Fairview, Pa. Spectrum Control, Inc. offers commercial off-the-shelf (COTS) single-line feed-thru EMI filters that are the commercial equivalent to M15733-PRF/72, M15733-PRF/73, and M15733-PRF/74 specs. These filters meet all QPL requirements and are UL and Semko approved.
The COTS single-line feed-thru filters are offered in both AC and DC models that are suitable for the military and aerospace industries. Custom options are available for both models.
The commercial equivalent high-current feed-thru series filters up to 500 amps with an attenuation of 4-90 dB from 1 MHz to 1 GHz. They are offered with voltage ratings of 130 Vdc and 250 Vac. The DC models feature C and Pi configurations with Class Y4 capacitors and the AC models provide C and Pi configurations with Class Y2 capacitors. Both the AC and DC series feature a rugged bolt-in style with a D-shaped bushing for easy installation.
Pricing: Ranges from $100 to $150 depending on configuration and quantities required.
Spectrum Control, 1-814-474-0402, www.specemc.com