This part is a kind of semiconductor called 2SD1032.

Function of this product has Silicon NPN Power Transistor.

Manufacturers : Inchange Semiconductor

Image and pinout :

Some of the text within the PDF file :

INCHANGE Semiconductor isc Product Specification isc Silicon NPN Power Transistor 2SD1032 DESCRIPTION ·Collector-Emitter Breakdown Voltage: V(BR)CEO= 60V(Min) ·Large Collector Power Dissipation ·Complement to Type 2SB812 APPLICATIONS ·Designed for AF power amplifier applications. ABSOLUTE MAXIMUM RATINGS(Ta=25℃) SYMBOL PARAMETER VALUE UNIT VCBO Collector-Base Voltage 60 V VCEO Collector-Emitter Voltage 60 V VEBO Emitter-Base Voltage 5 V IC Collector Current-Continuous 4 A ICM Collector Current-Peak Collector Power Dissipation @ TC=25℃ Junction Temperature 8 A PC 60 W TJ 150 ℃ Tstg Storage Temperature Range -55~150 ℃ isc Website：www.iscsemi.cn INCHANGE Semiconductor isc Product Specification is [ ... ]

2SD1032 PDF Datasheet Download