This part is a kind of semiconductor called BD934.

Function of this product has Silicon PNP Power Transistor.

Manufacturers : INCHANGE

Image and pinout :

Some of the text within the PDF file :

INCHANGE Semiconductor isc Silicon PNP Power Transistor isc Product Specification BD934/936/938/940/942 DESCRIPTION ·DC Current Gain- : hFE= 40(Min)@ IC= -150mA ·Complement to Type BD933/935/937/939/941 APPLICATIONS ·Designed for use in output stages of audio and television amplifier circuits where high peak powers can occur. ABSOLUTE MAXIMUM RATINGS(Ta=25℃) SYMBOL PARAMETER VALUE BD934 -45 BD936 -60 VCBO Collector-Base Voltage BD938 -100 BD940 -120 BD942 -140 BD934 -45 BD936 -60 VCEO Collector-Emitter Voltage BD938 -80 BD940 -100 BD942 -120 VEBO IC Emitter-Base Voltage Collector Current-Continuous -5 -3 ICM Collector Current-Peak -7 IB Base Current-Continuous PC Collector Power Dissipation @ TC=25℃ TJ Junction Temperature -0.5 30 150 Tstg Sto [ ... ]

BD934 PDF Datasheet Download