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This section provides an overview for optocouplers as well as their applications and principles. Also, please take a look at the list of 9 optocoupler manufacturers and their company rankings. Here are the top-ranked optocoupler companies as of December, 2024: 1.MURRELEKTRONIK INC., 2.CONTA-CLIP Verbindungstechnik GmbH, 3.Littelfuse, Inc.
Table of Contents
An optocoupler, or opto-isolator, is a circuit that exchanges electrical and optical signals.
It converts electrical signals into optical signals, transmits them through optical fibers, and then converts the optical signals back into electrical signals at the other end. The operational principle involves a combination of an LED (light emitting diode) and a photodiode. When a current flows through the LED, it emits light, and this light is received by the photodiode, generating a corresponding electrical current. The LED and the photodiode are connected by optical fibers, allowing for the transmission of electrical and optical signals while keeping them separated.
Optocouplers are used to prevent the mixing of electrical and optical signals due to their ability to separate these signals. Additionally, their use of optical fiber for transmission makes them suitable for environments where long-distance communication or immunity to electromagnetic noise is essential.
*Including some distributors, etc.
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Littlefuse was founded in 1927 and headquartered in the United States. Littlefuse is a diversified industrial technology manufacturing company with customers globally. Littlefuse has products segments which are electronic, industrial, and transportation. Electronic segment products include fuses and fuse accessories, positive temperature coefficient resettable fuses, polymer electrostatic discharge suppressors, and varistors. Transportation products include blade, resettable, and high-current and high-voltage fuses, as well as battery cable protectors; fuses, switches, relays, circuit breakers, and power distribution modules. The Industrial segment offerings include contactors, transformers, and temperature sensors for use in renewable energy and energy storage systems, electric vehicle infrastructure, HVAC systems.
Founded in Irvine, CA in 1962, Skyworks Solutions, Inc. designs, develops, manufactures, and markets proprietary semiconductor products. Its product portfolio includes amplifiers, antenna tuners, attenuators, automotive tuners and digital radios, clocks and timings, circulators/isolators, DC/DC converters, demodulators, detectors, diodes, wireless analog system on chip products, directional couplers, diversity receive modules, filters, front-end modules, hybrids, LED drivers, low noise amplifiers, mixers, modulators, switches, synthesizers, timing devices, technical ceramics, voltage controlled oscillators/synthesizers, and voltage regulators. The company provides its products for the usage in aerospace, automotive, broadband, cellular infrastructure, connected home, entertainment and gaming, industrial, medical, military, smartphone, tablet, and wearable markets.
Murrelektronik, established in 1975 and headquartered in Oppenweiler, Germany, is a manufacturer of electrical and electronic installation concepts for machine and system installations. The company's product range includes power supplies, M12 cable, fieldbus I/O, and more. It also offers a wide variety of jacket colors and cable types, including M8 and M12 sensor cables and Mini (7/8”) power cables. Its products simplify industrial image processing with its installation concept. The company is among the TOP 100 for Cube67 Diagnostic Gateway for Cube67 Diagnostic Gateway Students. It serves a wide range of industries, including automotive, food and beverage, and robotics.
Vishay Intertechnology, Inc. (Vishay) was incorporated in 1962 and is headquartered in Malvern, Pennsylvania. The company serves the industrial, automotive, telecommunications, consumer products, and medical end markets and sells its products under numerous brand names inlcuding Siliconix, Draloric, Beyschlag, UltraSource, and Applied Thin-Film Products. The company manufactures and sells discrete semiconductors and passive electronic components in globally while operating in six market segments: MOSFETs, diodes, optoelectronic components, resistors, inductors, and capacitors.
