This part is a kind of semiconductor called BD140.

Function of this product has PNP power transistors.

Manufacturers : NXP

Image and pinout :

Some of the text within the PDF file :

DISCRETE SEMICONDUCTORS DATA SHEET ok, halfpage M3D100 BD136; BD138; BD140 PNP power transistors Product specification Supersedes data of 1997 Mar 26 1999 Apr 12 Philips Semiconductors Product specification PNP power transistors FEATURES • High current (max. 1.5 A) • Low voltage (max. 80 V). APPLICATIONS • General purpose power applications, e.g. driver stages in hi-fi amplifiers and television circuits. DESCRIPTION PNP power transistor in a TO-126; SOT32 plastic package. NPN complements: BD135, BD137 and BD139. 3 PINNING PIN 1 2 BD136; BD138; BD140 DESCRIPTION emitter collector, connected to metal part of mounting surface base handbook, halfpage 2 3 1 1 2 3 Top view MAM272 Fig.1 Simplified outline (TO-126; SOT32) and symbol. LIMITING VALUES In accordance with the [ ... ]

BD140 PDF Datasheet Download