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

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Examples of Custom Electronic Transformers

Custom Transformers, Inductors, and Coils

Magnetics Transformer Icon

Sun Transformer manufactures custom electronic transformers, inductors, and coils for a wide range of applications, including aerospace, defense, high-reliability commercial and industrial. Our products are built to meet or exceed both industry standards as well as customer specifications. We are an ITAR registered manufacturer specializing in small to mid-size magnetics, and we are capable of building custom electronic transformers up to 10 KVA.

We have provided transformer manufacturing services for over 30 years, and we also provide advanced electronics manufacturing services (EMS). Explore the various transformer types available through us, as well as the industries we serve.

Custom Electronic Transformers...

Coils

Consists of magnet wire turned around a form, which enhances the magnetic field created when...

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Inductors/Chokes

Chokes smooth voltages in DC equipment and can block certain frequencies while passing others...

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Custom

We prototype and build magnetics based on our own designs as well as customer specifications...

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Toroids

Built around a circular core and offers greater efficiency for a given size...

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PC Mount

Take up minimal vertical space and are typically installed on printed circuit boards...

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High Voltage

Provide a high-voltage power source as well as isolation from lower voltages or ground...

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Power

Power supplies for a wide variety of applications—typically no larger than 10 KVA...

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Three Phase

Contain three sets of primary and secondary windings, with each set wound around an iron core...

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Isolation

Provide high-voltage separation between the windings and/or between the windings and the core...

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Autotransformers

A single winding with at least three terminals to step down (or step up) the voltage...

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Ferroresonant

Laminated transformers designed so the core reaches a point of magnetic saturation...

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Control

Provide power to the control circuitry in machinery and industrial shop equipment...

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Switching

Optimized to operate at higher frequencies than their laminated counterparts...

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Instrument

Feed an isolated test circuit while protecting both the source circuit and its connections...

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High Frequency

Typically built with ferrite cores resulting in lower remanence and higher efficiency...

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Encapsulated

Enclosed in a casing to protect against environmental contaminants or to meet other requirements...

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Defense

STC is an ITAR-registered company with over 25-years experience designing and manufacturing transformers for high-reliability military...

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Environmental

STC manufactures transformers for environmental applications, which include maintaining full environment conditions, as well as...

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Medical

STC manufactures transformers for Class I, Class II, and Class III medical devices. STC transformers are included in a range of medical devices and...

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Lighting

STC Manufactures transformers for many lighting applications, including aircraft lighting, stage lighting & controls, tower lighting...

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Aerospace

STC partners with aerospace-equipment manufacturers to provide transformers for a wide range of avionics equipment including...

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Broadcast

STC Sun Transformer has extensive history manufacturing transformers for broadcast applications. As the broadcast industry has evolved...

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Renewable Energy

STC transformers are utilized in various renewable-energy applications. The most common transformer style for RE applications are...

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Commerical

STC manufactures transformers for many commercial products including, global-navigation equipment, high-end appliances, and...

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Marine

Transformers for marine applications, from aboard electronics to below-surface communications & measurement, and...

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Industrial

STC manufactures transformers used to power many industrial applications, including CNC Machines, Electronic Access Controls, Large-Scale...

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Recent News

STC Clients Include...