Choosing Capacitors for High Voltage and/or High Power applications :

  • By capacitor functions, as different capacitor function needs different electrical and mechanical parameters.
  • Voltage : AC, DC, DC+AC, Pulse Voltage (peak-to-peak range), with different voltage and frequency combination, the capacitor will have a very different current requirement.
  • Capacitance
  • The Capacitor Current :
        i. RMS Current Irms
        ii. Pulse / Peak / Peak-to-Peak discharge Curren
    t
        iii. dv/dt
  • Both Reversal Current and Voltage has to taken into account.
  • Capacitor Ambient Temperature, Capacitor Connection, Capacitor Installation and Capacitor size.
  • Most of the Power Electronic Capacitors and High Voltage Capacitors listed below can withstand +105C.
  • There are more Capacitor Configurations for your consideration.

 Capacitor type

Type

Function / Application

Capacitance range

Voltage range

max. ripple Current

max. VAR / dv/dt

Capacitor Configurations

High Current Capacitors - Continuous Duty - AC Voltage
High AC Current Capacitors

LC1-AN
LC2-AN
LC3-AN

Continuous AC Current, Resonant, Tank, Coupling applications; support up to +105C
0.025uF - 100uF 125Vrms - 1400Vrms 250A  80kVAR  
High AC Current Capacitors

LC2-RNM
LC3-RNM

Continuous AC Current, Resonant, Tank, Coupling applications; support up to +105C 3uF - 47uF 250Vrms - 450Vrms 240A  65kVAR  
High AC Current Capacitors - Box type LC1-BN
LC2-BN
LC3-BN
Continuous AC Current, Resonant, Tank, Coupling applications; support up to +85C
Customized Customized 250A Customized  
High Voltage Film Capacitors - AC / DC / Pulse Voltage
High Voltage Pulse Capacitors
High Voltage Energy Discharge Capacitors

STHVP
STHVE

High Voltage High Pulse Current, Energy Discharge, High Voltage Resonant Circuits, Medium Frequency, support High RMS Current up to +105C 0.033uF - 1.0uF 2,500Vdc - 23,000Vdc / 1,000Vac - 7,000Vac 95A 11,000 v/us
High Voltage Filter Capacitors STHVF High Voltage Filtering, Coupling, Decoupling, Surge Protection, support up to +105C 0.05uF - 15uF 1,700Vdc - 25kVdc / 650Vac - 6kVac 100A 18,500 v/us

High Voltage Filter Capacitors - axial leads
High Voltage Energy Discharge Capacitors - axial leads

STHVF-A
STHVE-A
High Voltage Filtering, Coupling, Decoupling and High Voltage Surge Protection; support up to +85C
0.075uF -0.25uF 4kVdc - 8kVdc / 1,800Vac - 3kVac 11A 4,700 v/us

Snubber Capacitors - AC / DC Voltage

GTO Capacitors

STG

GTO protection, high pulse current,

Resonance Circuits, support High RMS Current at +105C

0.15uF - 220uF

400Vdc - 5,800Vdc /

160Vrms - 2,000Vrms

85A

7,000 v/us

Snubber Capacitors

STP-01R

Snubber, Commutation, Clamping, Damping & high RMS current up to +85C

0.1uF - 1.5uF

1,000Vdc - 2,600Vdc /

660Vac - 1,100Vac

16A

1,500 v/us

High Voltage Snubber Capacitors

STP-01RB

STP-01RN

Snubber, Commutation, Clamping, Damping & high RMS current; support +105C

0.25uF - 60uF

900Vdc - 5,30Vdc /

280Vrms - 1,600Vrms

80A

7,000 v/us

High Voltage Snubber Capacitors

STP-01RAN

STP-01RFN

STP-01RFB

Snubber, Commutation, Clamping, Damping & high RMS current; support +105C 0.1uF - 15uF 1,200Vdc - 17kVdc / 350Vrms - 6,900Vrms 100A 4,000 v/us

IGBT Capacitors

SMKP2

IGBT protection, Snubber and support high RMS current up to +105C application

0.1uF - 3uF

1,000Vdc - 2,000Vdc /

500Vac - 650Vac

32A

1,100 v/us

High dv/dt Axial Lead Film Capacitors

STP-01Q  STP-01QE

high dv/dt, axial lead design,

Snubber, DC Capacitor, MMC Capacitors; support up to +85C

0.01uF - 4.7uF

600Vdc - 3,000Vdc /

275Vac - 750Vac

20A

2,568 v/us

Other Power Electronic Capacitors - AC / DC / Pulse Voltage

AC/DC Power Film Capacitors / AC/DC Filter Capacitors

ACF

General purpose AC Power Electronics, inverter, Switching, AC/DC Filtering, support High RMS Current; supports up to +105C

0.68uF - 300uF

 

250Vac - 900Vac / 

400Vdc - 1,350Vdc

 

 100A

1500 v/us

  

Pulse Current Capacitors / DC Filter Capacitors

DCF-03

DC Filtering,  Pulse Current, Resonant Circuit  application, DC Capacitor,

MMC Capacitors, High Pulse Current up to +85C

1uF - 30uF

100Vdc - 400Vdc / 70Vac - 250Vac

30A

22v/us

Pulse Current Capacitors / DC Filter Capacitors

DCF-04

DC Filtering,  Pulse Current, Resonant Circuit  application, DC Capacitor,

MMC Capacitors, High Pulse Current up to +85C

0.68uF - 30uF

250Vdc - 700Vdc / 160Vac - 400Vac

13A

138 v/us

Energy discharge Capacitors / Pulse Grade Capacitors

STP-02R

Energy and pulse Current Discharge at low repetition rate

0.1uF - 200uF

400Vdc - 1,600Vdc

-

45v/us

Energy Discharge Capacitors / Pulse Grade Capacitors

STP-02RM

Energy and pulse Current Discharge at low repetition rate (smaller size version of STP-02R)

4uF - 50uF

400Vdc - 1,200V peak

-

43v/us

Energy Discharge Capacitors / Pulse Grade Capacitors

STP-02QT STP-02QL

Energy and pulse Current application,

MMC Capacitors

2uF - 20uF

450Vdc - 600Vdc / 280Vac - 330Vac

15A

100 v/us

Motor Capacitors STR Motor Run Capacitor, AC Filtering 2.5uF - 100uF 250Vac - 650Vac - -
Motor Capacitors STA STB Motor Run Capacitor 1uF - 35uF 250Vac - 450Vac - -

For any Capacitor function, Voltage(Vdc, Vac, Vrms, Vpulse, Vsurge), Capacitance, RMS current, Pulse Current, dv/dt and Capacitor Configurations is not in the above; please feel free to contact us. We might have a solution for you.

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