Description 20 Manufacturers
TDK Electronics
Synton-Tech Corporation
Nanyang Jinniu Electric Co., Ltd.
Guangdong Uchi Electronics Co.,Ltd
Elpro International Limited
Dongguan Tianrui Electronics Co., Ltd
ATC Semitec Ltd

20 Metal Oxide Varistor Manufacturers in 2024

This section provides an overview for metal oxide varistors as well as their applications and principles. Also, please take a look at the list of 20 metal oxide varistor manufacturers and their company rankings.

Table of Contents

What Is a Metal Oxide Varistor?

A metal oxide varistor (MOV) is a critical component in protecting electrical circuits from voltage spikes. It functions by clamping excess voltage and thereby limiting the current flowing through the circuit, preventing potential damage to connected devices.

Constructed from a ceramic mass of zinc oxide grains, sandwiched between two metal plates (electrodes), an MOV remains non-conductive under normal voltage conditions. However, upon experiencing a voltage surge, its resistance dramatically decreases, allowing it to absorb and dissipate the excess energy, thereby safeguarding the circuit components from overvoltage events.

MOVs are widely implemented across both household and industrial settings, offering protection for power systems, communication devices, and various electrical appliances against voltage surges.

List of 20 Metal Oxide Varistor Manufacturers

*Including some distributors, etc.

Sort by Features

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  • Company Size: largest first
  • Year Founded: oldest first
  • Year Founded: earliest first

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  • China
  • India
  • Japan
  • Taiwan
    • Dongguan Tianrui Electronics Co., Ltd
      • China Address: No.1 Building, No.9 Chashan part, Guanlong Road, Chashan Town, Dongguan City, Guangdong, China

      Manufacturer Overview

      Dongguan Tianrui Electronics Co., Ltd, established in 2010 and headquartered in Dongguan City, China, is a manufacturer and supplier of circuit protection components. The company's product portfolio includes automotive fuses, PCB electrical fuse holders, and negative temperature coefficient thermistors. These products find applications in various industries, including electronics manufacturing, industrial automation, and the automotive industry. The company is ISO 9001:2000 certified for its quality management system, with its main markets including the United States, the United Kingdom, and South Korea.

    • Elpro International Limited
      • India Address: 17th Floor Nirmal, Nariman Point, Mumbai, Maharashtra, India

      Manufacturer Overview

      Elpro International Limited is a manufacturer of surge arresters and zinc oxide discs with GE technology, incorporated in 1962 and headquartered in Mumbai, India. The company specializes in the design and production of high-voltage arresters and low-voltage metal oxide varistors. It also offers surge protection devices for solar power, wind power, LED street lighting, railway signaling, and more. The company fully complies with the European Union RoHS directive and exports products to over 50 countries worldwide. It caters to diverse sectors, including power generation and distribution, railways, telecommunications, solar energy, and wind energy.

      • China Address: Beside Luchong Bridge, Dao Hou Road, Caibai Village, Daojiao Town, Dongguan, Guangdong, China

      Manufacturer Overview

      Dongguan Zhixu Electronic Co., Ltd. (also known as JYH HSU (JEC) ELECTRONICS LTD.) is an electronic component manufacturer, established in 1988 and located in Dongguan, Guangdong, China. Utilizing automated production and testing machines, along with a laboratory for assessing product performance and reliability, the company offers a selection of capacitors, including ceramic, electrolytic, and safety capacitors. It also produces a range of resistors, namely varistors and thermistors. The company’s varistor offering include metal oxide lightning arrester varistors, lightning protection varistors, and zinc oxide varistors, whereas its thermistor lineup includes negative temperature coefficient (NTC) thermistors and precision NTC power thermistors.

    • Synton-Tech Corporation
      • Taiwan Address: 16F-3, No. 79, Far East WSorld Center, Sec. 1, Hsin Tai Wu Road, Hsi-Chih, Taipei, Taiwan

      Manufacturer Overview

      Synton-Tech, established in 1988, is a Taiwanese manufacturer of passive components such as resistors, capacitors, and inductors. With 34 years of manufacturing and supplying, their production lines are strictly controlled. They continuously develop new products and expand production lines. Since they are manufacturer and not supplier, they have various distributing agents that white label their products, including WALSIN, KAMAYA, UNIOHM, CHENG TUNG, and GRANDE. Some other distributing agents they use are YAGEO, CHILLISIN, EVER OHMS, and HOLY STONE.

    • TDK Electronics
      • Japan Address: Nihonbashi Takashimaya Mitsui Building 2-5-1, Nihonbashi Chuo-ku, Tokyo, Japan

      Manufacturer Overview

      TDK Electronics, established in 1935 and headquartered in Tokyo, Japan, is a developer, manufacturer of electronic components and systems. Its product portfolio spans capacitors, ferrites, and inductors, including piezo and protection devices. The company also offers sensors and sensor systems, covering temperature, pressure, magnetic, and MEMS sensors. Furthermore, TDK provides power supplies, energy devices, magnetic heads, and more, all branded under TDK, EPCOS, InvenSense, Micronas, Tronics, and TDK-Lambda, catering to diverse electronic needs. The company operates about 20 development and manufacturing sites, along with a network of design, manufacturing locations, and sales offices situated in Asia, Europe, North America, and South America.

    • Guangdong Uchi Electronics Co.,Ltd
      • China Address: Room 810, Unit 2, Building 5, Huixing Commercial Center, Dongsheng Road No.1, Zhongshan Dong, Shilong Town Dongguan, GUANGDONG, China

Metal Oxide Varistor Manufacturer Ranking

*Including some distributors, etc.

Number of Employees

Newly Established Company

  1. Nanyang Jinniu Electric Co., Ltd.: 2008 (16 years ago)
  2. Guangdong Uchi Electronics Co.,Ltd: 2006 (18 years ago)
  3. Synton-Tech Corporation: 1988 (36 years ago)

Company with a History

  1. Elpro International Limited: 1962 (62 years ago)
  2. Synton-Tech Corporation: 1988 (36 years ago)
  3. Guangdong Uchi Electronics Co.,Ltd: 2006 (18 years ago)

Global Distribution of Metal Oxide Varistor Manufacturers by Country

*Including some distributors, etc.

Country Number of Companies Share (%)
China China 5 62.5%
India India 1 12.5%
Taiwan Taiwan 1 12.5%
Japan Japan 1 12.5%

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