This part is a kind of semiconductor called 2SA1494.

Function of this product has POWER TRANSISTOR.

Manufacturers : Inchange Semiconductor

Image and pinout :

Some of the text within the PDF file :

www.net INCHANGE Semiconductor isc Product Specification isc Silicon PNP Power Transistor 2SA1494 DESCRIPTION ·Collector-Emitter Breakdown VoltageV(BR)CEO= -200V(Min) ·Good Linearity of hFE ·Complement to Type 2SC3858 APPLICATIONS ·For audio and general purpose applications ABSOLUTE MAXIMUM RATINGS(Ta=25℃) SYMBOL PARAMETER VALUE UNIT VCBO Collector-Base Voltage -200 V VCEO Collector-Emitter Voltage -200 V VEBO Emitter-Base Voltage -6 V IC Collector Current-Continuous -17 A IB B Base Current-Continuous Collector Power Dissipation @ TC=25℃ -5 A PC 200 W TJ Junction Temperature 150 ℃ Tstg Storage Temperature Range -55~150 ℃ isc Website：www.iscsemi.cn INCHANGE Semiconductor isc Product Specification isc Silicon PNP Power Trans [ ... ]

2SA1494 PDF Datasheet Download