Standex Electronics is a worldwide market leader in the design, development and manufacture of standard reed switch-based sensor solutions and custom electro-magnetic components, including magnetics products. Their company history dating back to 1969, Standex has provided their service to a high customer base globally for more than 50 years. The company has high-quality standards, work by the approach of "partner, solve, deliver", focus on a customer driven innovation and commitment to absolute customer satisfaction. Their diverse capabilities and dynamic solutions allow them the ability to achieve the highest quality levels of efficiency and productivity. Sustainability is a high focus of the Standex product line, with long-term sustainability improvements continuing to drive consistent technological growth. Green switching applications are a growing demand for their customers, and they ensure to deliver.
CONTA-CLIP has been a manufacturer and supplier of electrical and electronic connection components since 1978, in Hövelhof, Germany. The company designs products for connectivity such as terminal blocks, and for cable management, they produce various cable entry systems and glands. Their electronics department lists fuses, modules, and relays along with electric housing systems and PC board connectors. They serve numerous industries that require monitoring and controlling of signals and processes such as Machinery Construction, Electrical Engineering, Production, Supply and Energy Technology as well as Traffic Engineering and Smart City solutions.
Isobaud Inc., based in Santa Clara, California, is a manufacturer of optoelectronic devices and sensors serving industries such as healthcare, military, and aerospace. Its products include optocouplers, infrared emitters, and magnetic digital isolators, and it also works with end users to deliver custom solutions. The company’s IB14C1 and IB14C2 radiation-tolerant phototransistors consist of silicon phototransistors mounted in a wide-angle hermetic TO-18 package and have an operating temperature of -65°C to +125°C. The IB8240, IB8241, and IB8242 magnetic digital separators can attain speeds of up to 150mbps and have a 60-year life at rated working voltage.
Voltage Multipliers (VMI), Inc., established in 1980 with headquarters in the USA, is a manufacturer of high-voltage semiconductor products. The company's product line includes high-voltage diodes, multipliers, rectifiers, optocouplers, and power supplies. Voltage Multipliers Inc.'s capabilities include in-house testing of diodes, rectifiers, multipliers, bridges, and power supplies. The company's products include X-ray power supplies, laser technology, oscilloscopes, military aircraft, and radar jamming equipment, among many others. Voltage Multipliers Inc. also provides custom product design and production.
Win Source Electronics is an AS9120B-certified business-to-business (B2B) distributor of electronic products, accessories and components that was established in Shenzhen, China, in 1999. The company stocks products from over 3,000 manufacturers, including C&K Components, Fujitsu Electronics America, and American Zettler, Inc. These products include power supplies and converters, memory modules, and RFID devices for wireless communication. The company primarily markets its products to clients in Asia's consumer electronics, energy, and industrial manufacturing sectors.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | MURRELEKTRONIK INC. |
18.2%
|
| 2 | CONTA-CLIP Verbindungstechnik GmbH |
15.9%
|
| 3 | Littelfuse, Inc |
13.6%
|
| 4 | Standex Electronics, Inc. |
13.6%
|
| 5 | Vishay Intertechnology, Inc., |
11.4%
|
| 6 | Skyworks Solutions, Inc. |
11.4%
|
| 7 | Voltage Multipliers, Inc. |
9.1%
|
| 8 | ISOBAUD, Inc |
4.5%
|
| 9 | WIN SOURCE ELECTRONICS |
2.3%
|
Derivation Method
The ranking is calculated based on the click share within the optocoupler page as of December 2024. 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
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
5 | 71.4% |
|
Germany
|
1 | 14.3% |
|
China
|
1 | 14.3% |
3 products found
3 products
Würth Elektronik
30+ people viewing
Last viewed: 1 day ago
Standard Response
■Features ・High insulation voltage ・Good internal isolation stability ・Stable CTR with full operation ・Various CTR binning options available ・...
Würth Elektronik
20+ people viewing
Last viewed: 1 day ago
Standard Response
■Features ・High insulation voltage ・Good internal isolation stability ・Stable CTR with full operation ・Various lead frame options ■Application...
Würth Elektronik
20+ people viewing
Standard Response
■Features ・Zero cross and non-zero cross (random phase) types -Various trigger currents and peak-off voltages available ・High insulation voltage ...
