This part is a kind of semiconductor called BD244.

Function of this product has PNP SILICON POWER TRANSISTORS.

Manufacturers : Power Innovations Limited

Image and pinout :

Some of the text within the PDF file :

BD244, BD244A, BD244B, BD244C PNP SILICON POWER TRANSISTORS Copyright © 1997, Power Innovations Limited, UK JUNE 1973 - REVISED MARCH 1997 q Designed for Complementary Use with the BD243 Series 65 W at 25°C Case Temperature 6 A Continuous Collector Current 10 A Peak Collector Current Customer-Specified Selections Available B C E q q q q TO-220 PACKAGE (TOP VIEW) 1 2 3 Pin 2 is in electrical contact with the mounting base. MDTRACA absolute maximum ratings at 25°C case temperature (unless otherwise noted) RATING BD244 Collector-emitter voltage (RBE = 100 Ω) BD244A BD244B BD244C BD244 Collector-emitter voltage (IC = -30 mA) BD244A BD244B BD244C Emitter-base voltage Continuous collector current Peak collector current (see Note 1) Continuous base current Continuous device dissipatio [ ... ]

BD244 PDF Datasheet Download