This part is a kind of semiconductor called BDT87.

Function of this product has (BDT81 - BDT87) SILICON POWER TRANSISTOR.

Manufacturers : Comset Semiconductors

Image and pinout :

Some of the text within the PDF file :

NPN BDT81 – BDT83 – BDT85 – BDT87 SILICON POWER TRANSISTORS The BDT81 – BDT83 – BDT85 – BDT87 are epitaxial base transistors in a TO-220 plastic envelope. They are intended for use in audio output stages and general amplifier and switching appications. PNP complements are BDT82 – BDT84 – BDT86 – BDT88. Compliance to RoHS. ABSOLUTE MAXIMUM RATINGS Symbol Ratings www.DataSheet.net/ Value BDT81 BDT83 BDT85 BDT87 BDT81 BDT83 BDT85 BDT87 60 80 100 120 60 80 100 120 7 15 20 4 125 150 -65 to +150 Unit VCEO Collector-Emitter Voltage IB = 0 V VCBO VEBO IC ICM IB Pt TJ TStg Collector-Base Voltage Emitter-Base Voltage Collector Current Collector Peak Current Base Current Total Power Dissipation Junction Temperature Storage Temperature IE = 0 IC = 0 V V A A A W [ ... ]

BDT87 PDF Datasheet Download