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Our capacitors have been used in F1 by Mercedes HPC.
High performance power capacitors. We operate an ISO9001 quality management
system and have an established reputation for technical excellence,
quality and reliability.
Our capacitors transport you to work on time
Our capacitors are used by CERN on the large hadron collider (LHC).
Our capacitors have kept trains running on London's Underground for 25 years.
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![Royal Navy client logo](https://www.api-capacitors.com/wp-content/uploads/2022/05/cli6.png)
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API Capacitors is the UK’s leading designer and manufacturer of high quality power capacitors for power electronic applications.
Our extensive product range of filter capacitors, snubber capacitors and energy storage capacitors service the professional markets of rail traction, industrial drives, power conditioning and avionics, together with discharge capacitors for medical, plasma and pulsed power applications. The strength of the company lies in working alongside its customers, tailoring the product correctly to its specific application so it performs exactly as required with total reliability.
![](https://www.api-capacitors.com/wp-content/uploads/2024/08/Electric-Vehicle-Image-Freepik-e1724161662778.png)
Automotive & Avionics
![Electric Ship](https://www.api-capacitors.com/wp-content/uploads/2024/08/Electric-Boat-Image-3-e1724160187695.png)
Marine Propulsion
API Capacitors Ltd has supplied capacitors for use in a variety of demanding marine applications right from its early existence back in the 1980s.