This section provides an overview for signal relays as well as their applications and principles. Also, please take a look at the list of 27 signal relay manufacturers and their company rankings. Here are the top-ranked signal relay companies as of November, 2024: 1.Addison Electric, Inc., 2.Tai-Shing Electronics Components Corporation, 3.NetSource Technology, Inc..
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Signal relays are components for electric circuits that turn on and off electrical signals of relatively low current.
Products that open and close signals of about 2A or less are common.
Signal relays are used to switch electrical signals on and off. They are used in products that have electric circuits and have a wide range of applications, from home appliances to industrial equipment.
Specific applications are as follows:
Mainly used by mounting on control boards. However, some products are available with an optional dedicated socket for mounting on the DIN rail of the control panel.
Signal relays consist of a casing, input/output terminals, insulating parts, and contact switching parts.
The casing protects the signal relay. In most cases, it is made of resinous insulating material. It protects human contact with the electrical circuit. In some cases, simple specifications and serial numbers are printed on the casing.
These are terminals for sending and receiving signals. Typical input/output terminals are in the form of pins, with multiple pins protruding from the signal relay. Terminals are inserted into special sockets or soldered to electrical circuits.
These parts are used to support signals while insulating them. Generally, insulating materials such as resin are used because input/output circuits will be interfered with if supported by metal structures. The shape varies depending on the product.
These parts open and close contacts based on input signals. The construction of the component varies depending on the type of signal relay. In the case of a contact relay, it consists of a movable iron piece, a contact, an electromagnetic coil, and so on. In the case of non-contact relays, photo couplers and other parts are used as contact open/close parts.
Signal relays can be classified into two main types according to the type of contact point: contact relays and non-contact relays.
Contact relays are relays that actually use electromagnetic coils and springs to open and close electrical contacts. They are also called mechanical relays. Generally, an electromagnetic coil is used to open and close the contacts by moving the movable iron strip to which the contacts are attached.
Silver, which has low electrical resistance, is used as the contact material. Products plated with soft gold to reduce contact resistance are also available. Since contact wear and deterioration of the moving parts occur, the relay is characterized by a life span that depends on the frequency of contact opening/closing.
A contactless relay is a relay that has no mechanical contacts. They are also called solid-state relays.
Contacts are opened and closed by semiconductor electronic components, such as MOSFETs. Since the contacts do not actually move, there is no residual life, depending on the frequency of contact opening and closing. Therefore, it has a longer life than a contact relay. However, the semiconductor components are sensitive to high temperatures and heat, making them unsuitable for use in high-temperature environments.
Relay contacts are divided into a-contact, b-contact, and c-contact. Each contact is used separately to configure a control circuit.
1. A-Contact
The A-contact is a contact that is open when no signal is input to the input terminal and conducts when a signal is input. It is also called a normally open contact or a make contact. It is the most common type of contact that provides signal isolation only.
2. B-Contact
The B-contact is a contact that conducts when no signal is input to the input terminal and opens when a signal is input. It is characterized by the opposite action of the A-contact and can invert the input signal. It is often used in interlock circuits and fault interrupting circuits.
3. C-Contact
The C-contact is a three-terminal contact combining a and b contacts. It has three terminals: a common terminal, an A-contact terminal, and a b-contact terminal. When no signal is input to the input terminal, the common B-contact terminal is conducting and the common-a contact terminal is open.
When a signal is input to the input terminal, the common terminal-B contact terminal is open and the common-a contact terminal is conducting. It is used for circuits that switch between forward and reverse rotation. Another feature of the C-contact is that it is applicable only to contact relays.
*Including some distributors, etc.
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KEMET has a portfolio of over 1,600 patents serving the automotive, aerospace, industrial, telecommunications, computing, consumer, and medical devices. KEMETs devices provide filtering, sensing, energy storage, power conversion, and haptic actuator technology. Among these devices are capacitors, electromagnetic compatibility (EMC) components, resistors, circuit protection devices, inductors, sensors, Piezoelectric devices, release, transformers, and engineering kits.
