5v Relay Module Schematic. The following are the major components present on a relay module. Relays are most commonly used switching device in electronics.
Also maybe the relay as a single component can be triggered by 5 12v but it is likely that the led would burnout with 12v with the ky 019. It is equiped with high current relays that work under ac250v 10a or dc30v 10a. This pdf should have the correct schematic in it.
How the 5v relay works the srd 05vdc sl c relay has three high voltage terminals nc c and no which connect to the device you want to control.
Connect vcc to 5v of the mcu board to supply input signals. Let us discuss the working of the project. And check the relay is turning on and off in a 1 second intervals also the led of relay module will turn on and off. 5v relay transistor diode leds resistors male header pins 3 pin screw type terminal connector etc.
