This part is a kind of semiconductor called 2SA1668.

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 2SA1668 DESCRIPTION ·Collector-Emitter Breakdown Voltage: V(BR)CEO= -200V(Min) ·DC Current Gain: hFE= 60(Min)@ (VCE= -10V, IC= -0.7A) ·Complement to Type 2SC4382 APPLICATIONS ·Designed for TV vertical output ,audio output driver 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 IC Emitter-Base Voltage -6 V Collector Current-Continuous -2 A IB Base Current-Continuous Collector Power Dissipation @TC=25℃ Junction Temperature -1 A PC 25 W ℃ ℃ TJ Tstg 150 Storage Temperature -55~150 isc Website：www.iscsemi.cn INCHANGE Semicon [ ... ]

2SA1668 PDF Datasheet Download