This part is a kind of semiconductor called 2SC4544.

Function of this product has Epitaxial Planar NPN Transistor.

Manufacturers : GME

Image and pinout :

Some of the text within the PDF file :

Epitaxial Planar NPN Transistor FEATURES z High Voltage. z Small Collector Output Capacitance. z Collector Metal is Fully Covered With Mold Resin. Pb Lead-free Production specification 2SC4544 TO-220AB MAXIMUM RATING operating temperature range applies unless otherwise specified Symbol Parameter Value Unit VCBO Collector-Base Voltage 300 V VCEO VEBO IC IB PC Tj,Tstg Collector-Emitter Voltage Emitter-Base Voltage Collector Current Base Crrent Collector Dissipation Junction and Storage Temperature Ta=25℃ Tc=25℃ 300 V 7V 100 mA 50 mA 2 W 8 -55 to +150 ℃ X034 Rev.A www.gmicroelec.com 1 Production specification Epitaxial Planar NPN Transistor 2SC4544 ELECTRICAL CHARACTERISTICS Ratings at 25℃ ambient temperature unless otherwise specified. Parameter Symbol Test [ ... ]

2SC4544 PDF Datasheet Download