The MOC303XM and MOC304XM devices consist of a AlGaAsinfrared emitting diode optically coupled to a monolithic silicondetector performing the function of a zero voltage crossing bilateraltriac driver.They are designed for use with a triac in the interface of logicsystems to equipment powered from 115 VAC lines, such asteletypewriters, CRTs, solid-state relays, industrial controls,printers, motors, solenoids and consumer appliances, etc
