We are… innovative, proven, reliable and trusted.

API Capacitors are the UK’s leading designer and manufacturer of high quality power capacitors for power electronic applications.

Our extensive range of filter, snubber and energy storage capacitors services the professional markets of tractionindustrial drivespower conditioning and avionics, together with discharge capacitors for medical, plasma and pulsed power applications. Our customer base includes all the major European and North American blue chip companies involved in the power electronic sector.

capacitors used for rail

The strength of our company lies in working alongside our customers to understand their requirements, tailoring the product correctly to specific applications. This ensures that all of our products perform exactly as required with total reliability.

We operate a full ISO9001 quality system and are members of the Railway Industry Association (RIA).

API Capacitors is not a standard capacitor provider – we provide an engineered solution and have a full R&D and rapid prototyping capability to allow us to provide speedy, cost effective application specific solutions for product development and obsolescence situations. In addition if you choose API Capacitors as your partner your custom design will not be sold to others.

Sectors we create capacitors for

API Capacitors Ltd is part of the API Group:


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