5V 1 Channel Relay Module KY-019 1 Way with Optocoupler for Arduino

Origin:Mainland China Module Description:

Output drive capacity: 250VAC-10A, 125VAC-10A, 30VDC-10A, 28VDC-10A; easy to use, simple 3-wire structure for each group of outputs, reserved for 6 output terminals; inputs are directly connected to the microcontroller IO port or digital circuits, input low level relay suction, input low level relay release; operating voltage 5V, suction current of about Operating voltage 5V, suction current about 70mA each way, with relay status indicator; all SMD components, reasonable drive circuit design, using 8050 transistor drive relay action; with fixed screw holes for easy installation.

Simple test instructions: module input and output electrical insulation, for the corresponding correct voltage, just connect a low level on the input pin (such as a short circuit with VCC) will allow the relay to be absorbed, do not connect or connect a low level (such as a short circuit with GND) relay does not operate.