High Voltage Ceramic Capacitors10kV to 50kV

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Our DXU range of High Voltage Ceramic Capacitors offer output voltages from 10kV up to 50kV to meet the most stringent requirements of high voltage applications.

Also known as doorknob capacitors, Genvolt high voltage ceramic capacitors are made from a ceramic dielectric and are then encapsulated in epoxy resin. The terminal threads on the capacitors are either M4 or M5, depending on model, with a thread depth of 4mm.

They are designed for applications which require a low dissipation factor and a small voltage coefficient, have excellent temperature characteristics, low partial discharge and a large capacitance.

HV Capacitor Features;

  • Small size
  • Low dissipation factor
  • Epoxy resin encapsulated
  • Low DC, AC - voltage coefficient
  • Excellent voltage characteristics
  • Linear temperature characteristic
  • Excellent behaviour on pulse and fast discharge

HV Capacitor Applications

  • Gas laser
  • Power generators
  • High voltage dividers
  • High voltage coupling devices
  • Electrostatic coating machines
  • Electron microscopes, synchroscopes
  • Direct current high voltage power supplies
  • Lightning arresters, voltage distribution systems
  • Power line coupling system for internet and telecom

General Specification

Part No. Capacitance (pf) Capacitance
Tolerance %
DC Rated Voltage (kV) Dimensions Terminal Type
Thread & Depth
D L H
DXU-10-561 560 ± 10 10 24 20 18 M4x4mm
DXU-10-122 1200 ± 10 10 30 20 18 M4x4mm
DXU-10-282 2800 ± 10 10 40 20 18 M5x4mm
DXU-10-502 5000 ± 10 10 52 20 18 M5x4mm
DXU-10-802 8000 ± 10 10 60 16 14 M5x4mm
DXU-20-281 280 ± 10 20 24 26 24 M4x4mm
DXU-20-881 880 ± 10 20 30 26 24 M4x4mm
DXU-20-142 1400 ± 10 20 40 26 24 M4x4mm
DXU-20-252 2500 ± 10 20 52 26 24 M5x4mm
DXU-20-402 4000 ± 10 20 60 26 24 M5x4mm
DXU-30-591 590 ± 10 30 30 30 28 M4x4mm
DXU-30-941 940 ± 10 30 40 30 28 M5x4mm
DXU-30-172 1700 ± 10 30 52 30 28 M5x4mm
DXU-30-272 2700 ± 10 30 60 30 28 M5x4mm
DXU-40-441 440 ± 10 40 30 32 30 M4x4mm
DXU-40-701 700 ± 10 40 40 32 30 M5x4mm
DXU-40-132 1300 ± 10 40 52 32 30 M5x4mm
DXU-40-202 2000 ± 10 40 60 32 28 M5x5mm
DXU-50-401 400 ± 10 50 30 35 33 M4x4mm
DXU-50-651 650 ± 10 50 36 35 33 M4x4mm
DXU-50-911 910 ± 10 50 40 33 31 M4x4mm
DXU-50-112 1100 ± 10 50 52 35 33 M5x4mm
DXU-50-172 1700 ± 10 50 59 35 33 M5x4mm

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