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STMicroelectronics
Solid State Manufacturing
SHINDENGEN ELECTRIC MANUFACTURING CO., LTD.
Renesas Electronics Corporation.
Naina Semiconductor Limited
Continental Device India Pvt. Ltd.
Central Semiconductor

7 TRIAC Manufacturers in 2025

This section provides an overview for triacs as well as their applications and principles. Also, please take a look at the list of 7 triac manufacturers and their company rankings. Here are the top-ranked triac companies as of February, 2025: 1.Naina Semiconductor Limited, 2.Solid State Manufacturing, 3.Central Semiconductor.

Table of Contents

List of 7 TRIAC Manufacturers

*Including some distributors, etc.

Sort by Features

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

Sort by Area

  • United States of America
  • India
  • Japan
    • Central Semiconductor
      • United States of America Address: 145 Adams Avenue Hauppauge, New York, United States of America

      Manufacturer Overview

      The Central Semiconductor Corporation is an ISO 9001:2015-certified electronics manufacturer in Hauppauge, NY. Since it was founded in 1974, the corporation has expanded to serve the global market.  Its main product line is discrete semiconductors. All products are RoHS2 and REACH compliant. The corporation also manufactures diodes, rectifiers, transistors, and protection devices. Central Semiconductor provides semiconductor solutions for several industries including alternative energy, consumer products, scientific/industrial, networking, lighting, and the medical industry.

    • Naina Semiconductor Limited
      • Naina Semiconductor Limited
        Triacs

      • India Address: D-95, Sector 63, Noida, D Block, Noida, Uttar Pradesh, India

      Manufacturer Overview

      Naina Semiconductor Limited established in Noida, Uttar Pradesh in 1988 is a manufacturer of power semiconductors used in Welding machines, Battery Chargers, and Power Supplies. Their product portfolio includes Zener Diodes, Auto Rectifiers, Solar Diodes, Power Modules, and Rectifier Stacks/Assemblies. The company has ISO 9001:2015 Certification and their devices has international JEDEC package standards. They have a national distribution channel and customer support center and they export to the USA, UK, Middle-East, Europe, and South-East Asia.

    • Continental Device India Pvt. Ltd.
      • Continental Device India Pvt. Ltd.
        Triacs

      • India Address: C-120 Naraina Industrial Area -I, New Delhi , India

      Manufacturer Overview

      Continental Device India Pvt. Ltd. (CDIL), established in 1964, is a semiconductor manufacturer headquartered in New Delhi, India. Certified with ISO 9001:2015 and ISO 14001, the company produces TRIACs, SCRs, and TVSs. It also offers complementary products, including diodes, rectifiers, and transistors. These products adhere to the European Union's Restriction of Hazardous Substances in Electrical and Electronic Equipment (RoHS) Directives. The company expanded its services by launching the Electronic Manufacturing Services (EMS) division, Deltron, in 1982. It also manufactures space-grade semiconductor devices for the Indian Space Research Organisation (ISRO).

    • SHINDENGEN ELECTRIC MANUFACTURING CO., LTD.
      • SHINDENGEN ELECTRIC MANUFACTURING CO., LTD.
        Triacs

      • Japan Address: New-Ohtemachi Bldg., 2-1 Ohtemachi 2-chome, Chiyoda-ku, Tokyo, Japan

      Manufacturer Overview

      SHINDENGEN ELECTRIC MANUFACTURING CO., LTD. (SEM) is a Japanese manufacturer of semiconductors and power system products that was established in Chiyoda-ku, Tokyo in 1949. The company primarily produces power management electronics such as engine control units (ECUs) and DC/DC converters, charge infrastructure products including inverters and power conditioners, and semiconductor models such as thyristors and MOSFETS. SEM products are used in various high-tech applications, including in telecommunications base stations and electric vehicles. The company serves clients in automotives, home appliances, telecommunications, and energy production.

    • Renesas Electronics Corporation.
      • Japan Address: TOYOSU FORESIA, 3-2-24 Toyosu, Koto-ku, Tokyo, Japan

      Manufacturer Overview

      Renesas Electronics Corporation was established in 2002 and is headquartered in Tokyo, Japan. Renesas is a global research, design, and manufacturer of semiconductors used in industries spanning automotive, consumer electronics, the internet of things, power & energy, and industrial sectors. Renesas manufactures both analog and digital products. Analog products include amplifiers, audio & video devices, data converters, PLC, and switches & multiplexers. Digital products include microcontrollers, memory components, sensors, wireless connectivity products, and others. Renesas also offers design resources such as kits, development tools, partner programs, and design tools.