Founded in San Clemente, California in 1997, NetSource Technology, Inc. is an independent stocking distributor of electronic components and global procurement services, providing comprehensive supply chain solutions to OEMs and contract manufacturers worldwide. NetSource Technology serves the aerospace, automotive, IoT, medical, mobile device, and telecommunications industries and related companies. NetSource Technology specializes in locating hard-to-find, obsolete, end-of-life and highly allocated components with long lead times, supporting customers throughout the complete supply chain lifecycle.
Addison Electric originally opened its doors in 1980 and is headquartered in Addison, Illinois. Addison Electric provides systems integration, distribution, and service for industrial tools and equipment. Product lines include motors & gears, drives, controllers, sensors, devices, fuses, blocks, holders, low voltage control products, and thermal management. Service options include electrical and motor services such as PLC programming and clutch and brake repair, as well as dyne load testing and drive and motor dyne testing.
Shinmei Electric Co.,LTD. was established in 1958 and is a manufacturer and supplier of electronic components based in Kawasaki, Kanagawa, Japan. The company produces various electronic parts such as microswitch, solenoid, detection switch, tactile switch, and slide switch. The products have been applied in various usages such as office automation, home appliance, communication equipment, health equipment, and audio equipment. The company has obtained certificate of ISO 9001 and IATF 16949 standard certification.
Fujitsu Component Limited was founded in Japan jointly by Fujitsu Limited and Takamizawa Electric Co. Ltd in 1995 which is a global manufacturer and seller of switching devices (relays) and Human interface devices such as keyboards, thermal printers, touch panels and switches. Their relay portfolio consists of relays for signal, power and automobiles applications. In addition they also manufacture eco friendly relay products. Fujitsu has establish several global support centers worldwide to ensure uninterrupted service. The group has adopted an environment philosophy which states that they will adhere to the corporate activities while improving their coexistence with the environment.
Ningbo Xingchuangzhi Electric Appliance Co., Ltd., established in 2014, and located in Yuyao City, Zhejiang province, China, is a manufacturer that specializes in producing micro-electromagnetism relays. Its product range encompasses control relays, signal relays, power relays, as well as communication relays, and magnetic latching relays. These are playing pivotal roles in managing low-power signals, maintaining relay positions, and facilitating communication systems. These products are used extensively in various sectors, including automotive, safety, and telecommunications.
Tai-Shing Electronics Components Corporation, established in 1973 and based in Taoyuan City, Taiwan, is a relay manufacturer. The company runs factories in Taiwan and Ningbo, China, producing relays under the TTi brand. It holds certifications such as TS16949, ISO 14001, and ISO 9001, which are indicative of its adherence to quality manufacturing and management practices. It has developed a series of relays used in industries including transportation, telecommunications, home appliances, medical care, automobiles, and security. Its relays are certified by UL/cUL, VDE, TÜV, and CE to ensure compliance with international standards.
Fujitsu Components America, Inc. is a global leader in electronics manufacturing services (EMS), providing integrated services and solutions for OEMs and ODMs operating in the automotive, communications, computing, consumer, industrial and medical sectors. Fujitsu Components America’s Products include relays, touch panels, and wireless modules, and input and pointing devices. Fujitsu Component America serves customers across volume spectrums in variable-mix, variable-volume production.
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.
Founded in 1984, Xiamen Hongfa Electroacoustic Co., Ltd. is a manufacturer specializing in relays, connectors, precision manufacturing parts, and automation equipment. Headquartered in Xiamen, China, the company has established 30 subsidiaries worldwide, serving over 120 countries and regions. HONGFA offers customized solutions utilizing its electrical appliances and complete equipment. Its wide range of products finds applications in various industries such as smart homes, smart grids, industrial control, automotive and railway transportation, and the Internet of Things. The company has received multiple awards, including the 2023 National Enterprise Culture Outstanding Achievement by China Enterprise Confederation and China Entrepreneurs Association.
Hengstler, headquartered in Aldingen, Germany, is a custom manufacturer established in 1846, specializing in industrial components for counting and control applications. They offer a comprehensive range of products, including counters for measuring and counting objects, rotary encoders used for electrical signals, relays for controlling electric circuits, printers for label and document printing, as well as various types of cutters for materials like paper, film, and fabric. Hengstler products are manufactured to order, either in-house or outsourced, in accordance with the Kanban system and FBS system.
