Power Line Filters
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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:- Household appliances
- Military/Aerospace Systems
- Medical Equipment
- Computers
- Energy Management Systems
- Automotive Battery Charger
- Industrial Equipment
Manufacturer Part No | Order Code | Description / Manufacturer | Availability | Price For |
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Quantity | Input Voltage | Filter Applications | Voltage Rating | Current Rating | No. of Phases | Width | No. of Stages | Height | Filter Mounting | Filter Input Terminals | Filter Output Terminals | Product Range | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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BNX016-01
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1828969 |
Power Line Filter, Amusement Equipment, Displays, Digital AV Equipment, PC Peripheral Equipment MURATA
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- | Amusement Equipment, Displays, Digital AV Equipment, PC Peripheral Equipment | 25V | 15A | - | - | 1 Stage | - | Through Hole | PC Pin | PC Pin | EMIFIL BNX Series | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
10EMC1
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9586474 |
Power Line Filter, General Purpose, 250 VAC, 10 A, Single Phase, 2 Stage, Chassis Mount CORCOM - TE CONNECTIVITY
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- | General Purpose | 250VAC | 10A | Single Phase | - | 2 Stage | - | Chassis Mount | Quick Connect | Quick Connect | EMC Series | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
FN2010-1-06
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1191358 |
Power Line Filter, Chassis, General Purpose, 250 VAC, 1 A, Single Phase, 1 Stage, Chassis Mount SCHAFFNER - TE CONNECTIVITY
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- | General Purpose | - | - | Single Phase | - | 1 Stage | - | Chassis Mount | Quick Connect | Quick Connect | - | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
FN2060-16-06
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1191381 |
Power Line Filter, General Purpose, 250 VAC, 16 A, Single Phase, 2 Stage, Chassis Mount SCHAFFNER - TE CONNECTIVITY
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- | General Purpose | 250VAC | 16A | Single Phase | - | 2 Stage | - | Chassis Mount | Quick Connect | Quick Connect | FN 2060 Series | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
FN2090-4-06
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1304857 |
Power Line Filter, Chassis, General Purpose, 250 VAC, 4 A, Single Phase, 2 Stage, Chassis Mount SCHAFFNER - TE CONNECTIVITY
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FN2030-10-06
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1304846 |
Power Line Filter, Chassis, General Purpose, 250 V, 10 A, Single Phase, 1 Stage, Chassis Mount SCHAFFNER - TE CONNECTIVITY
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- | General Purpose | 250V | 10A | Single Phase | - | 1 Stage | - | Chassis Mount | Quick Connect | Quick Connect | FN 2030 Series | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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FN2090-6-06
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1304858 |
Power Line Filter, Chassis, General Purpose, 250 VAC, 6 A, Single Phase, 2 Stage, Chassis Mount SCHAFFNER - TE CONNECTIVITY
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FN2010-6-06
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1191364 |
Power Line Filter, Chassis, General Purpose, 250 VAC, 6 A, Single Phase, 1 Stage, Chassis Mount SCHAFFNER - TE CONNECTIVITY
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FN2060-10-06
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1191375 |
Power Line Filter, Chassis, General Purpose, 250 VAC, 11.5 A, Single Phase, 2 Stage, Chassis Mount SCHAFFNER - TE CONNECTIVITY
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FN2030-30-08
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1304849 |
Power Line Filter, Chassis, General Purpose, 250 V, 30 A, Single Phase, 1 Stage, Chassis Mount SCHAFFNER - TE CONNECTIVITY
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- | General Purpose | - | - | Single Phase | - | 1 Stage | - | Chassis Mount | Stud | Stud | - | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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NFE61PT472C1H9L
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9528229 |
Power Line Filter, EMIFIL, 50 VDC, 2 A, 4700 pF, 1000 Mohm MURATA
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- | General Purpose | 50VDC | 2A | - | - | 1 Stage | - | Surface Mount | SMD | SMD | EMIFIL NFE61PT Series | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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FN406-6-02
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1191339 |
Power Line Filter, General Purpose, 250 VAC, 6 A, Single Phase, 1 Stage, Through Hole SCHAFFNER - TE CONNECTIVITY
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- | General Purpose | 250VAC | 6A | Single Phase | - | 1 Stage | - | Through Hole | - | - | FN 406 Series | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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FN2010-10-06
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1191360 |
