OEP’s ability to manufacture subcomponents in-house (particularly via flexible processes like CNC machining) enables us to produce highly customized assemblies with short lead times at low cost. We’ve produced several capacitors that don’t fit into any of our standard configurations, some built to a customer’s specs, some developed jointly with customers, and others engineered by OEP to perform electrically and mechanically to a customer’s requirements.

Some of these customized caps have been air variables made as a drop-in replacement for other manufacturers’ capacitors, matching them dimensionally and electrically. Others have been more radical departures from our standard line; they’ve included fixed air capacitors, fixed teflon©-dielectric caps, screw-type air-dielectric trimmer caps, several screw-type teflon©-dielectric trimmer caps, pressurized-gas-dielectric variable capacitors, and liquid-dielectric variable capacitors.

Examples of Custom Capacitors

By CNC machining aluminum frames and Ultem insulators, we combined our APL configuration with a precision instrument bearing to match the dimensions and performance specs of an obsolete European condenser.

By modifying both materials and design, we were able to manufacture this high-temperature non-magnetic M73 with a service temperature of over 300 degrees C.

This non-magnetic M73 with Ultem endplates served not only as a replacement, but as a radical improvement (in terms of reliability, bearing life, and consistent long-term performance) for a 500pF-per-section two-section cap made in the UK.

Machined Ultem endplates enabled us to produce an M73 with a minimum capacitance 8pF smaller than usual.

When a prominent capacitor manufacturer in the UK abruptly went out of business, OEP kept their customers in business by providing them with caps with metric insulating mounting pillars, drop-in replacements for the original units.