Toroidal Inductors – For Supporting Low Power Circuit Applications

Toroidal Inductors

Inductors are important components designed to support low power circuit systems in terms of function. They use electromagnetic induction to store and transfer energy into surrounding circuits. Toroidal inductors are known for their specific levels of inductance and current carrying capacity. These inductors are designed on a magnetic core in a round or donut shape, thus, they are called toroidal inductors.

Custom Coils is engaged in toroidal inductor design and manufacturing. Being an industry-leading toroidal inductor manufacturer, we offer these inductors in customized specifications to meet your typical application requirements. Today, toroidal inductors continue to play a vital role in a variety of industrial as well as commercial devices and equipment.

Toroidal Inductor Offerings

At Custom Coils, we design toroidal inductors with the capability to surpass the performance of industrial air coil inductors. Our inductors can be designed to support and protect equipment from Electromagnetic Interference (EMI). The doughnut shaped toroidal inductor design allows for creation of high magnetic fields and less flux leakage. Inductor designs can range from simple toroidal coils to specialized through-hole headers. We can provide custom inductors on the basis of desired specifications, which includes:

  • Tolerance
  • DC Resistance
  • Current Rating
  • Packaging Type
  • Normal Inductance
  • Case Size/Dimension

We design the inductors in compact sizes to meet applications with space constraints. The core material is chosen based on the frequencies in an application. In terms of DC resistance, we can engineer the inductors’ resistance and inductance to tight tolerances. The toroidal inductor windings can be customized for specific applications.

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Applications of Toroidal Inductors

Today, we are known as one of the leading and experienced manufacturers of custom toroidal inductors in USA. Our toroid inductors are highly recognized for their features, such as high performance, robust construction, minimal maintenance, compact designs, and so on. Owing to these beneficial features, our toroidal inductor uses are not limited to the following applications:

  • Amplifiers
  • EMI Circuits
  • Medical Devices
  • Air Conditioners
  • Industrial Controls
  • Noise Filter Regulation
  • Refrigeration Equipment
  • Switch Mode Power Supplies
  • Electronic Brakes and Clutches

Custom Coil's toroidal inductors provide applications benefits of low electromagnetic interference, durable performance and minimal flux leakage. If you would like to know more about our inductor products please feel free to contact us. Our experts will help you understand everything about toroidal inductor uses, beneficial features, working principles, and much more.


Custom Coils
PO Box 348
109 Iowa Street
Alcester, SD 57001-0348

Phone No: 605.934.2460
Fax: 605.934.2440

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