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There are many advantages to selecting custom inductors for your electrical or electronic products. Most important, custom-design means you get—and pay for—exactly what you need: no more, no less. Using custom-made components helps you avoid many common problems, and...

Electrical transformers are essentially a coil of electrically conductive wire wound around an iron core, most often a rectangular “EI” core. Some transformers, however, look more like a doughnut, and they are called toroidal transformers. Either construction makes...

Many kinds of electrical or electronic components and circuits require lower voltages than line voltage and therefore a means to lower it. Some applications and circuits are more complicated, sophisticated, or sensitive than others. For some, the best solution may be...

A transformer is an electrical device designed and manufactured to step voltage up or step down. Electrical transformers operate on the principle of magnetic induction and have no moving parts. As a transformer transforms the voltage on the input side to the voltage...

Two important reasons Johnson Electric Coil Company is considered a leader in the design and manufacturing of custom toroidal transformers? Our expertise and our experience. For over eight decades, we have been providing a level of quality and service that enables our...

There are millions of miles of power lines that cross the countryside. Some are buried underground, but chances are you’ve also seen them strung from pole to pole across the states. Those power lines carry electricity from the power plants to our homes, schools,...

For OEMs, particularly with new companies or startups manufacturing their first products, hiring Johnson Electric Coil Company to complete the design and production of your custom electrical transformers, inductors, and chokes is a sound business decision. We have a...

Within any industry, there are companies that generalize and companies that specialize. Some decide to provide a wide range of products and services and others choose to specialize and work on a small product range. At Johnson Electric Coil Company, we are a...

At Johnson Electric Coil Company, we work with many different companies with global needs to design and manufacture custom inductors and transformers unique to their specifications. Most of our customers are established OEMs, but we also work with smaller companies,...

Single phase transformers are some of the most common electrical and electronic components on the market today. Johnson Coil’s single phase transformers serve a wide range of industrial uses and applications and make it possible to use many types of control circuits....