BUY MOC3042M https://www.utsource.net/itm/p/11246371.html

Description: The MOC3042M is an optically coupled isolator containing a GaAs infrared emitting diode and a photo-voltaic detector. Features: High isolation voltage: 5000Vrms High current transfer ratio (CTR): Min. 50% at IF = 10mA Low input current: Max. 1mA Low output saturation voltage: Max. 0.5V High noise immunity Compact dual-in-line package Applications: AC motor control DC motor control Lighting control Industrial control Power supplies Home appliances (For reference only)