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Noise Filters

noise_filters3The interference or electronic “noise” generated by alternators, ignition systems, motors, etc., can render a vehicle or vessel’s radio or other electronic equipment virtually useless. This interference takes the form of popping or static on radios or audio gear and garbled images or “hash” on video displays.

These specialized filters can be used singly or in combination to attenuate conducted line noise, either at the affected equipment or at the noise source.


  • Heavy duty aluminum construction
  • Operate on 6-48 VDC systems
  • Integral mounting flanges for secure installation
  • Nickle plated, brass stud connectors on alternator filters accommodate high current cables and terminals
  • Color coded wire leads on PC models make in-line installation easy

Filtered Frequencies

Model 150A: 70 kHz – 100 MHz

Models PC-10 and PC-25: Audio – 200 MHz

Model Rating Installation Location Dimensions (Inches) Weight (Lbs.)
150-A 150 Amp At alternator 3.25 x 5.75 x 3.25 3
PC-10 10 Amp At affected equipment in “+” and “-” leads 1.25 x 4.25 x 3 1
PC-25 25 Amp At affected equipment in “+” and “-” leads 2 x 4.25 x 3.25 2