10 PCS 5V Relay HRB1SDC5V 5VDC 6Pins Key benefits Pack of 10 identical relays gives consistent performance across multiple circuits and projects. 5V DC coil is directly compatible with common 5V control systems, making integration simple for prototyping and production. Compact 6pin throughhole design enables secure PCB mounting and straightforward wiring. Electromechanical isolation lets you switch highervoltage/load circuits from lowvoltage control signals, protecting sensitive electronics. What this relay does and why you need it The HRB1SDC5V is an electromechanical switching component driven by a 5V DC coil. When the coil is energized by a 5V control signal, the relay changes the state of its output contacts to control a separate electrical circuit. This isolates control electronics from the switched load and enables safe, reliable on/off control of devices that your controller cannot drive directly. Key attributes Model: HRB1SDC5V Coil voltage: 5V DC Pin count: 6 pins (throughhole) Quantity: 10 pieces per pack Function: Electromechanical relay for switching applications Mounting: PCB throughhole / solderable pins for secure connections Design focus: Compact footprint for use in control boards and modules Compatibility and usage notes Designed for use with 5V control signals (for example, 5V microcontroller outputs or driver circuits). Confirm coil current and contact ratings in your system documentation before direct connection. For reliable operation and to protect driving electronics, use a proper driver transistor or relay driver IC and include a flyback diode or suppression network across the coil. The 6pin layout simplifies PCB integration and replacement in relay sockets or custom boards. Use cases Prototyping and hobbyist projects: Use the relays in small control panels, Arduinobased automation, and hobby robotics where 5V control logic is used. Home automation and lighting control: Switch low to moderatepower lighting or appliance circuits from a 5V control module (observe the load ratings and wiring safety requirements). Industrial and control circuits: Integrate into custom PCB designs for machine control, signal routing, or to isolate sensors and actuators from the control logic. Practical tips Verify the exact contact current and voltage ratings from the supplier datasheet before connecting mains or current loads. Use driver circuitry and coil suppression to extend relay life and protect the control board. Ensure secure solder joints and appropriate PCB trace thickness for switched currents. This pack of 10 HRB1SDC5V relays provides a convenient, consistent set of 5Vdriven electromechanical switches ideal for PCBmounted control applications and smallscale production runs.