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This section provides an overview for printed circuit board (pcb) relays as well as their applications and principles. Also, please take a look at the list of 18 printed circuit board (pcb) relay manufacturers and their company rankings. Here are the top-ranked printed circuit board (pcb) relay companies as of January, 2025: 1.Surmotech, 2.Cit Relay & Switch, 3.Omron Microscan.
Table of Contents
A PCB relay is a type of relay mounted on printed circuit boards, serving as an electrical component to switch between input and output signals using an ON/OFF control signal.
Originally, relays were mechanical, using a simple structure to control ON/OFF switches. Modern developments include solid-state relays (SSRs) and photorelays, which employ semiconductor and light-emitting/receiving elements.
PCB relays are versatile and used for controlling circuits in a range of products. Applications span from small signal level switching to managing large currents in motors and lamps. Common examples include home appliances like washing machines and refrigerators, audio-visual equipment, commercial devices, and automotive control boards.
PCB relays can be categorized into mechanical relays, SSRs, and photo relays. Mechanical relays function by controlling a coil to conduct or disconnect contacts. They physically separate the primary and secondary sides, preventing noise leakage but limiting miniaturization due to physical contact.
Semiconductor relays like SSRs and photo relays use a photodiode on the input side and a phototransistor or MOSFET on the output side. The ON/OFF signal is converted to light, then to an electrical signal, maintaining complete electrical separation between the primary and secondary sides. This design offers faster switching speeds and reduces noise interference compared to mechanical relays.
*Including some distributors, etc.
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Surmotech, founded in 1991 and headquartered in Victor, New York, USA, is a manufacturer of printed circuit board assembly, electro-mechanical assembly, and electronic testing products. The company offers diverse product varieties, including custom PCBs, electromechanical assemblies, and electronic testing products. These offerings provide benefits such as precision manufacturing, quality control, and streamlined production processes. It caters to a wide array of industries, including telecommunications, automotive, medical devices, and consumer electronics, where precise electronic components are pivotal. It is ISO, CE, RoHS certified, delivering optimal-quality, stable electronic manufacturing products in the field of electronic manufacturing.
Omron Automation was originally established in 1933. Omron Automation is a producer and manufacturer for industrial automation solutions including robotics, sensing, motion, logic, and safety. Industries include automotive automation, electric vehicle manufacturing, food and beverage packaging, semiconductor and manufacturing electronics, life sciences automation, logistics & warehouse automation, machine tool, oil and gas, water and wastewater, entertainment, security and detention, and other industries. Some of Omron Automation’s product categories include machine automated controllers, RFID solutions, safety laser scanners, safety outputs, smart cameras, vision sensors, machine vision software, servo systems, articulated robots, parallel robots, SCARA robots, photoelectric sensors, and rotary encoders along with many software-based solutions.
CIT Relay & Switch is based in Rogers, Minnesota, and is a manufacturer of RoHS-compliant electromechanical relays and switches with the ability to offer integrated solutions for individual customers’ design needs. CIT’s relays are commonly used in automobiles and low-voltage operations. CIT’s switch catalog includes varieties such as surface mount, panel mount, tactile, pushbutton, and more. CIT has a lab for a new design, validation product testing, IQC, failure analysis, and material testing. IQC ensures documented reliability by testing contact material, resistance, dielectric strength, and other parameters. CIT also provides engineering and application support for materials and processes.
Amperite Co., through OlympicControls Corp., was founded in 1968 with roots going back to 1922. The company serves military and industrial market segments with motor controls, circuit controls, alarms, and other systems. The company offers four specific, focused business units that maintain identities in separate end-user applications: Amperite Co., OlympicControls Relays, T-Bar Relays, switches, and Fuel Pumps. Amperite manufactures time delay relays, flashers, and controlling devices. OlympicControls offers customized products manufactured to customer specifications. T-Bar Relays serves OEMs and customers such as Raytheon and Learjet. Fuel Pumps serve military and heavy-duty trucks.
Marsh Electronics, Inc. is a distributor of electronic components that was established in 1937 in Milwaukee, Wisconsin. The company offers various passive, electromechanical, and power semiconductor products. These products include potentiometers for regulating current and voltage, capacitors for energy storage, and terminal blocks. The company chiefly serves clients in the food and beverage, energy, and medical sectors. Some of its notable customers include companies such as GE Healthcare, Harley-Davidson, and Rockwell Automation.
WAGO was founded in Minden in 1951 in then West Germany. WAGO manufacturers components for the automotive, digital lant, elevator and escalator, energy, intralogistics, lighting, marine & offshore, mechanical engineering, and railway systems industries. WAGO produces, electrical interconnections such as rail mount terminal blocks, wire connectors, PCB interconnects, pluggable connection systems, panel feedthrough connections, and EMC shielding. Other types of products include relays, protection devices, fieldbus couplers, ethernet switches, touch panels, edge devices, and wireless devices.
