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This section provides an overview for micro relays as well as their applications and principles. Also, please take a look at the list of 25 micro relay manufacturers and their company rankings. Here are the top-ranked micro relay companies as of December, 2024: 1.miunske GmbH, 2.MRS Electronic GmbH & Co. KG, 3.Pickering Electronics.
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Engaged in research on nitride semiconductor growth using the MBE method at Waseda University Graduate School. After graduating from graduate school in 2016, he joined a non-ferrous metal manufacturer.
Engaged in equipment maintenance and engineering work at metal smelting plants. Moved to a chemical manufacturer in 2022. Engaging in similar tasks.
A micro relay is a compact device among relays, designed to switch electric circuits on and off in response to external signals. Smaller than typical relays, they range in size from a few centimeters to just a few millimeters, making them ideal for space-constrained applications such as control systems and electronic equipment.
Notable for their high-speed switching capability, micro relays are suitable for applications requiring rapid signal processing and timing control. They are reliable in operation and have a long service life. However, due to their small size, their current capacity is limited. For large current control, larger relays should be considered.
Micro relays find applications in various fields:
In smartphones, they control circuits and are used for functions like camera auto-focus or speaker switching. Office automation equipment, like printers, also uses micro relays for controlling paper feed and cartridge positions.
Widely used in automobiles, these relays manage window operations, switch headlights, and control bright mode settings. Automobile door lock systems also depend on Micro Relays for locking and unlocking mechanisms.
In medical devices like electrocardiographs, micro relays are used to acquire and process signals. They also play a role in sphygmomanometers, helping to control pressure sensors and switch display devices.
Comprising a coil, contacts, and springs, micro relays are enclosed in a resin or other insulating material casing for protection.
These relays often use electromagnetic coils made from thin conducting wires that generate a magnetic field to operate the contacts when electrified.
Contacts, made of electrically conductive metals like gold, silver, and copper, control the electrical flow.
Springs in micro relays apply the necessary pressure to the contacts, ensuring reliable switching between open and closed states.
When selecting a micro relay, consider the following:
Choose a micro relay with a coil voltage that matches your system's operational voltage, ranging from low voltage options like 3.3 VDC or 5 VDC to higher voltage models at 12VDC or 24VDC. Select relays with built-in protection diodes to handle back EMF currents that could affect other devices.
Assess the contact current, the maximum current that the relay can handle. Due to their compact size, most micro relays have a low current rating, typically 2A or less. Exceeding this rating can cause contact welding or other malfunctions.
Micro relays can be integrated into circuits through various methods. Socket connections using pins are common, but there are also surface-mountable products.
Consider the number of poles (number of contacts) and contact configurations, which include a-contact (normally open), b-contact (normally closed), and c-contact (a combination of the two).
*Including some distributors, etc.
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Littelfuse founded in 1927, is an industrial manufacturing company empowering a sustainable, connected, and safer world, headquartered in Chicago, Illinois, United States. The company's product portfolio includes the solutions for both individual and entire systems, as a global manufacturer of technologies in circuit protection, power control, and sensing. Across more than 20 countries, and with approximately 18,000 global associates, partner with customers to design and deliver advanced solutions. Serving over 100,000 end customers, their products are found in industrial, transportation, and electronics end markets.
Ningbo Forward Relay Corp.,Ltd., founded in Zhejiang, China, in 1986 is a manufacturer of electromagnetic relays. The company's product portfolio includes signal relays, automotive relays, industrial relays, and power relays. The company serves industries such as Oil and Gas, Aerospace and Defense, Automotive and Transportation, Construction, and Power Generation. The company also provides services including national distribution, product selection, customized services, technical support and customer service. They have SO9001, IATF16949, ISO14001 quality certifications.
TE Connectivity Ltd., started in 2007 and headquartered in Schaffhausen, Switzerland, is a designer and manufacturer of sensor and connectivity solutions for harsh conditions. It operates three primary segments, namely transport, industrial, and communication solutions, and its product portfolio includes automotive connectors, fiber optic connectors, analog power meters, RTD sensors, and circuit breakers. It serves customers in approximately 140 countries and several industries, including aerospace, automotive, rail, IoT connectivity, and E-mobility. The company manufactures 192 billion products annually and has invested over 610 million USD in research development and engineering.
Omron Corporation, started in 1933 and headquartered in Kyoto, Japan, is a manufacturer of automation components, equipment, and systems, and it developed the first contactless proximity switch in 1960. It has four domains, including industrial automation, electronic components, healthcare, and social systems, and it provides products and services in around 120 countries and regions. Some of its products include microsensing devices, access control systems, industrial robots, surveillance cameras, and blood pressure monitors. In 1971, it developed the first online cash machine, and in 1972, it established Japan’s first welfare factory.
Pickering Electronics Ltd. was established in 1968 and is headquartered in Clacton-on-Sea, Essex, United Kingdom, as a manufacturer of reed relays and associated products. They offer an extensive range of product categories, including Single-in-Line (SIL) reed relays, Dual-in-Line (DIL) reed relays, surface mount reed relays, and high voltage reed relays. Some of the key industries that utilize their reed relays and associated products include telecommunications, test and measurement, medical equipment, industrial automation, and aerospace. These industries rely on Pickering Electronics' products for applications such as signal switching, automatic test equipment, medical device testing, process control, and more.
