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PCB Relays
PCB Relays: Precision Switching for Modern Electronics
PCB relays, also known as printed circuit board relays or electronic relays, are electromechanical switching devices designed for direct mounting onto printed circuit boards. These compact components typically feature coil voltages ranging from 3V to 48V DC, with contact ratings from 1A to 16...
PCB Relays: Precision Switching for Modern Electronics
PCB relays, also known as printed circuit board relays or electronic relays, are electromechanical switching devices designed for direct mounting onto printed circuit boards. These compact components typically feature coil voltages ranging from 3V to 48V DC, with contact ratings from 1A to 16A depending on the model. Common configurations include single-pole (1P) and double-pole (2P) variants, with form A (normally open), form B (normally closed), or form C (changeover) contact arrangements. The coil power consumption is generally low, often between 200mW and 600mW, making them ideal for sensitive electronic circuits. PCB relays are available in through-hole (THT) or surface-mount (SMD) packages, with standard pin pitches of 2.54mm or 5mm. Key technical parameters include dielectric strength (typically 4kV between coil and contacts), mechanical life exceeding 10 million operations, and operating temperatures from -40°C to +85°C. These relays are essential for signal isolation, load switching, and interface applications in automated systems.
PCB relays are widely deployed in industrial automation, building management systems, HVAC controls, and consumer electronics. They are commonly found in programmable logic controllers (PLCs), distributed control systems (DCS), and remote terminal units (RTUs) for switching low-power signals and loads. In the automotive sector, they are used in engine control units (ECUs) and body electronics. Other applications include medical devices, test equipment, telecommunications infrastructure, and smart home systems. Their compact footprint allows dense packing on PCBs, enabling high integration in control cabinets, power supplies, and interface modules.
Our PCB relay category includes subcategories such as miniature PCB relays, power PCB relays, latching PCB relays, and automotive-grade PCB relays. Key article codes include OM08-1A-12D (single-pole, normally open, 12V coil), OM08-2C-24D (double-pole, changeover, 24V coil), and OM08-1B-5D (single-pole, normally closed, 5V coil). The code structure typically follows: OM08-[pole configuration]-[contact form]-[coil voltage][coil type]. For example, 'OM08-1A-12D' indicates a 1-pole normally open relay with a 12V DC coil. Other popular codes include OM08-2A-48D and OM08-1C-24D, covering various switching needs.
At Electric Automation Network, we offer express worldwide shipping and personalized technical support from our team of specialized engineers. Each PCB relay listing includes detailed datasheets, wiring diagrams, and dimensional drawings. Our real-time pricing system ensures competitive rates, while our multilingual portal (electricautomationnetwork.com) provides seamless access to technical documentation and inventory availability. Whether you need a standard miniature relay or a high-power latching variant, our engineers can assist with selection, application guidance, and cross-referencing.
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