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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MEM2012TC101
MEM2012TC101 - Power Line Filter, 12 V, 1 A

1669518RL

Power Line Filter, 12 V, 1 A

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MEM2012T75R0
MEM2012T75R0 - Power Line Filter, 250 mA

1843198RL

Power Line Filter, 250 mA

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MEM2012T75R0
MEM2012T75R0 - Power Line Filter, 250 mA

1843198

Power Line Filter, 250 mA

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MEM2012TC101
MEM2012TC101 - Power Line Filter, 12 V, 1 A

1669518

Power Line Filter, 12 V, 1 A

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MEM2012P101R
MEM2012P101R - Power Line Filter, 12 V

1669506RL

Power Line Filter, 12 V

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MEM2012P101R
MEM2012P101R - Power Line Filter, 12 V

1669506

Power Line Filter, 12 V

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NFL21SP106X1C3D
NFL21SP106X1C3D - Power Line Filter, General Purpose, 16 V, 100 mA, Surface Mount

2456130RL

Power Line Filter, General Purpose, 16 V, 100 mA, Surface Mount

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NFL21SP506X1C3D
NFL21SP506X1C3D - Power Line Filter, 16 VDC, 150 mA

2470494RL

Power Line Filter, 16 VDC, 150 mA

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NFE31PT222Z1E9L
NFE31PT222Z1E9L - Power Line Filter, 2200 pF, 50 %, 25 V, 6 A, SMD

952817201

Power Line Filter, 2200 pF, 50 %, 25 V, 6 A, SMD

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MEM2012S25R0T001
MEM2012S25R0T001 - Power Line Filter, General Purpose, 10 V, 100 mA, Surface Mount

3648133RL

Power Line Filter, General Purpose, 10 V, 100 mA, Surface Mount

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General Purpose 10V 100mA - - Surface Mount - - MEM
NFL21SP407X1C3D
NFL21SP407X1C3D - Power Line Filter, 16 V, 300 mA

3471660RL

Power Line Filter, 16 V, 300 mA

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NFL21SP307X1C3D
NFL21SP307X1C3D - Power Line Filter, 16 V, 300 mA

3471659RL

Power Line Filter, 16 V, 300 mA

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NFE61PT101Z1H9L
NFE61PT101Z1H9L - Power Line Filter, General Purpose, 50 V, 2 A, Surface Mount

9528199RL

Power Line Filter, General Purpose, 50 V, 2 A, Surface Mount

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NFE61PT101Z1H9L
NFE61PT101Z1H9L - Power Line Filter, General Purpose, 50 V, 2 A, Surface Mount

9528199

Power Line Filter, General Purpose, 50 V, 2 A, Surface Mount

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NFE61PT101Z1H9L
NFE61PT101Z1H9L - Power Line Filter, General Purpose, 50 V, 2 A, Surface Mount

952819901

Power Line Filter, General Purpose, 50 V, 2 A, Surface Mount

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MEM2012F101RT001
MEM2012F101RT001 - Power Line Filter, 10 V, 100 mA

2407431RL

Power Line Filter, 10 V, 100 mA

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- 10V 100mA - - - - - TUK SGACK902S Keystone Coupler
MEM2012V121RT001
MEM2012V121RT001 - Power Line Filter, General Purpose, 10 V, 100 mA, Surface Mount

3648134RL

Power Line Filter, General Purpose, 10 V, 100 mA, Surface Mount

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General Purpose 10V 100mA - - Surface Mount - - MEM
MEM2012S25R0T001
MEM2012S25R0T001 - Power Line Filter, General Purpose, 10 V, 100 mA, Surface Mount

3648133

Power Line Filter, General Purpose, 10 V, 100 mA, Surface Mount

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General Purpose 10V 100mA - - Surface Mount - - MEM
NFL21SP206X1C7D
NFL21SP206X1C7D - Power Line Filter, General Purpose, 16 V, 100 mA, Surface Mount

2456131RL

Power Line Filter, General Purpose, 16 V, 100 mA, Surface Mount

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NFA18SL506X1A45L
NFA18SL506X1A45L - Power Line Filter, Automotive Electronics, 10 V, 25 mA, Surface Mount

3471641RL

Power Line Filter, Automotive Electronics, 10 V, 25 mA, Surface Mount

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Automotive Electronics 10V 25mA - - Surface Mount SMD SMD EMIFIL NFA18SL
NFL18ZT207H1A3D
NFL18ZT207H1A3D - Power Line Filter, AEC-Q200, Automotive Electronics, 10 V, 100 mA, Surface Mount

3353068

Power Line Filter, AEC-Q200, Automotive Electronics, 10 V, 100 mA, Surface Mount

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Automotive Electronics 10V 100mA - - - SMD SMD -
NFE31PT222Z1E9L
NFE31PT222Z1E9L - Power Line Filter, 2200 pF, 50 %, 25 V, 6 A, SMD

9528172RL

Power Line Filter, 2200 pF, 50 %, 25 V, 6 A, SMD

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NFL21SP506X1C3D
NFL21SP506X1C3D - Power Line Filter, 16 VDC, 150 mA

2470494

Power Line Filter, 16 VDC, 150 mA

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NFL21SP106X1C3D
NFL21SP106X1C3D - Power Line Filter, General Purpose, 16 V, 100 mA, Surface Mount

2456130

Power Line Filter, General Purpose, 16 V, 100 mA, Surface Mount

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General Purpose 16V 100mA - - Surface Mount - - TUK SGACK902S Keystone Coupler
NFL18ST207X1C3D
NFL18ST207X1C3D - Power Line Filter, 16 V, 150 mA

3471651RL

Power Line Filter, 16 V, 150 mA

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