    • STMicroelectronics
      • STMicroelectronics
        Triacs

      Manufacturer Overview

      ST Micro Electronics is a global semiconductor company serving customers with innovations to have a positive impact on people's lives. Their product line is micro electronic systems, such as switches, controllers, sensors and drivers. The main selling point of ST Micro Electronics is its provision of sustainable products, and introducing their electronics to create a more sustainable world. The company, as well as providing the electronic devices, also provides software and support, ensuring that all fields are covered to provide a fully provide a supported and strong relationship with their customer base. ST Micro Electronics believe that technology plays a key role in helping to solve environmental and social challenges, which is why their semiconductor technologies start with their employees, their customers and partners.

    • Solid State Manufacturing
      • Solid State Manufacturing
        Triacs

      Manufacturer Overview

      Solid State MFG is a semiconductor manufacturer based in New Jersey. Their product portfolio includes Rectifiers, Diodes, Triacs, Diacs, and IGBT (Insulated-Gate Bipolar Transistors) as different types of semiconductors. These products provide protection for various applications such as power supply, voltage clamping, and regulating the voltage flow in small circuits along with full-wave rectification. The Diodes are used as clamping devices for the protection of electronics against spike in voltage and the SCRs (Silicon-Controlled Rectifiers) function as lamp-dimming regulators and controllers of welding machines. The IGBT has uses in trains, air conditioners, stereo systems, and electric cars.

TRIAC Manufacturer Ranking

*Including some distributors, etc.

Derivation Method

The ranking is calculated based on the click share within the triac page as of February 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.

Number of Employees

  1. Renesas Electronics Corporation.: 21,017
  2. SHINDENGEN ELECTRIC MANUFACTURING CO., LTD.: 5,268

Newly Established Company

  1. Renesas Electronics Corporation.: 2002 (23 years ago)
  2. SHINDENGEN ELECTRIC MANUFACTURING CO., LTD.: 1949 (76 years ago)

Company with a History

  1. SHINDENGEN ELECTRIC MANUFACTURING CO., LTD.: 1949 (76 years ago)
  2. Renesas Electronics Corporation.: 2002 (23 years ago)

TRIAC Manufacturers in United States

*Including some distributors, etc.

Global Distribution of TRIAC Manufacturers by Country

*Including some distributors, etc.

Country Number of Companies Share (%)
India India 2 40.0%
Japan Japan 2 40.0%
United States of America United States of America 1 20.0%

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List of TRIAC Products

117 products found

117 products

RKC INSTRUMENT

DIN rail mounting power regulator 15A type phase control SSNP-15F

140+ people viewing

Last viewed: 7 hours ago

Fast Response

Response Rate
100.0 %
Response Time
11.4 hours

■Features ・Slim size with a width of 21.5mm ・Horizontal close mounting possible (up to 8 units) ・Both DIN rail mounting and screw mounting are p...

Seiwa Co., Ltd.

Photocoupler transistor

150+ people viewing

Last viewed: 2 hours ago

Fast Response

5.0 Company Review

Response Rate
100.0 %
Response Time
10.1 hours

A general-purpose transistor output type photocoupler.

JEL SYSTEM CO,LTD.

Thyristor module

130+ people viewing

Last viewed: 9 hours ago

Standard Response

Response Rate
100.0 %
Response Time
15.8 hours

This module is equipped with a thyristor element and is packaged into a single package to suit various circuit configurations. ■Features ・Customi...

Seiwa Co., Ltd.

Photocoupler triac

150+ people viewing

Last viewed: 2 hours ago

Fast Response

5.0 Company Review

Response Rate
100.0 %
Response Time
10.1 hours

This is a photocoupler with phototriac output.

Seiwa Co., Ltd.

Photocoupler high speed

140+ people viewing

Last viewed: 7 hours ago

Fast Response

5.0 Company Review

Response Rate
100.0 %
Response Time
10.1 hours

A general-purpose transistor output type photocoupler.

Nimatsu Electric Co., Ltd.

Photo DMOS-FET relay, photo coupler, photo interrupter, proximity switch, reed switch

180+ people viewing

Last viewed: 22 hours ago

Very Fast Response

Response Rate
100.0 %
Response Time
0.4 hours

Letex Technology is a manufacturer of Photo DMOS-FET relays, optocouplers, and other Photo related products, founded in Taiwan in 2001. Obtained IS...

RKC INSTRUMENT

Single phase solid state relay (SSR) SSL

280+ people viewing

Last viewed: 19 minutes ago

Fast Response

Response Rate
100.0 %
Response Time
11.4 hours

■What is solid state relay (SSR)? Generally abbreviated as SSR, it is a device that turns on/off power to the heater using a semiconductor relay (t...

2 models listed

SSL-15F-Single phase solid state relay (SSR) SSL
SSL-25F-Single phase solid state relay (SSR) SSL

RKC INSTRUMENT

Single-phase power regulator (thyristor unit SCR) THV-10 (20A, 30A, 45A, 60A, 80A, 100A)

360+ people viewing

Last viewed: 9 hours ago

Fast Response

Response Rate
100.0 %
Response Time
11.4 hours

■All models have CE marking, UL and cUL certified All models are CE marked and certified to overseas safety standards (UL, cUL). *For CE marking, u...