Power Line Filter, Chassis, General Purpose, 250 VAC, 10 A, Single Phase, 1 Stage, Chassis Mount SCHAFFNER - TE CONNECTIVITY
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- | General Purpose | 250VAC | 10A | Single Phase | - | 1 Stage | - | Chassis Mount | Quick Connect | Quick Connect | FN 2010 Series | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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2499-508-X5W0-502Z
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1834832 |
Power Line Filter, General Purpose, 250 VAC, 20 A, Chassis Mount CTS / TUSONIX
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- | General Purpose | - | - | - | - | - | - | Chassis Mount | Wire Leaded | Wire Leaded | - | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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FN3256H-16-29
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2134565 |
Power Line Filter, Chassis, General Purpose, 520 VAC, 16 A, Three Phase, 1 Stage, Chassis Mount SCHAFFNER - TE CONNECTIVITY
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- | General Purpose | - | - | Three Phase | - | 1 Stage | - | Chassis Mount | Terminal Block | Terminal Block | - | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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BNX022-01L
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1114996 |
Power Line Filter, EMIFIL, 50 V, 10 A MURATA POWER SOLUTIONS
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- | - | - | 10A | - | - | 2 Stage | - | - | - | - | EMIFIL BNX Series | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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FN2010-3-06
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1191363 |
Power Line Filter, Chassis, General Purpose, 250 VAC, 3 A, Single Phase, 1 Stage, Chassis Mount SCHAFFNER - TE CONNECTIVITY
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- | General Purpose | - | - | Single Phase | - | 1 Stage | - | Chassis Mount | Quick Connect | Quick Connect | - | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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20EMC1
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9586490 |
Power Line Filter, General Purpose, 250 VAC, 20 A, Single Phase, 2 Stage, Chassis Mount CORCOM - TE CONNECTIVITY
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- | General Purpose | 250VAC | 20A | Single Phase | - | 2 Stage | - | Chassis Mount | Quick Connect | Quick Connect | EMC Series | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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BNX023-01L
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1769693 |
Power Line Filter, Amusement Equipment, Displays, Digital AV Equipment, PC Peripheral Equipment MURATA
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- | Amusement Equipment, Displays, Digital AV Equipment, PC Peripheral Equipment | 100V | 15A | - | - | 2 Stage | - | Surface Mount | SMD | SMD | EMIFIL BNX Series | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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BNX026H01L
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2473625 |
Power Line Filter, Amusement Equipment, Displays, Digital AV Equipment, PC Peripheral Equipment MURATA
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- | Amusement Equipment, Displays, Digital AV Equipment, PC Peripheral Equipment | 50VDC | 15A | - | - | 2 Stage | - | Surface Mount | SMD | SMD | EMIFIL BNX Series | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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NFE31PT222Z1E9L
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9528172 |
Power Line Filter, 2200 pF, 50 %, 25 V, 6 A, SMD MURATA
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- | General Purpose | 25V | 6A | - | - | 1 Stage | - | Surface Mount | SMD | SMD | EMIFIL NFE31PT Series | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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FN3025HL-30-71
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2785435 |
Power Line Filter, DIN Rail, EM/RFI, General Purpose, 520 VAC, 30 A, Three Phase, 1 Stage SCHAFFNER - TE CONNECTIVITY
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- | General Purpose | - | - | Three Phase | - | 1 Stage | - | Chassis Mount | Terminal Block | Terminal Block | - | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() |
FN355-20-03
![]() |
2785426 |
Power Line Filter, EMC/EMI, General Purpose, 440 VAC, 20 A, Three Phase, 1 Stage, Chassis Mount SCHAFFNER - TE CONNECTIVITY
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B84111A0000A020
![]() |
3408869 |
Power Line Filter, General Purpose, 250 VAC, 2 A, Single Phase, 1 Stage, Chassis Mount EPCOS
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- | General Purpose | 250VAC | 2A | Single Phase | - | 1 Stage | - | Chassis Mount | Quick Connect | Quick Connect | B84111A Series | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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B84112G0000M110
![]() |
3296522 |
Power Line Filter, Medical, 250 VAC, 10 A, Single Phase, 1 Stage, Chassis Mount EPCOS
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- | Medical | 250VAC | 10A | Single Phase | - | 1 Stage | - | Chassis Mount | Quick Connect | Quick Connect | B84112G Series |