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UK’s leading designer and manufacturer of high quality power capacitors
High performance power capacitors.
Capacitors used in Eurostar
Our capacitors are used by CERN on the large hadron collider
 Our capacitors are bing used in trains running on London's Underground for 25 years.
apiban4
Innovative, proven, reliable & trusted.

Our capacitors have been used in F1 by Mercedes HPC.

apiban4
Our capacitors are used in the Royal Navy's electric propulsion drives.

High performance power capacitors. We operate an ISO9001 quality management
system and have an established reputation for technical excellence,
quality and reliability.

apiban4
Our capacitors help power all Eurostar cars.

Our capacitors transport you to work on time

apiban4
Innovative, proven, reliable & trusted.

Our capacitors are used by CERN on the large hadron collider (LHC).

apiban4
Our capacitors have kept trains running on London's Underground for 25 years.

Our capacitors have kept trains running on London's Underground for 25 years.

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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.