Sun Transformer Logo
Electronic Transformer Manufacturer

Quality Transformer Manufacturing

Sun Transformer manufactures custom transformers, inductors, and coils for electronics applications. We are capable of producing transformers up to 10 KVA, and our designs include the following transformer types:

  Power Transformers High Voltage Flyback Transformers
  Single-Phase Autotransformer Inverter Transformers
  Three-Phase Inductors / Chokes Ferroresonant
  Control LPC (Low Profile) Pulse Transformers
  Isolation / High-Iso Heat-Sealing Toroids
  Specialty Switching Lighting (industrial)

Whether it's a design for hundreds of thousands or a single replacement unit, Sun Transformer is up to the task—and has been since 1986.

Sun Transformer Products

Sun Transformer Manufacturing Facility, McLeansboro, IL - Photo by Marty CoxAll Sun Transformer products are made in the USA at our ISO 9001:2008 registered plant. Employees at Sun Transformer are dedicated to following production standards and satisfying customer requirements.

About Sun Transformer

STC Sun Transformer Capabilities StatementDecember 20, 2013 – We welcome you to learn more about the value-added capabilities available from Sun Transformer.

Please review the PDF Capabilities Statement on the left (by clicking the image) as well as the video below. Feel free to contact us for information about how to make Sun your preferred transformer supplier.

Intro to Sun Transformer

Three "Underrated" Reasons to Order from Sun

September 17, 2014 – While our quality, manufacturing capabilities, pricing, and testing are prime reasons our customers continue to turn to Sun Transformer, there are significant, but less obvious, reasons to considering Sun for your upcoming projects. Here they are in reverse order... (read more)

Sun News Items

Our address

Sun Transformer
1201 W. Randolph St.
McLeansboro, IL 62859

Phone: 618.643.2555
Fax: 618.643.2316

ISO 9001:2008

ISO Quality Management Certification Registrars Logo

View our ISO 9001:2008 Quality System certificate (PDF 200 KB).

Made in the USA

Make it in America Logo (Manufacturing Extension Partnership)

All Sun Transformer products are made in the USA.