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Caspian Semiconductors Limited was established in 1986 in Manchester, England. Caspian have been in the field of design and manufacture of Selenium and Silicon rectifier assemblies and associated products for over twenty five years. Caspian Semiconductors specialises in the design and manufacture of quality power conversion products to customer requirements.

WE SUPPLY. . .DIODES, THYRISTORS, MODULES, HIGH SPEED FUSES, HEATSINKS, COMPLETE SILICON AND SELENIUM RECTIFIER ASSEMBLIES, SURGE SUPPRESSORS, HIGH POWER MOSFETs, GTOs AND IGBTs , WOUND COMPONENTS AND REPAIR TO All TYPES OF RECTIFIER ASSEMBLIES. . .