Relays provide remote, controllable switching for electrical circuits, enabling low power control of higher current loads with electrical isolation. Key benefits Allows a small control signal to switch larger loads safely and reliably Electrically isolates control circuitry from power circuits to protect sensitive electronics Improves safety and system reliability by separating control and power domains Flexible for a range of applications Key attributes Configurations: available in common contact arrangements such as SPST, SPDT, and DPDT Coil voltages: offered in multiple coil voltage options Mounting: throughhole and surfacemount formats for PCB or panel mounting Materials: durable plastic housing with copper alloy contacts; encapsulated construction for protection Performance: designed for dependable switching performance with good electrical isolation; suitable for a variety of loads Optional features: certain models may include coil suppression diodes or protective options Size and form factors Compact footprints suitable for spaceconstrained designs A range of sizes to fit standard mounting layouts and relaying needs Compatibility Designed to work with standard control signals and wiring practices Compatible with common relay sockets, terminal blocks, and PCB mounting patterns Applications and use scenarios Automotive control: switch a current accessory (such as a cooling fan or power relay) from a microcontroller or sensor signal Industrial control: interface PLC outputs or sensors to motors, heaters, or conveyors in control panels Home automation and DIY: control lighting, fans, pumps, or HVAC components from a smart home hub or microcontroller Notes Choose the coil voltage, contact configuration, and mounting style to match your specific circuit requirements Ensure the relay rating matches the load current and voltage of your application for safe and reliable operation