World Class Custom Transformers and Inductors

Welcome to Custom Coils, your go-to location for custom transformers and other specialty magnetic components. Companies all over the world that rely on magnetic components for their own production have trusted in Custom Coils to deliver the parts they need since 1967. Custom Coils not only manufactures parts like custom transformers, it also creates designs specifically to meet the needs of its individual clients.

WHY CUSTOM COILS IS THE BEST CHOICE

• Dependable Source...Built in the U.S.A.
• Solid, Reliable Manufacturing Techniques
• Proven Leader in the Magnetics Industry
• Custom Designed and Built to your Specifications

Our products are manufactured in the United States in our Alcester, South Dakota headquarters. Since our inception, we have become a proven leader in the magnetic industry by building a reputation for dependability, for our use of solid, reliable manufacturing techniques and our willingness to custom design parts and build them to client specifications. Whether a client needs a custom transformer, DC igniters, antennas, air coils or beyond, we deliver world-class products with a level of service that is second to none.

At Custom Coils, our clients are the backbone of our business. To meet their unique needs, we employ a staff of more than 100 employees to serve 140-plus active accounts. Ensuring that an outstanding level of service is maintained for all accounts is priority No. 1. We achieve this by offering personalized service to each customer. Our engineers build their own samples and customer service is provided directly by a key manager. Our top management even visits all customers directly to ensure maximum satisfaction with our products.

When your company needs magnetic components, you’ll find at Custom Coils our expertise includes such product areas as:

	Power transformers Our typical custom transformers that fit the power category range from dime size to large car battery size. Our engineers can create a custom transformer of this type to meet your exact needs.		High voltage transformers Creating custom transformers designed for high voltage is one of our specialties. Our line is ideal for such formats as low profile, split section, PC mount, high voltage exit and more.		Trigger transformers With growth in the production of lasers and flash lamps, the need for trigger transformers is on the rise. At Custom Coils, we also specialize in the production of these custom transformers.
	Switch mode transformers Electronic applications often call for the use of switch mode transformers. We custom design and build these to meet client’s specific needs.		Toroidal transformers Custom Coils offers more than 40 years experience in the area of designing and building these high-performing custom transformers.		DC igniters We have been involved in winding and building 12V DC igniters for decades. Our igniters are used worldwide.
	Antennas and air coils Custom Coils brings more than four decades of experience to the manufacturing of these specialty parts.		High current inductors We offer several series of axial leaded, radial leaded and drum core shaped inductors.		Hydrogen coils In addition to custom transformers, we also have the ability to manufacture hydrogen generator coils.

When your company needs a custom transformer and other magnetic components, Custom Coils is ready to deliver. With more than 40 years in the industry, we have become the trusted go-to location for these parts by companies all over the world.