Zinc oxide varistors (results: 288)

Through-Hole Varistors

Through-hole varistors are a type of varistor frequently used in various circuits and devices. These components protect against voltage surges and ensure the safety of the equipment. To ensure that a through-hole varistor is well-suited for your system, it is important to consider its basic parameters.

Through-Hole Varistors – Operating Principles

Through-hole varistors are employed in electronic and electrical devices to provide safe operating conditions. This is achieved because these components absorb energy when excessive electrical voltage occurs, preventing damage to the equipment. A through-hole varistor can perform this function due to its properties—it features nonlinear resistance. As a result, when the voltage increases to a certain level, the resistance dramatically drops, allowing the component to fulfill its role. For a through-hole varistor to have the necessary properties to perform this task, it must be made from suitable materials. Typically, this involves using powdered zinc oxide grains mixed with other substances, which are then pressed, sintered, metallized, and coated.

Where Are Through-Hole Varistors Used?

Through-hole varistors are commonly used by manufacturers of various types of electronic equipment. They can be found in both small devices and large machinery. The limitation to their use may be size—sometimes, it may be necessary to use smaller components, such as SMD varistors.

How to Find Through-Hole Varistors Suitable for Your System?

Depending on their construction and the materials used in their production, through-hole varistors can vary in their operating parameters. When purchasing a component for a specific system or device, it is important to consider features such as the varistor's voltage rating, power rating, and maximum AC and DC voltage. Our online store offers through-hole varistors with various parameters, ensuring that you can find a component that is appropriately matched to your needs.