Module Features: RC absorption circuit is also called RC buffer circuit, which is a circuit structure of resistors and capacitors in series and connected in parallel with switching devices, used to improve the voltage and current waveforms borne by electronic and electric devices when they are turned on and off. RC absorption circuit module can prevent the inductive load on and off instantaneous generation of inductive electromotive force on the relay, thyristor and other switching devices caused by damage, to prevent electromagnetic interference and increase the anti-jamming ability of the microcontroller. Product parameters: 1, suitable for AC or DC 5~400V inductive load (less than 1000W load) to protect relay contacts or thyristor. 2, RC absorption circuit, absorb inductive loads of the inductive electric potential 3& 12289;With piezoresistor to prevent voltage fluctuation of excessive current, resulting in relay contacts sticking. 4& 12289;Provide the anti-interference ability of the circuit. 5& 12289;Using crimp terminals to make wiring more convenient. 6& 12289;Resistor 220R7& 12289;Capacitor 100nF 0.1uF Product list: 1X development board