Common Mode Noise Filter - AC or DC Power

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25-AMP (Peak) IN-LINE ELECTRONIC FILTER for 12 VOLTS DC, AUTOMOTIVE, RV RFI, ALTERNATOR, PULSE NOISE SUPPRESSION

SKU RFI-N700

$49.95

30-AMP (PEAK) IN-LINE TOROIDAL DC NOISE FILTER for 12 VOLTS, ALTERNATOR, PULSE NOISE SUPPRESSION

SKU RFI-N25

$34.95

AC Power Cord Choke + Power Cord- 120VAC RFI Range: 1-30 MHz, -28 dB Noise Reduction, 15 Amp

SKU AC-CHOKE-6

$19.95

AC/DC Generator RFI Noise Filter Kit - 3" ID - 2 filters

SKU RFI-GEN-3

$74.95

AC/DC Generator RFI Noise Filter Kit = 1" ID - 2 filters

SKU RFI-GEN-1

$39.00

Big Clamp On RFI Noise Filter for AC/DC power lines, Coax/Multi-wire cable - 1" ID

SKU BCO31

$19.95

DC Cable Noise Filter for 2 Gauge and Smaller Wire - 1.4" ID

SKU DCCF-1.4

$12.95

DC Cable Noise Filter for Large Gauge Wire - 3" ID

SKU DCCF-3

$39.95

On Sale

DC Voltage Common Mode Noise Filter - Marine, RV, Communications, 600 Volts/30 Amps

SKU RFI-DC-30

List price ~~$109.95~~

Save 18%

$89.95

DC-AC Inverter Common Mode RFI/Noise Filter Kit for DC in and AC Output

SKU RFI-INVERTER

$34.95

F240-31, ID=1.4", AC/DC/Coax Noise Filter, RFI Range 1-300 MHz, AKA FT240-31

SKU F240-31-1

$9.99

On Sale

FSB31-1, ID=1", RFI Range 1-300 MHz, Bulk Pack of 10

SKU FSB31-1-10

List price ~~$195.00~~

Save 13%

$169.50

On Sale

FSB31-1, ID=1", RFI Range 1-300 MHz, Bulk Pack of 3

SKU FSB31-1-3

List price ~~$58.50~~

Save 15%

$49.95

FSB31-1, ID=1", RFI Range 1-300 MHz, Case of 36 Pieces, FREE USA SHIPPING

SKU FSB31-1-36

$550.00

FSB31-1-1, ID=1", RFI Range 1-300 MHz

SKU FSB31-1-1

$19.95

On Sale

FSB31-1.5, ID=1.465", RFI Range 1-300 MHz

SKU FSB31-1.5-1

List price ~~$69.50~~

Save 28%

$49.95

On Sale

FT240-3I, ID=1.4", AC/DC/Coax Noise Filter, RFI Range 1-300 MHz, Bulk Pack of 10

SKU F240-31-10

List price ~~$100.00~~

Save 10%

$89.95

On Sale

FT240-3I, ID=1.4", AC/DC/Coax Noise Filter, RFI Range 1-300 MHz, Case of 100

SKU F240-31-100

List price ~~$1,000.00~~

Save 21%

$795.00

On Sale

FT240-3I, ID=1.4", AC/DC/Coax Noise Filter, RFI Range 1-300 MHz, Mini Pack of 3

SKU F240-31-3

List price ~~$34.95~~

Save 14%

$29.95

Power Pole DC Power Cord RFI/Noise Filter - up to 30dB Noise Reduction, 45 Amp Connectors

SKU PPNF-3

$34.95

RFI Common Mode Noise Filter Kits for FLEX RADIO Antenna Genius Antenna Switches - Isolate Non-Selected Coax Braid Noise!

Suppress Unwanted Noise & RFI

SKU RFI-AS-FLEX-2

$179.95

Solar RFI/Noise Filter - 1.5" ID

SKU SNF-1.5

$49.50

Switch Mode Power Supply (SMPS) Common Mode RFI/Noise Reduction Filter Kit

SKU RFI-SMPS

$27.95

Wall Wart RFI Noise Filter Bulk Pack of 10 Filters

SKU RFI-WW-10

$29.95

Wall Wart RFI Noise Filter Bulk Pack of 100 filters

SKU RFI-WW-100

$199.95

Wall Wart RFI Noise Filter Pack (5 filters)

SKU RFI-WW-5

$16.95

These RFI kits are specifically selected to cure most household computer device RFI problems. It contains ferrite toroids for AC or DC power supply protection and Snap On ferrite spli beads selected to eliminate RFI from 1 to 1000 Mhz. The beads are easy to use, don’t require modification of the protected equipment and work in almost all cases, even when plug-in filters fail.

Typical Installations


Ethernet Cable on F-240 Toroid – 7 turns	Ethernet Cable on FSB-1/2 – 3 turns for 9X Impedance	Ethernet Cable on FSB-1/4
AC Cable on F-240 Toroid – 6 turns	DSL Modem DC Power Supply on F114-43 Toroid – 5 Turns