This part is a kind of semiconductor called U2008B.

Function of this product has Low Cost Current Feedback Phase Control Circuit.

Manufacturers : TEMIC Semiconductors

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Some of the text within the PDF file :

U2008B Low Cost Current Feedback Phase Control Circuit Description The U2008B is designed as a phase control circuit in bipolar technology. It enables load-current detection as well as mains-compensated phase control. Motor control with load-current feedback and overload protection are preferred applications. Features D Full wave current sensing D Mains supply variation compensated D Variable soft-start or load-current sensing D Voltage and current synchronization D Automatic retriggering switchable D Triggering pulse typ. 125 mA D Internal supply-voltage monitoring D Current requirement 3 mA v Applications D Low cost motor control D Domestic appliance Package: DIP8, SO8 Block Diagram 22 kW/2W 230 V ~ 330 kW Load 7 Limiting detector Voltage detector 6 Mains voltage compensation R2 R1 B [ ... ]

U2008B PDF Datasheet Download