This part is a kind of semiconductor called B1568.

Function of this product has 2SB1568.

Manufacturers : Rohm

Image and pinout :

Some of the text within the PDF file :

Transistors Power Transistor (−80V, −4A) 2SB1568 2SB1568 z Features zExternal dimensions (Unit : mm) 1) Available in TO-220 FN package 2) Darling connection provides high 10.0 φ3.2 4.5 2.8 dc current gain (hFE) 3) Damper diode is incorporated m4) Built in resistors between base and emitter o5) Two millimeters lower than TO-220 FP .cwhich allows higher density mounting 6) Complementary pair with 2SD2399 15.0 12.0 8.0 ROHM : TO-220FN 14.0 5.0 1.2 1.3 0.8 2.54 2.54 (1) (2) (3) 0.75 (1) Base (Gate) 2.6 (2) Collector (Drain) (3) Emitter (Sourse) UzApplications t4Power amplifler ezAbsolute maximum rating (Ta=25°C) eParameter hCollector-base voltage Collector-emitter voltage SEmitter-base voltage taCollector current Collector dissipation aJunction temperature Storage tempe [ ... ]

B1568 PDF Datasheet Download