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BDX53BFI BDX54BFI COMPLEMENTARY SILICON POWER DARLINGTON TRANSISTORS COMPLEMENTARY PNP - NPN DEVICES APPLICATIONS GENERAL PURPOSE SWITCHING AND AMPLIFIER LINEAR AND SWITCHING INDUSTRIAL EQUIPMENT DESCRIPTION 3 The BDX53BFI is silicon epitaxial-base NPN 2 1 power transistor in monolithic Darlington configuration and are mounted in ISOWATT220 ISOWATT220 plastic package. It is intented for use in hammer drivers, audio amplifiers and other medium power linear and switching applications. The complementary PNP type is the BDX54BFI. INTERNAL SCHEMATIC DIAGRAM R Typ. = 10 K? R Typ. = 150 ? 1 2 ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit NPN BDX53BFI PNP BDX54BFI V Collector-Base Voltage (I = 0) 80 V CBO E VCEO Collector-Emitter Voltage (IB = 0) 80 V V Em... See More ⇒