purpose 480VAC 180A - Three Phase - - 1 Stage - Chassis Mount - Terminal Block Terminal Block B84143A
B84233A1500R000
B84233A1500R000 - Power Line Filter, General Purpose, 530 VAC, 50 A, Three Phase, 1 Stage, Chassis Mount

3381548

Power Line Filter, General Purpose, 530 VAC, 50 A, Three Phase, 1 Stage, Chassis Mount

EPCOS

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General Purpose 530VAC 50A - Three Phase - - 1 Stage - Chassis Mount - Terminal Block Terminal Block LeaXield