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Semiconductor Circuits, Inc.has been in business for over 53 years, having started as a privately held company in 1966. Since inception the company has designed and manufactured AC to DC and DC to DC power converters for the OEM electronics industry. Semiconductor Circuits, Inc. is a subsidiary of Cool Power Technologies. We continue to service customers representing diverse domestic and international markets including, but not limited to, Transportation, Datacom/Telecom, Medical, Industrial, Electric Vehicle, Instrumentation, EDP, Lighting, Aerospace and Defense. Semiconductor Circuits, Inc.’s corporate headquarters and manufacturing facility is located one hour Northeast of Boston, Massachusetts in Londonderry, New Hampshire.