Panasonic Industry Europe is the European branch of Panasonic, a global manufacturer of electronics and houseware, originally founded in 1918. Panasonic Industry Europe manufactures in 4 categories: components, devices, energy & building, and automation devices & solutions. Components include relays, capacitors, resistors, sensors, switches, connectors, couplers. Devices include wireless connectivity, e-bike systems, motors, compressors, thermal solutions, GPS antennas, as well as electronic materials. Energy & building includes batteries, fuel cells, solar sells, power tools, and home IoT. Automation devices & solutions include sensors for factory automation, industrial motors, laser welding, and more.
Zhejiang Fanhar Electronics, founded in China, is a manufacturer of relays used in household appliances, electric appliances, and smart home automation. The company's product portfolio includes Power Relays, Industrial Relays, Electric latching Relays, Signal Relay and New energy Relays. The company serves industries such as Oil and Gas, Aerospace and Defense, Automotive and Transportation, Construction, and Power Generation. The company has 20 national patents and also provides services such as mold manufacturing, design and development, prototyping and technical support.
Goodsky Electric Co., Ltd., established in 1989, and based in Taiwan, is a manufacturer and supplier of electromechanical relays and related products. The company’s products include power relays, signal relays, automotive relays, general-purpose relays, and latching relays, applied in home appliances, automotive, industrial automation, telecommunications, and more. Known for reliability and precision, Goodsky's relays excel in critical applications. They prioritize customer satisfaction, consistently providing advanced solutions to meet market demands. Goodsky delivers impressive discounts through good products, compliance with international standards, and outstanding customer service and technical support.
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.
Hasco Relays and Electronics International Corp., established in 1976, and located in New Hyde Park, New York, USA, is a manufacturer specializing in various relay products for diverse industries. Its product range includes power relays, automotive relays, safety relays, signal relays, and reed switches, catering to applications in telecommunications, automotive systems, safety systems, and more. The company's factory holds certifications such as ISO, UL (Canada and the US), and TUV/VDE. Its products play critical roles in controlling power circuits, ensuring safety in emergencies, and facilitating low-power applications.
Zhejiang HKE Relay Co., Ltd, established in 1976 in Ningbo, Zhejiang, China, is a manufacturer of various relay products for multiple industries. Its product line comprises signal relays, power relays, automotive relays, magnetic latching relays, and flashers, serving applications in telecommunications, automotive systems, and more. These relays find use in various consumer and industrial devices such as air conditioners, refrigerators, and car alarms. The company maintains stringent quality control systems conforming to ISO9001 and ISO/TS16949, and its environmental practices meet ISO14001 standards.
World Products, Inc. is an electronic component manufacturer founded in 1970 and headquartered in Sonoma, California. The company produces components for electronic devices including gas discharge tubes, varistors, spark gap protectors, diodes, and antennas. It has distribution partnerships with various other component manufacturers such as Ebusar high voltage current relays, Pilkor film capacitors, Nexem miniature signal relays. Components it creates and distributes are suitable for telecom, automotive, surge suppression, power supply, and wireless industries. The company has a global reach with an additional office in Shenzhen, China and a Wireless Business Group composed of engineers who work with OEMs internationally.
Celduc Inc. through Celduc Transfo was founded in 1960 as a manufacturer of transformers. Celduc Inc. is based in, France. Celduc Inc. was officially created in 2020 and headquartered in Centerport, New York. Celduc creates electronics and customized products for industries including railway, plastic, packaging, medical, and electronics. Celduc’s main product lines include solid state relays, magnetic proximity sensors, reed relays & switches, and customized products. Customized products are versions of other products adapted for use in industries with special needs such as nuclear power, aircraft, and agriculture.
NOARK is based in Pomona, California, and is a global manufacturer of low-voltage electrical components for industrial applications. NOARK specializes in motor controls and protection for original equipment and manufacturers with products covered by five-year limited warranties. NOARK parts are used in numerous solutions such as HVAC and refrigeration, industrial food equipment, panel builders, digital storage, and engine generators. NOARK’s main product lines include low-voltage power circuit breakers, molded case circuit breakers, miniature circuit breakers, overload relays, and circuit control devices.
