Reed relays are sealed, magnetically operated switches designed for switching low level signals with galvanic isolation between the control coil and the load circuit. The glass envelope and reed contacts provide reliable, compact switching suitable for instrument grade applications. Key benefits - High isolation between coil and contacts, protecting control circuitry from load disturbances - Very small, compact footprint ideal for space constrained designs - Low coil drive power, enabling use with standard controllers and low current drivers - Fast actuation and release for rapid signal routing - Long contact life when used within intended load ranges - Hermetically sealed glass envelope for stable performance and moisture resistance - Simple integration with common configurations and footprints What to expect in terms of design and options - Contact configurations: normally open NO, normally closed NC, and changeover SPDT variants are available depending on the model - Coil drive: designed for low power operation suitable for microcontrollers and logic circuits - Package and materials: compact reed switch inside a sealed envelope, with standard reed contact materials typical of the family - Compatibility: suitable for signal level switching in electronic systems; specifics such as coil voltage, contact rating, and footprint vary by model, so refer to the model datasheet for exact values Typical applications - Signal routing and multiplexing in test equipment and instrumentation, where fast, isolated switching of multiple signals is required - Data acquisition systems and measurement benches that need to isolate measurement circuits from control electronics while switching small signals - Telecommunication or automotive sensor interfaces that require reliable, isolated switching of low-level signals with quick response times Usage scenarios - A lab test setup that swaps several sensor signals into an ADC while keeping the control electronics isolated from the signal path - A compact instrumentation box that routes multiple low-current signals to a single measurement channel with high isolation - A control system that switches small signals for monitoring or alert circuits without introducing control it noise into the measurement environment Notes - Coil voltages, contact ratings, and package options vary by model. Check the specific datasheet for the exact specifications of the reed relay you select.