Power Silicon Modules

Power Modules typical are devices with 2 to 6 elements within the same package to make up a standard curcuit

  • Voltages: 600 volts to 1800 volts.
  • Currents: 25 amps to 320 amps.
  • Circuits: Doublers. Center Taps, Single Phase Bridges, 3 Phase Bridge with combinations of Diode/ Diode, Diode/ SCR, and SCR/ SCR.
  • Standard and Fast Recovery.


  • Voltages: 50 volts to 1600 volts
  • Currents: 1 amp to 250 amps
  • Circuits: Single Phase and Three Phase with uncontrolled, half controlled and fully controlled.
  • Standard and Fast Recovery.
  • Terminations: Plug in, Fast on, Screw type, Axial and Radial leads.
  • Mounting: PCB, Octal Plug In, Single Hole and Double hole screw mounting.
Silicon Power Modules
Cougar is a stocking distributor of Powersem Power Products and a manufacturer of special power products and bridge rectifiers.
We can supply the following types:
• Ultrafast Epitaxial Diode Modules
• Fast Recovery Epitaxial Diodes
• Diode Modules
• Thyristor / Diode Modules
• Thyristor Modules
• Active Trigger Units for Thyristors
• Single and Three Phase Rectifier Bridges
• Single and Three Phase Half Controlled Rectifier Bridges
• Single and Three Phase Half Controlled with Freewheeling Diode
• Single and Three Phase Full Controlled Rectifier Bridges
• Single and Three Phase Full Controlled with Freewheeling Diode
• Single and Three Phase Bridges with Fast Recovery Epitaxial Diodes
• Single and Three Phase AC Controller Modules
• Single and Three Phase AC Controller Subassemblies
• Rectifier Bridge for Power Factor Correction
• Trench Gate IGBT Modules
• ECO-PAC 2, ECO-Top 1, IGBT Modules
• Rectifier Bridge for Braking Systems
• ECO-PAC 1 IGBT Modules
• MosFet Modules
• Solid State Relays
• Single and Three Phase Solid State Relays
• DIN Ready Solid State Relay
Please contact us for any of your applications. Data Sheets are available at the following:

If you have any question, don't hesitate to contact us:

Cougar Electronics Corp. | 10 Lyman Street, New Haven, CT 06511 | Phone: (203) 562-6545 Fax: (203) 562-6748

Power Silicon Modules

The technology

Selenium rectifiers and suppressors are still used in the industry for their strong reliablity. This technology has been mainly replaced by silicon diodes, providing a better efficiency and lower voltage drop. Selenium components are very interesting for their reliability. Those components have the ability to recover after surge failure, which make them excellent for security applications. COUGAR ELECTRONICS has been one of the leading company in the 50's. We are the last firm still manufacturing parts made in USA thanks to our CT factory.

Elevator industry, Military and power generation

Despite most of our business is now focused on up to date semionductors like silicon diode, thysirtors, IGBT and SiC, our manufacturing department is serving elevator industry (otis, schindler, kone, thyssen krupp). We also serve specific fields like military or power generation application .

Service and Fast delivery

Our excellence in organisation, allow us to serve after-sales service with exceptional fast deliveries :
  • same day shipping
  • next day shipping

Looking for a part, call us !

If you look for a specific part number, or even if you do not have part number. Do not hesitate to call us. We build and design any type of selenium rectifier or selenium suppressor. Do not give up, thinking these components are impossible to find. We are here to help ! [caption id="attachment_2376" align="alignnone" width="282"]selenium rectifier selenium rectifier[/caption] [caption id="attachment_2370" align="alignnone" width="297"]Selenium7 Rectifier 3 phases[/caption] [caption id="attachment_2369" align="alignnone" width="210"]Selenium Suppressor Surge Suppressor[/caption]

Troubleshooting a selenium rectifier or suppressor

Our customer service will be happy to help you to determine what's the best solution.

Find parameters for rectifiers :

  • Voltages: Standard Voltages per cell up to 36 v rms. The voltage rating is determined by the number of cells in series
  • Current: Ratings are determined by the size of the cell or the number of cells in parallel. The circuit configuration and the type of cooling are also important factor to consider.
  • Circuits: Half wave, Doublers, Center Taps, Full Wave Bridges, single and three phase.

Find parameters for suppressors :

  • Ratings: Determined by the cell size and number of cells in a series (similar to rectifiers above).
  • Suppressors are also rated by the voltage clamping factor and the amount of reverse energy they can absorb (in joules).

More information about our product

[embed]https://cougarelectronics.com/cougar-electronics/power-conversion-components/selenium-rectifier-suppressor/#[/embed] https://en.wikipedia.org/wiki/Selenium_rectifier