10 models listed

THV-10PZ020-5*NNN-N-Single-phase power regulator (thyristor unit SCR) THV-10 (20A, 30A, 45A, 60A, 80A, 100A)
THV-10PZ020-5*NNA-N-Single-phase power regulator (thyristor unit SCR) THV-10 (20A, 30A, 45A, 60A, 80A, 100A)
THV-10PZ020-5*NNB-N-Single-phase power regulator (thyristor unit SCR) THV-10 (20A, 30A, 45A, 60A, 80A, 100A)
THV-10PZ020-5*NNC-N-Single-phase power regulator (thyristor unit SCR) THV-10 (20A, 30A, 45A, 60A, 80A, 100A)
THV-10PZ020-5*NAN-N-Single-phase power regulator (thyristor unit SCR) THV-10 (20A, 30A, 45A, 60A, 80A, 100A)
THV-10PZ020-5*NAA-N-Single-phase power regulator (thyristor unit SCR) THV-10 (20A, 30A, 45A, 60A, 80A, 100A)

Keisei Co., Ltd.

Optical semiconductor photo coupler

90+ people viewing

Last viewed: 5 hours ago

Fast Response

Response Rate
100.0 %
Response Time
11.2 hours

■Features ・Features: JEDEC compatible / analog output compatible ・Applications: For communication interface / for PLC / for measuring instruments...

Towa Electronics Co., Ltd.

Photovoltaic output photocoupler (for MOSFET drive)

90+ people viewing

Last viewed: 7 hours ago

Standard Response

5.0 Company Review

Response Rate
100.0 %
Response Time
13.7 hours

A photovolt output photocoupler is an element that receives LED light with a photodiode array on the receiving side and extracts the output voltage...

Towa Electronics Co., Ltd.

Photocoupler for IPM interface

90+ people viewing

Last viewed: 7 hours ago

Standard Response

5.0 Company Review

Response Rate
100.0 %
Response Time
13.7 hours

A photocoupler compatible with power supply voltages of 5V and 15V, ideal for isolated interfaces of IPM (Intelligent Power Module). The output cir...

Towa Electronics Co., Ltd.

Photo coupler for high speed communication

100+ people viewing

Last viewed: 7 hours ago

Standard Response

5.0 Company Review

Response Rate
100.0 %
Response Time
13.7 hours

We have a lineup of products that support a variety of communication standards, from medium-low speed communications such as RS-232 to high-speed c...

Towa Electronics Co., Ltd.

Automotive photocoupler

80+ people viewing

Last viewed: 7 hours ago

Standard Response

5.0 Company Review

Response Rate
100.0 %
Response Time
13.7 hours

A photocoupler for automotive applications that complies with IATF16949. We have a wide lineup of products with various output types. These product...

Towa Electronics Co., Ltd.

Photocoupler isolation amplifier

110+ people viewing

Last viewed: 8 hours ago

Standard Response

5.0 Company Review

Response Rate
100.0 %
Response Time
13.7 hours

Our isolation amplifier is an optically coupled isolation amplifier equipped with a high-precision ΔΣAD conversion circuit on the input side. Mainl...

Towa Electronics Co., Ltd.

Photocoupler Gate driver coupler

80+ people viewing

Last viewed: 7 hours ago

Standard Response

5.0 Company Review

Response Rate
100.0 %
Response Time
13.7 hours

A photocoupler suitable for IGBT/MOSFET gate drive. We have a wide lineup of products, including types with built-in overcurrent protection functio...

Würth Elektronik

Optocoupler Optocoupler TRIAC WL-OCTR DIP-4

70+ people viewing

Last viewed: 7 hours ago

Standard Response

Response Rate
100.0 %
Response Time
20.1 hours

■Features ・Zero cross and non-zero cross (random phase) types -Various trigger currents and peak-off voltages available ・High insulation voltage ...

Würth Elektronik

Optocoupler Photocoupler Phototransistor WL-OCPT DIP-4

120+ people viewing

Last viewed: 9 hours ago

Standard Response

Response Rate
100.0 %
Response Time
20.1 hours

■Features ・High insulation voltage ・Good internal isolation stability ・Stable CTR with full operation ・Various CTR binning options available ・...

Japan International PS

Sirista diode mixed module

370+ people viewing

Last viewed: 12 minutes ago

Standard Response

Response Rate
100.0 %
Response Time
16.1 hours

There are other part numbers.

10 models listed

Japan International PS

Sirista for flat -type reverse reverse pressure asymmetric high -speed

340+ people viewing

Last viewed: 12 hours ago

Standard Response

Response Rate
100.0 %
Response Time
16.1 hours

There are other part numbers.

10 models listed







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