RFTVS Varistor Selection Guide and Manufacturers
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This guide is designed to help you select the right TVS Varistor from a variety of manufacturers.
What is a TVS Varistor? - Introduction
Metal-Oxide Varistors (MOV), often referred to as TVS Varistors, are electronic components vital for protecting sensitive circuits from electrostatic discharge (ESD) and other transient voltage events. A varistor, short for variable resistor, is an electronic component with an electrical resistance that changes based on the applied voltage. For this reason, they are also known as Voltage Dependent Resistors (VDRs).
They exhibit a non-linear voltage-current (V-I) characteristic, much like a diode.
The metal-oxide varistor is the most prevalent type. It consists of a ceramic mass made up of zinc oxide grains held together in a matrix of other metal oxides, all sandwiched between two metal plates (electrodes). These metal oxides can include elements like bismuth, cobalt, and manganese.
TVS Varistor Selection Guide
When choosing a TVS Varistor for your specific application, keep the following specifications in mind:
- Varistor voltage range (min.,max.)
- Surge Current
- Energy
- Number of Circuits
- Maximum AC Volts
- Maximum DC Volts
- Capacitance @ frequency
- Operating Temperature
- Mounting Type
- Package/Case Type
TVS Varistor Manufacturers
The following table lists some of the well-known TVS Varistor manufacturers:
| TVS Varistor Manufacturers |
|---|
| AVX Corporation |
| Eaton |
| Bourns Inc. |
| KEMET |
| Abracon LLC |
| Littlefuse Inc. |
| Murata |
| Micro commercial Co. |
| Socay Electronics Corp., Ltd. |
| Panasonic electronic components |
| Vishay |
| TDK Corporation |
| Yageo |
