Solid State Relays - SSR

Solid state relays are in stock at Mouser with same day shipping. Mouser is an authorized distributor for many solid state relay manufacturers including Infineon, IXYS, Omron, Panasonic, Sensata, Teledyne, Toshiba, Vishay, & more.

Solid state relays (SSRs) are electronic switching devices that use semiconductor components to control electrical loads without moving parts, delivering fast, silent, and highly reliable operation in demanding industrial environments. Unlike electromechanical relays, SSRs eliminate contact wear and arcing, enabling longer service life and improved performance in high-cycle automation systems. Their ability to provide precise switching and resistance to vibration makes them ideal for modern control architectures requiring consistent and maintenance-free operation.

Applications: Solid state relays are widely used in industrial automation systems such as PLC-controlled machinery, temperature control systems, conveyor lines, robotics, and process equipment where fast, reliable, and noise-free switching is critical.

Common Types: Common solid state relay types include AC output SSRs, DC output SSRs, DIN rail-mounted SSRs, panel-mount SSRs, and analog-controlled SSRs designed for proportional load control.

Selection requirements: Choosing a solid state relay requires evaluating load voltage and current ratings, switching type (AC or DC), thermal management needs, control input compatibility, isolation requirements, and environmental conditions to ensure safe and reliable operation in industrial applications.

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Please view our large selection of solid state relay products below.