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Engineering / Quality


Sigma Electronics provides comprehensive engineering and design capabilities for a wide array of custom magnetic and wirewound transformers and components. With over 45 years of experience designing and manufacturing custom magnetics and wirewound components, the engineers at Sigma provide the highest standards of quality and reliability and have over 10,000 proprietary designs in house. Our highly knowledgeable engineers can design a new part, modify or duplicate an existing part for your individual application using state of the art equipment and resources. The management team and staff at Sigma continuously research new design concepts and technological developments in order to provide the most advanced designs available.


Sigma Electronics is committed to providing the highest quality products available in the industry. Equipped with the most innovative computer-aided designs and Voltech AT 3600 test equipment, we provide high quality reliable products with reasonable lead times. Each unit manufactured by Sigma is marked with a date code, assigned a serial number and receives 100% in-process and final testing. All Sigma manufacturing facilities are ISO 9001:2015 certified.

Quality Policy Statement

Sigma Electronics accepts responsibility for the complete satisfaction of its customers. We exercise this responsibility through adequate training of our employees, adherence to proven procedures, total commitment to meeting and exceeding customer requirements, and maintaining a company culture that fosters continuous improvement. Our objective is to deliver defect free products/services on time, every time.

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