Resin Sealed Bolt-in Filters

API Technologies
Part Number Information
Part #: Price/Availability:
SCI Buy Now
9900 Buy Now
51-7 Buy Now
547 Buy Now
5486 Buy Now
54-8 Buy Now
54-7 Buy Now

These filters are easily mounted in a tapped hole or thru-hole with supplied nut and lock-washer. The rugged case with resin seals at both ends provides excellent environmental protection. Primarily used in filtering signal/data lines and DC power lines.


• Wide range of sizes: 4-40 thread through 5/16-24 thread
• Voltage ratings to 500 VDC/220 VAC (400 Hz)
• MIL-F-15733 QPL filters available
• Multiple circuit configurations: C, L and Pi
• Metric threaded filters available, consult factory


• Signal/data lines
• DC power lines