Rao Electromechanical Relays Private Limited, founded in 2009 and headquartered in New Delhi, India, is a manufacturer of a wide range of power relays. The company specializes in fabricating automobile relays, starting relays, and electric power relays. Its automobile relays can be used for various applications, including starter motors, radiator fans, and security systems. It has obtained the ISO 9001:2015 certification that emphasizes excellent quality management systems. It can also manufacture the relays according to the customer's specifications.
MRS Electronic GmbH & Co., KG., established in 1971 and based in Rottweil, Germany, is a manufacturer of vehicle electronics and a supplier of engineering services. The company's range of products includes gateways, controllers, and relays. It also offers custom hardware and software development services to its customers. Its products can be used for various applications such as hydraulic control, light control, and motor control. It has passed the ISO 9001:2015 and ISO 14001 certifications that pertain to quality and environmental management systems.
Song Chuan Group Company, a company founded in 1974, based in Taipei, Taiwan, is a manufacturer and supplier of electromechanical power relays. The company offers various products such as PV relays, HV relays, MV relays, and relays for home appliances. These products are used in industries like new energy power generation, automotive, and industrial control. The company also provides customer services that include technical support, catalog request, and global coordination. It also provides switching solutions for Industrial, Automotive, Appliance, HVAC, Power and Green Energy Applications.
Progressive Automotives Pvt. Ltd., established in 1987 and headquartered in Jharkhand, India, operates as an OEM manufacturer and supplier, specializing in automotive switches, accessories, and wiring harness solutions. The company's product range includes various automotive switches, lamps, and accessories, such as combination switches, starter push-button switches, main line switches, reverse light switches, hazard warning switches, and more. It serves a diverse clientele, including companies like Tata Motors Ltd., Minda Stoneridge Instruments Ltd., Indications Instruments Ltd., Force Motors Ltd., Ashok Leyland, and many others.
Sargun Auto Electricals, established in 2008 and based in New Delhi, India, is a manufacturer and supplier of various kinds of relays. The company's range of products includes universal relays, automotive relays, and electric micro relays. Its automotive relays have 4 pins with voltages of 12 V and currents of 15 A. The products are specifically used for applications in the automobile industry and are made from plastic material to minimize harm.
Miunske GmbH, established in 1996 and located in Großpostwitz, Germany, is a manufacturer and supplier of commercial vehicle components and mobile working machines. The company manufactures relays and accessories, power distribution units, and switches and lamps. Its frequency relays, the subcategories of relays and accessories, have 95 Hz switch-off frequencies and 100 Hz switch-on frequencies with nominal voltages of 12V. It has passed two prestigious certificates namely ISO 9001 and ISO 14001.
Rajasthan Metal Industries, established in 1988 and headquartered in Jaipur, India, is a manufacturer and supplier specializing in electrical accessories for automobiles. The company's product range includes various components, including ceramic connectors, tail lamps, automotive lamp holders, ceramic fuse boxes, automotive assemblies, and more. These products cater to an electrical and automobile customer base, including service centers, wholesalers, and retailers. The company also supplies products from different automotive brands, such as Hella, LuMax, Fieam, Minda, and Autopal.
PVG Technology & PVG Automotive Pvt., Ltd., established in 2012 and based in Pune, India, is a manufacturer of automotive and industrial products and a supplier of pertinent services. The company's range of products includes electric vehicle components, 4 pole receptacle connectors, and injector adaptor caps and hats. It also offers product design and development, value and reverse engineering, and manufacturing services. Its electric vehicle components, junction boxes, are suitable for 24, 36, and 48 V systems and applicable for battery-operated 2 & 3-wheelers.
Waytek Inc., founded in 1970 and headquartered in Chanhassen, Minnesota, is a distributor of automotive wire and DC electrical components across North America. The company offers a broad line of products, including circuit breakers, cable ties, and connectors, serving wire harness manufacturers, OEMs, and upfitters. It sources the products from manufacturers such as GEP Power Products, Lovato Electric Inc., and East Penn Manufacturing. In 1980, the company stopped producing wire harnesses and started concentrating on distribution. In 2021, CIT Relay and Switch awarded it the Blast-Off Growth Award for being among the growing distributors of Picker Components products.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | miunske GmbH |
18.8%
|
| 2 | MRS Electronic GmbH & Co. KG |
8.3%
|
| 3 | Pickering Electronics |
8.3%
|
| 4 | Rajasthan Metal Industries |
6.3%
|
| 5 | Song Chuan |
6.3%
|
| 6 | NARVA |
4.2%
|
| 7 | HELLA New Zealand Limited |
4.2%
|
| 8 | Autosparks Limited |
4.2%
|
| 9 | PVG Technology & PVG Automotive Pvt. Ltd |
4.2%
|
| 10 | Rao Electromechanical Relays Private Limited |
4.2%
|
Derivation Method
The ranking is calculated based on the click share within the micro relay 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 Kingdom
|
4 | 28.6% |
|
United States of America
|
2 | 14.3% |
|
Germany
|
2 | 14.3% |
|
India
|
2 | 14.3% |
|
China
|
1 | 7.1% |
|
Taiwan
|
1 | 7.1% |
Ireland
|
1 | 7.1% |
Austria
|
1 | 7.1% |
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