Reed Relays for Control Loop Applications What it is A compact relay that uses magnetically actuated reed contacts inside a sealed glass envelope to switch signals in control loops. Key benefits Fast switching with minimal contact bounce for responsive control. electrical isolation between coil drive and switched circuit, reducing interference and increasing safety. Long operating life with low contact wear, suitable for repetitive control loop operation. Small form factor enables dense PCB layouts and compact enclosures. Reliable performance across standard control loop signal levels and environments. Attributes and performance Function: Switches signal paths in control loops with galvanic isolation. Compatibility: Suitable for integration with common control loop architectures and standard signaling levels; compatible with PCB mounting and compact automation modules. Size: Compact, lowprofile package suitable for tight spaces. Material: Reed contacts housed in a sealed glass envelope for durability and isolation. Performance: Fast actuation, repeatable switching, and robust operation in routine control tasks. Applications (23 scenarios) In a microcontrollerbased control loop, use a reed relay to isolate and switch a sensor signal path, protecting the controller from noise or voltage on the measurement line. In an instrumentation or data acquisition system, route measurement signals while maintaining galvanic isolation between sensing and processing circuits. In industrial automation, implement signal routing or interlocking logic that requires fast, reliable switching with coiltocontact isolation.