Precision Capacitors for High-Voltage Performance
Trusted by engineers worldwide for reliability, customisation,
and performance across demanding applications.
Manufactured in Northern Ireland since 1967
For over five decades, Hivolt Capacitors has been the trusted partner for OEMs, engineers, and innovators seeking high voltage capacitor solutions that deliver uncompromising quality and precision.
- Custom engineering tailored to demanding applications
- Manufacturing excellence backed by deep technical expertise
- Consistent performance across life critical environments
From lifesaving MRI and Radiotherapy to Ground Radar in defence, Power Supply Units in Semiconductor plants, Battery Storage in energy infrastructure, and industrial processing – our capacitors are designed to perform reliably, year after year.
Our ethos is Engineered Reliability. Lifelong Performance. This is testament that we don’t just supply components. We collaborate, guide, and solve, ensuring every capacitor meets the highest standards of safety, compliance, and durability.
Key Value Propositions
1967
Founded in 1967, building on decades of capacitor design expertise.
500,000
Over 500,000 capacitors manufactured and supplied worldwide.
Value
Added
End to End
Solution
Expert support from conceptual design to production volumes.
Bespoke
Products
Customised designs for sector specific needs.
Quality Manufacturing
European based manufacturing with
global reach
Engineered Reliability. Lifelong Performance.
Unmatched performance, precision engineering, and a reputation built on trust. For over three decades, Hivolt has been the partner of choice for engineers and innovators who demand uncompromising quality.
Our capacitors deliver proven reliability across medical, defence, aerospace, and industrial sectors supported by expert technical guidance and UK-based manufacturing excellence.
Trusted By
Case Studies
SPECIAL CAPACITORS – Pulse Forming Network
Eight custom design PPR type capacitors are assembled into the pulse forming network of a line-type modulator that generates HV pulses to drive a microwave magnetron.
The Pulse Forming Network is built into radiotherapy equipment for cancer treatment.
Supplied to Elekta Limited, England
PMR TYPE – Tinplate Soldered Body Construction
Capacitor rating 15kV dc, 2uF.
This PMR capacitor is fitted with an internal discharge resistor and used in the power supply for laser cutting equipment.
Supplied to Vishay GmbH, Germany