MOC3063 IC is a 6 pin I/O Optocoupler/Optoisolator with an integrated gallium arsenide Infrared emitting diode optically coupled to a TRIAC output with a Zero-crossing circuit. The IC can provide optical isolation to devices operating at 115/240 VAC lines.
If you’ve ever taken apart any phone charger or a switching power supply, you’ll find some tiny black IC packages with an unusual number of pins, mostly four or six, both in SMD and through-hole variants.
The HCPL-0600 is a Single channel high-speed Optocoupler with open collector Schottky clamped transistor output. HCPL0600 consists of an AIGaAS LED optically coupled to a high-speed photodetector transistor.