Struthers-Dunn is headquartered in Timmonsville, South Carolina, and was established in 1923, making it one of the oldest relay manufacturers in the world. The company’s relays and related electrical components are utilized in traffic signals, power generation, factory automation, construction, and water treatment applications. The company’s product lines primarily consist of relays such as general purpose, motor, timer, and sequencing relays. Other products include accessories and special-purpose relays for super high voltage applications such as gas turbine power plants.
Fuji Electric Equipment Control was established in 2008 in Saitama-ken, Japan is a manufacturer of power distribution and control equipment. The company boasts an extensive and diversified product portfolio including motor controls, MV distributors, energy control equipment, LV distributors, and industrial control relays. These products find applications in construction as magnetic contactors, automotive as manual motor starters, home appliances as air circuit breakers, health care devices as sensors and switches, and in environmental management for quality assurance and protection of high-voltage electric power and management of low-voltage consumption rate.
Elesta GmbH, founded in 1997 and based in Bad Ragaz, Switzerland, is a developer and producer of electromechanical parts and sensor products. The company was first established in 1952 as ELESTA Elektrotechnik AG where relays, measurement and control systems, and optical sensors were created until 1996. Elesta GmbH is also part of the PILZ GmbH & Co. KG Group of Companies, and participates in both international and national standardization committees, participates in industry-wide associations for the electrical sector, and encourages collaboration with academic institutions and government agencies.
OMRON Electronic Components Europe is the European division of OMRON Corporation, which is based in Kyoto, Japan, and has head offices around the world. The European division has its own development and manufacturing facilities providing local customer support provided in all European countries. The European division produces PCBs and other components for the eSports, alternative energy, automated test equipment, and entertainment industries. The company’s four primary product divisions are relays, switches, connectors, and sensors including flow sensors and IoT sensors.
CODICO, or Component Design-In Company, is a distributor of high-grade active and passive electronic components and connection technology products. Operating as an independent, private company headquartered in Perchtoldsdorf, Austria, it also maintains product competency centers in Munich, Treviso, and Stockholm, for its design-in services. Its services encompass cross-competency project management, consultation, and extended support. The company ensures timely deliveries and monitors pricing while providing technical support throughout the development of high-caliber electronic components. Customizable logistics solutions and collaboration with suppliers are also offered by the company to provide insights into technology trends and product roadmaps.
Hybrid Electronics is a global distribution specialist of electronic components, with access to over 50 million unique components. Among the markets HE serves are the aerospace, automotive, communications, defense, industrial, medical, national security, and test & measurement industries. In addition to components, HE also provides quality and compliance testing, counterfeit detection, upscreening, and other forms of quality control. Examples of component subtypes that HE offers include ICs, batteries, capacitors, semiconductor products, sensors, circuit protection, interconnectors, filters, optoelectronics, relays, switches, power supplies, and cables and cable assemblies.
Ranking as of November 2024
Derivation MethodRank | Company | Click Share |
---|---|---|
1 | Tai-Shing Electronics Components Corporation |
7.5%
|
2 | NetSource Technology, Inc. |
7.5%
|
3 | Addison Electric, Inc. |
7.5%
|
4 | NOARK Electric North America |
6.3%
|
5 | KEMET |
6.3%
|
6 | Ningbo Xingchuangzhi Electric Appliance Co.,Ltd. |
5.0%
|
7 | World Products, Inc. |
5.0%
|
8 | Celduc Inc. |
5.0%
|
9 | Hasco Relays and Electronics International Corp. |
3.8%
|
10 | Zhejiang HKE Relay Co., Ltd |
3.8%
|
Derivation Method
The ranking is calculated based on the click share within the signal relay page as of November 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 (%) |
---|---|---|
China | 4 | 25.0% |
United States of America | 3 | 18.8% |
Japan | 3 | 18.8% |
Germany | 3 | 18.8% |
Taiwan | 2 | 12.5% |
Switzerland | 1 | 6.3% |
10 products are listed.
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The Cui Devices signal relay is ideal for switching of low -level current with the maximum switching current of 2A or 3A. Our low -signal relay fe...