... TLP570 MOC3022 PS9714 TLP620 MOC3023 PS9817-2 TLP620-2 MOC3041 Optocoupler generally consists of three parts: optical transmission, optical ... of noise and interference suppression of new semiconductor devices. Optocoupler appeared in 1966, developed in the 70s, which transmit ... diversified and most widely used one of optoelectronic devices. Optocoupler advantage of small size, long life, no contact, ...