This part is a kind of semiconductor called MOC3082.

Function of this product has (MOC3081 - MOC3083) 6-Pin DIP Zero-C Cross Optoisolators Triac Driver Output.

Manufacturers : Fairchild Semiconductor

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GlobalOptoisolator™ 6-Pin DIP Zero-Cross Optoisolators Triac Driver Output (800 Volts Peak) The MOC3081, MOC3082 and MOC3083 devices consist of gallium arsenide infrared emitting diodes optically coupled to monolithic silicon detectors performing the function of Zero Voltage Crossing bilateral triac drivers. They are designed for use with a triac in the interface of logic systems to equipment powered from 240 Vac lines, such as solid–state relays, industrial controls, motors, solenoids and consumer appliances, etc. • • • • Simplifies Logic Control of 240 Vac Power Zero Voltage Crossing dv/dt of 1500 V/µs Typical, 600 V/µs Guaranteed To order devices that are tested and marked per VDE 0884 requirements, the suffix ”V” must be included at end of part n [ ... ]

MOC3082 PDF Datasheet Download