Chip Varistor

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Achieve electrostatic protection excellent effect by ceramics materials and process technology of its own.

Alternate of the Zener diode is easy, and contribute to the size and weight of the applications.

The wide product line up of the laminate structure, and adaptable to a wide range of applications to high-speed signal lines from the power supply.

Topics

2025-08-01 The product numbers of the EZJZ series (2 product numbers), the EZJP series (10 product numbers) have been expanded.
2024-12-10 Added EZJPR-M series 2in1 type.
2024-12-10 The product numbers of the EZJZ-M series (2 product numbers), the EZJP-M series (1 product number), and the EZJP series low-voltage type (3 product numbers) have been expanded.
2024-01-26 We have expanded the product numbers of the EZJZ-M series (1 product number) and EZJP series (2 product numbers).
2020-12-24 "2 Array Type for Signal lines" has been discontinued.
2020-11-12 The part number of "Chip Varistor for Automotive" series has been added (2 part number).
2019-08-01 SPICE model has been posted.
2019-06-03 2 Array Type for Signal lines are Not Recommended for New Design.
2019-01-08 "Chip Varistor" page has been updated.
2017-04-04 The design support tool " Characteristic Viewer" has been posted
2016-10-28 Registration certificates of quality and environment certifications (ISO, TS) are available for download

What is the Multilayer Chip Varistor?

A varistor is a ceramic electronic component whose resistance varies depending on the applied voltage.

The term "varistor" is derived from "variable resistor." Varistors are also known as non-linear resistors or voltage-dependent resistors.

This voltage-dependent characteristic enables a varistor to rapidly decrease its resistance when an overvoltage is applied, diverting excess current and thereby protecting electronic equipment from lightning surges and electrostatic discharge (ESD).

In particular, chip varistors are primarily used for ESD protection.

Appearance

Construction

Differences from General Resistors
Varistor’s voltage/current
characteristics differ from a fixed resister
and the element changes its resistance values widely!

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What is the function of Chip Varistor?

checkmark Current-Voltage characteristics

It protects electronic devices from electrostatic discharge (ESD) by utilizing its characteristic of changing resistance values depending on applied voltage!