This part is a kind of semiconductor called BDW47.

Function of this product has DARLINGTON COMPLEMENTARY SILICON POWER TRANSISTORS.

Manufacturers : Motorola

Image and pinout :

Some of the text within the PDF file :

MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by BDW42/D Darlington Complementary Silicon Power Transistors . . . designed for general purpose and low speed switching applications. • High DC Current Gain – hFE = 2500 (typ.) @ IC = 5.0 Adc. • Collector Emitter Sustaining Voltage @ 30 mAdc: VCEO(sus) = 80 Vdc (min.) BDW46 VCEO(sus) = 100 Vdc (min.) BDW42/BDW47 • Low Collector Emitter Saturation Voltage VCE(sat) = 2.0 Vdc (max.) @ IC = 5.0 Adc VCE(sat) = 3.0 Vdc (max.) @ IC = 10.0 Adc • Monolithic Construction with Built–In Base Emitter Shunt resistors • TO–220AB Compact Package MAXIMUM RATINGS BDW42 * BDW46 BDW47 * *Motorola Preferred Device NPN PNP ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ [ ... ]

BDW47 PDF Datasheet Download