Schneider Electric S.E. is headquartered in Rueil-Malmaison, France, and has been operating since 1836. Schneider Electric provides a number of products and services including electrical car charging, energy management software, surge protection devices, load banks, servers and HMIs, valve and valve actuators, feeder automation, grid automation, and SCADA software products, data center cooling and software, home automation and security, light switches, motion control and robotics, signaling units, solar and energy storage, RFID systems, as well as other hardware, services, and software.
E. Dold & Söhne GmbH & Co. KG, founded in 1928, is a German manufacturer based in Furtwangen, Baden-Württemberg, specializing in industrial components and automation solutions for plant engineering and machine building. The company's offerings encompass automation products, including electronic enclosures, relay modules, safety relays and switches, and solenoid interlocks with key transfers. The company’s products and solutions cater to various sectors within industrial automation, including industries like food and beverages for factory automation. Additionally, the company serves process automation industries such as raw material processing and recycling, while also providing solutions for logistics automation in sectors like drive and conveyor technology.
RayMing Technology, founded in 2005 and based in China, is a manufacturer of PCBs and related components. Its offered services include Printed Circuit Board Assembly, PCB Fabrication, and Component Sourcing services from PCB Production to PCB Prototypes. The company has served more than 6,000 Contract Assemblers and more than 10,000 Electronic Engineers. Its manufacturing assets that help make High-End PCB products include PCB Testing Laboratory, PCB Fabrication Equipments, Electronics Laboratory and PCB Assembly Equipments.
PCBasic Co., Limited, was established in 2003, is an assembly manufacturer based in Shenzhen, China. The company provides global fastener and supply with all sort of fastener and hardware requirements. It carries both inch and metric sizes, in various materials both ferrous and non-ferrous. It provides cheap and fast PCB prototypes and offers prototype PCB assembly services for most industries.It is capable of meeting different SMT PCB assembly needs and has a monthly total mounting capacity of 50 million points. Its state-of-the-art equipment and efficient process makes it possible to handle high-volume orders with ease and deliver on time.
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.
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.
Rockwell Automation, Inc. was founded in 1903 and is headquartered in Milwakee, WI. Rockwell Automation provides industrial automation and digital transformation solutions around the world. Rockwell Automation operates through their intelligent devices, software & control, and lifecycle services segments with both hardware and software products and services. The Intelligent Devices segment offers drives, motion, safety, sensing, industrial components, and configured-to-order products. The Software & Control segment provides control and visualization software and hardware, information software, and network and security infrastructure solutions. The Lifecycle Services segment provides consulting, professional services and solutions, and connected and maintenance services through independent distributors.
PUI is headquartered in Irvine, California. The company is an authorized distributor selling electronic components from manufacturers with a reputation for high quality and dedication to customer service. The company’s 5 primary product segments include fans, audio devices, capacitors, connectors, and power supplies. The company also offers other products such as fuses, cables, and other subcomponents. The company provides services including bonded inventory, EDI, and barcoding to insure ease of receiving and inventory management.
Accele Electronics, Inc. is based in Santa Fe Springs, California. Accele has a 30 year history as a manufacturer and distributor of automotive technology solutions, also offering services such as, installation and support throughout its 30+ year history. Example products include LCD monitors, headrest monitors, mirror monitors, drive and park sensors, video recording and camera kits and accessories, A/V switchers, RV camera systems, cables, lighting, HUD, security systems, fuses and circuits, relays, bus and coach amenities, as well as comfort and convenience items.
Yaskawa America Inc., started in 1967 and based in Waukegan, Illinois, is a manufacturer of machine controllers, industrial robots, and variable frequency drives and is part of Yaskawa Electric Corporation. Some of its products include industrial AC drives, machine controllers, and IEC programmable robots. The company incorporates the Kaizen method of continuous incremental improvements and Total Quality Management processes to prevent manufacturing defects, and its distributors must be certified and re-certified every two years. It is ISO 9001 certified and is the only industrial drives and motion control manufacturer to win the Deming Medal.
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 January 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Surmotech |
11.0%
|
| 2 | Cit Relay & Switch |
11.0%
|
| 3 | Omron Microscan |
9.9%
|
| 4 | Amperite Co. |
7.7%
|
| 5 | Celduc Inc. |
6.6%
|
| 6 | Schneider Electric SE |
6.6%
|
| 7 | RayMing Technology |
5.5%
|
| 8 | PCBasic Co., Limited |
5.5%
|
| 9 | PUI - Projections Unlimited, Inc. |
5.5%
|
| 10 | E. Dold & Söhne GmbH & Co. KG. |
5.5%
|
Derivation Method
The ranking is calculated based on the click share within the printed circuit board (pcb) relay page as of January 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
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 | 50.0% |
|
Germany
|
2 | 20.0% |
|
China
|
2 | 20.0% |
|
France
|
1 | 10.0% |
86 products found
86 products
FUJITSU COMPONENT LIMITED
70+ people viewing
Last viewed: 11 hours ago
Very Fast Response
1c, 25A, two-winding latching, reflow compatible product available, 30A current carrying capacity, silver tin oxide indium contacts, coil rated vol...
