NE555 delay module monostable switch delay switch (12V) automotive electrical delay for Androids for R3 r3

 brief introduction]
Second, the main chip: NE555
. Working voltage: DC 12V
. Features:
1. Turn on the power supply relay and delay the pull-in. Specifically: After the relay is supplied with 12v power, the relay will not immediately absorb. The state of the relay output is: normally open and public disconnection, normally closed and public conduction; wait until the delay is 1-10s (adjustable) Suction, at this time, the state of the relay output terminal is: normally open and public conduction, normally closed and public disconnection; as long as the module is constantly powered, this state will remain.
2. Adjustable delay time (0 ~ 10 seconds)
4. Adding a potentiometer can increase the delay time
5. Increase the capacitance C1 can increase the delay time
6. With input power indicator
7. With relay pull-in indicator
8. Can control AC 220V / 10A equipment. (It is a large control device 2000W)
9. With relay continuous protection.
10. Delay time formula: T = 1.1RC. For example: capacitance 100uf resistance 100K T = 1.1 * 100000 * 0.0001 = 11 seconds
[Applications]
1. Delay connection of vehicle-mounted equipment to prevent excessive current from burning down the vehicle-mounted equipment when the car catches fire.