{"title":"5V 1 Channel H/L Level Trigger Optocoupler Relay Module For Arduino","handle":"5v-1-channel-h-l-level-trigger-optocoupler-relay-module-for-arduino","url":"/products/5v-1-channel-h-l-level-trigger-optocoupler-relay-module-for-arduino","description":"The 5V 1-Channel Optocoupler Relay Module provides safe, isolated switching of high-voltage loads from a microcontroller. An onboard SMD optocoupler isolates the control circuit from the relay, protecting your Arduino, Raspberry Pi, or other development board from voltage spikes.\n\nA jumper setting lets you select either high-level or low-level trigger, giving you flexibility to match your project's logic. A fault-tolerant design ensures the relay remains off if the control line is disconnected.\n\nKey Features\n\n\nOptocoupler Isolation – SMD optocoupler separates control and load circuits for safety\n\nSelectable Trigger Level – Jumper to choose high or low level trigger\n\nFault-Tolerant Design – Relay stays off if control line is disconnected\n\nLED Indicators – Green power LED and red relay status LED\n\nMaximum Load – AC 250V/10A or DC 30V/10A\n\nTrigger Current – 5mA\n\nMounting – Four 3.1mm bolt holes for secure installation\n\nCompact Size – 50 × 26 × 18.5mm\n\n\nPin Connections\n\n\nDC+ – Positive power supply (VCC, 5V)\n\nDC− – Negative power supply (GND)\n\nIN – Control signal input (high or low level)\n\nNO – Normally open relay output\n\nCOM – Common relay output\n\nNC – Normally closed relay output\n\n\nIdeal For\n\nHome automation and IoT switching\nArduino and Raspberry Pi projects requiring mains-voltage control\nControlling lights, fans, pumps, and solenoids\nIndustrial control prototyping\n\n\nPackage Contents\n\n1× 5V 1-Channel H/L Level Trigger Optocoupler Relay Module\n\n\n\nWarning: This module switches mains voltage. Ensure all high-voltage wiring is performed by a qualified person and that connections are properly insulated.\n\n\n\nNeed more channels? See also the 2-Channel, 4-Channel, 8-Channel, and 16-Channel relay modules, or the Gravity Easy Relay Module for a simpler interface.\n","vendor":"Little Bird","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":5893,"title":"Default Title","sku":"LB-LR0046","price":7.58,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":31,"option1":"Default Title"}]}