JEL SYSTEM CO,LTD.
160+ people viewing
Last viewed: 1 hour ago
Standard Response
■Summary A solid state relay (SSR) is a semiconductor control component that, like an electromagnetic relay (EMR), has an insulated input and outpu...
Shinmei Electric Co.,LTD.
330+ people viewing
Last viewed: 28 minutes ago
■Features ・Subminiature 1-pole relay ・High sensitivity type 200mW and standard type 450mW ・Various product lineup including X terminal arrangeme...
10 models listed
EM Device Co., Ltd.
110+ people viewing
Last viewed: 4 hours ago
This is a next-generation miniature signal relay with approximately half the mounting area of the conventional EC2 series. Although it is small, ...
Bright Toward Industrial Co., Ltd
80+ people viewing
Last viewed: 5 hours ago
■Semiconductor miniature solid state relay Our opto-MOSFET relays are solid state relays focused on high load voltage capability, and the relay inp...
Sanyu Industries Co., Ltd.
90+ people viewing
Last viewed: 7 hours ago
This series was commercialized to meet the demands for high-density packaging from the semiconductor automatic inspection equipment and communicati...
EM Device Co., Ltd.
110+ people viewing
Last viewed: 4 hours ago
This is a next-generation surface-mount miniature signal relay with a mounting area about half that of the conventional EE2 series. Although it is ...
Sanyu Industries Co., Ltd.
80+ people viewing
Last viewed: 7 hours ago
This series was commercialized to improve the frequency characteristics DC~4.0GHz and transmission characteristics 1.6Gbps of our CJ series. The fr...
Bright Toward Industrial Co., Ltd
70+ people viewing
Last viewed: 7 hours ago
Miniature through-hole reed relays meticulously designed to meet a variety of application needs in diverse industries. With over 30 years of manufa...
Shinmei Electric Co.,LTD.
460+ people viewing
Last viewed: 33 minutes ago
■Features ・Small relay for 2-pole signals ・Highly sensitive polar characteristics. Operating power 100mW (rated power 200mW) ・We also have produ...
10 models listed
Bright Toward Industrial Co., Ltd
110+ people viewing
Last viewed: 6 hours ago
■Semiconductor miniature solid state relay Our Opto-MOSFET relays are solid state relays focused on high load voltage capability with optically iso...
Sanyu Industries Co., Ltd.
50+ people viewing
Last viewed: 7 hours ago
This series was commercialized with the aim of further downsizing our MJ series. Compared to the MJ series, the mounting area has been reduced by a...
Shinmei Electric Co.,LTD.
930+ people viewing
Last viewed: 42 minutes ago
■Features ・Ultra-compact, high-sensitivity 1-pole relay ・High sensitivity type 150mW, standard type 200mW and general purpose type 280mW ・Seal s...
10 models listed
EM Device Co., Ltd.
80+ people viewing
Last viewed: 15 hours ago
This is a next-generation miniature signal relay with approximately half the mounting area compared to the conventional EA2 series. Although it is ...
Bright Toward Industrial Co., Ltd
90+ people viewing
Last viewed: 10 hours ago
■Semiconductor miniature solid state relay Our Opto-MOSFET relays are solid state relays focused on high load voltage capability with optically iso...
EM Device Co., Ltd.
90+ people viewing
Last viewed: 15 hours ago
This is a next-generation surface-mount miniature signal relay with a mounting area about half that of the conventional EB2 series. Although it is ...
EM Device Co., Ltd.
90+ people viewing
Last viewed: 50 minutes ago
This is a standard type of small signal relay that has a thin profile of 5mm in height. ■Features ・Small and lightweight ・1,000VAC pressure resi...
Bright Toward Industrial Co., Ltd
100+ people viewing
Last viewed: 10 hours ago
■Semiconductor miniature solid state relay Our Opto-MOSFET relays are solid state relays focused on high load voltage capability with optically iso...
IDEC Co., Ltd.
360+ people viewing
Last viewed: 7 hours ago
Very Fast Response
■Features ・High capacity of 1C contact/16A, 2C contact/8A. ・Small low profile relay with width 12.8mm x height 16.5mm (average dimensions/RC2V ty...
MIKASA SHOJI CO.,LTD.
120+ people viewing
Last viewed: 4 hours ago
Standard Response
4.7 Company Review
■Summary ・Compact body with ultra-compact, lightweight, and high-density mounting ・Low power consumption type pursuing economic efficiency ・Plas...
MIKASA SHOJI CO.,LTD.
130+ people viewing
Last viewed: 15 hours ago
Standard Response
4.7 Company Review
■Summary ・Achieving a product that is small and capable of high capacity control ・Flux-tight structure suitable for automatic soldering dip ・Sem...
EM Device Co., Ltd.
100+ people viewing
Last viewed: 7 hours ago
The AC relay AX1 series is suitable for on-board charger (OBC) applications in electric vehicles such as PHEVs and EVs that require high performanc...
