This part is a kind of semiconductor called BD676A.

Function of this product has DARLINGTON POWER TRANSISTORS PNP SILICON.

Manufacturers : ON Semiconductor

Image and pinout :

Some of the text within the PDF file :

BD676, BD676A, BD678, BD678A, BD680, BD680A, BD682, BD682T Plastic Medium−Power Silicon PNP Darlingtons This series of plastic, medium−power silicon PNP Darlington transistors can be used as output devices in complementary general−purpose amplifier applications. Features http://onsemi.com • High DC Current Gain − • • • • hFE = 750 (Min) @ IC = 1.5 and 2.0 Adc Monolithic Construction BD676, 676A, 678, 678A, 680, 680A, 682 are complementary with BD675, 675A, 677, 677A, 679, 679A, 681 BD678, 678A, 680, 680A are equivalent to MJE 700, 701, 702, 703 Pb−Free Package are Available* 4.0 AMP DARLINGTON POWER TRANSISTORS PNP SILICON 45, 60, 80, 100 VOLT, 40 WATT TO−225AA CASE 77 STYLE 1 3 2 1 MAXIMUM RATINGS Rating Collector-Emitter Voltage BD676, BD676 [ ... ]

BD676A PDF Datasheet Download