https://herosmartele.com/wp-content/uploads/2025/04/4100-pcb-relay.mp4 Relay is an electrically operated switch. Mainly relays used an electromagnet to mechanically operate a switch, but other operating principles are also used, such as solid-state relays. Relays are used where it is necessary to control a circuit by a separate low-power signal, or where several circuits must be controlled by one signal. The first relays were used in long distance telegraph circuits as amplifiers: they repeated the signal coming in from one circuit and re-transmitted it on another circuit. Relays were used extensively in telephone exchanges and early computers to perform logical operations. Contact Specification Contact Form 1A,1C Contact Resistance ≤100mΩ(1A 6VDC) Contact Rating 1A 250VAC/30VDC 2A 125VAC Contact Material Silver Alloy (AgCdO/AgSnO2) Technical Specification Insulation Resistance ≥100MΩ(500VDC) Dielectric Strength Between contacts and coil ≥500VAC 1min Between open contacts ≥500VAC 1 min Terminal Type PCB Mounting Coil Specification Rated Coil Power 360mW Coil Data Nominal Voltage Operate Voltage Release Voltage Coil Resistance VDC VDC VDC Ω±10% 3 2.3 0.3 25 5 3.8 0.5 70 6 4.5 0.6 100 9 6.8 0.9 220 12 9.0 1.2 400 24 18.0 2.4 1600
