This part is a kind of semiconductor called BD238.
Function of this product has (BD234 - BD238) Silicon PNP Power Transistors.
Manufacturers : Inchange Semiconductor
Image and pinout :

Some of the text within the PDF file :
Inchange Semiconductor Product Specification Silicon PNP Power Transistors DESCRIPTION ¡¤ With TO-126 package ¡¤ Complement to type BD233/235 /237 APPLICATIONS ¡¤ For medium power linear and switching applications PINNING PIN 1 2 3 DESCRIPTION Emitter Collector;connected to mounting base Base BD234 BD236 BD238 ¡¤ Absolute maximum ratings (Ta=25¡æ ) SYMBOL PARAMETER BD234 VCBO Collector-base voltage BD236 BD238 BD234 VCEO Collector-emitter voltage BD236 BD238 VEBO IC ICM PC Tj Tstg Emitter -base voltage Collector current (DC) Collector current-Peak Collector power dissipation Junction temperature Storage temperature TC=25¡æ Open collector Open base Open emitter CONDITIONS VALUE -45 -60 -100 -45 -60 -80 -5 -2 -6 25 150 -65~150 ¡æ ¡æ V A A W V V UNIT [ ... ]
BD238 PDF Datasheet Download
