• 1201 West Randolph St., McLeansboro, IL, USA

STC, Inc. - Social Media

STC is an ITAR-registered company with over 25 years experience designing and manufacturing transformers for high-reliability military applications. As such, we are experienced meeting defense specifications (Mil Spec). Our experience includes designing and building transformers for aerospace defense, tactical display equipment, mobile power-supply units, naval-vessel equipment, and more.

STC manufactures a wide range of military-grade transformers for use in harsh environments. Our military-rated transformers include everything from Toroids to Power Transformers (both single phase and three phase), and many others. In many cases, we encapsulate our military-rated transformers to withstand years of use in severe environments. We also manufacture transformers suitable for circuit-board assemblies with conformal coating.

ITAR - International Traffic in Arms Regulations Seal
ISO 9001:2015 Registration Mark

STC Sun Transformer is an ISO 9001 certified engineering and manufacturing company. We are also industry certified to IPC-A-610 (J-STD-001) manufacturing standards. Our magnetics components are used in a wide range of high-reliability applications with demanding specifications and must perform in harsh environmental conditions.

Sun Transformer can design and manufacture control transformers to meet nearly any requirement. For more information about how we can provide your transformer needs, please send us your specifications or call us today!

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