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We have 3 series of High Voltage Film Capacitors.

All our high voltage capacitors are plastic encased and dry film construction. For the advantage, please refer to Tech Consideration.

High Voltage Filter Capacitors : STHVF

  • STHVF : with screw Nut at Capacitor both Ends

  • High Voltage DC / AC Filtering, Bypass, Coupling and Decoupling application

  • High Voltage Surge Protection - High Voltage Surge Capacitor

  • High voltage capacitor bank or array

  • Voltage Multiplier

  • High Voltage Power Supplies

  • Induction heating

  • Capacitance : 0.025uF - 1uF

    Voltage range : 6000Vdc - 30,000Vdc

                           1350Vac - 6500Vac

    dv/dt range up to 18500v/us

    RMS Current - Irms : up to 65Arms

    Testing Voltage : Terminal to Terminal :

                            Vdc < 20kVdc : 2.15 x Vn 60s at 105C

                                  >=20kVdc : 1.75 x Vn 60s at 105C

                            Vac : 1.75 x Vn 60s at 105C

    Accelerated Life test : 1.25 x Vdc or Vac 105C for 2000hours

    Temperature range : -20C - +70C / -20C - +85C / -40C - +105C

    low ESR and low inductance

  • STHVF-A : Copper Lead at Capacitor both Ends ( Axial Lead )

  • Rated Voltage :

    Vdc 4000 6000 8000 10000 10000 12000 15000 20000
    Vac 1800 2500 3000 3500 4000 4500 5500 6500
  • Capacitance range : 0.025uF - 0.82uF

  • Temperature range : -20C - +70C / -25C - +85C / -40C - +105C

  • maximum ripple Current Irms up to 10A


High Voltage Pulse Capacitors : STHVP

  • High Voltage Pulse Energy and Current Discharge application

  • medium Frequency range and RMS Current rating

  • High Voltage DC / AC Voltage application

  • Capacitor can be discharged at rated voltage directly without any protective component even at 105C

  • High Voltage Decoupling and Snubbering

  • Voltage Multiplier

  • Induction heating

  • act as discharge capacitor to trigger laser, X-Ray and Tesla Coil

  • for high voltage capacitor bank or array

  • High Voltage Power Supplies

  • Capacitance : 0.033uF - 2.2uF

    Voltage range :

    5000Vdc to 20,000Vdc / 2000Vac to 5500Vac

    RMS Current - Irms : up to 65Arms

    Maximum dv/dt : up to 14500v/us

    peak discharge current - I peak : up to 4000A

    Testing Voltage : 1.3 x Un 10sec (can be customized design)

    Temperature range : -20C to +70C

                                    -20C to +85C

                                    -40C to +105C

    low ESR and low inductance

Advantage over traditional Paper dielectric, Oil impregnated and Metal Enclosure Capacitors :

     o Plastic Enclosure and Epoxy Resin : Flame Retardant UL94-V0

     o high voltage with RMS Current capacity

     o lower ESR

     o compact size and light weight

     o safer - Plastic enclosure

     o higher Insulation Resistance and Insulation Voltage

     o dry construction, don't have the impregnant leakage problem

     o temperature range up to 105C


We manufacture High Voltage Power Film Capacitors for wide variety of Power Electronic applications with different rated Capacitances, Voltages, Discharge Energy, dv/dt, Pulse Discharge Currents, max. RMS Currents, Frequency ranges, size restriction, temperature ranges and even capacitor configurations.

Different application has different capacitor electrical performance and mechanical requirements, please feel free to send the details for a suggestion and quotation.

There are some other capacitor package configurations and capacitor photos available for your consideration.

Also support Axial Leads High Voltage Film Capacitors.

For voltage below 5,000Vdc, please refer to Snubber Capacitors, GTO Capacitors and IGBT Capacitors.

For voltage below 1600Vdc, please refer to Energy Discharge Capacitors.

We accept small quantity order for these series capacitors.

Feel free to contact us for details.

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