Dynex Semiconductor Ltd.
Dynex Semiconductor is a manufacturer of power semiconductors. Products include; IGBTs, SCRs, GTO Thyristors, Fast Recovery and Rectifier diodes, SCR/Diode modules, power assemblies, SAW filters and SOS ICs.
http://www.dynexsemi.com/

International Rectifier
Manufacturer of power semiconductors (MOSFET, IBGT, Diodes and Thyristors).
http://www.irf.com

Semikron International
SEMIKRON, Hersteller für Leistungshalbleiter Power Electronics Leistungselektronik rectifier diode mosfet, wurde 1951 von Dr. Friedrich Josef Martin in Nürnberg/Deutschland gegründet
http://www.semikron.com/

SurplusSalesCo.com
Power Electronics + Your source for: Hard To Find, Obsolete, Long Lead Time, OEM
http://www.surplussalesco.com/

3C Electronics
Power semiconductor testers
http://www.3celectronics.com/

Hustson Industries Inc.
Designs and manufacturers thyristors. Online line card, data sheets, crossmatch guide and PDF product catalogue available for download.
http://www.hutsonind.com/

Green Power Solutions
GPS started with a device reliability analysis laboratory, GPS has continued to branch out in the area of electronic solution manufacturing to custom application redesign. Today GPS serves Customers all over the world with its semiconductor branch (Green Power Semiconductors, in charge of a complete line of power diodes and thyristors) and with its solution-oriented branch (Green Power Solutions, focused on the GPS extensive line of integrated assemblies for a variety of end applications, including motor drives, electroplating power supplies, power conditioning and so on).
http://gpsemi.it

VB-Controls
Designs SSR, SCR, and IGBT based contactors for power control using thyristors, mosfets, or silicon controlled rectifiers, Manufactures zero crossing or phase angle controllers.
http://www.vb-controls.com

Amps Abundant
Amps Abundant has a complete selection of power supply rectifiers and thyristors. Our engineers are experts in servicing your power semiconductors. Contact us today!
http://www.ampsabundant.com/

Naina Semiconductor Ltd.
Manufacturers of rectifier diodes, schottky diodes, power diodes, modules, thyristors and bridge rectifiers. From India.
http://www.nainasemi.com