isc Silicon NPN Power Transistors BD543/A/B/CDESCRIPTION70 W at 25C Case TemperatureComplement to Type BD544/A/B/C8 A Continuous Collector CurrentMinimum Lot-to-Lot variations for robust device performance and reliable operationAPPLICATIONSDesigned for high power audio amplifier applications.ABSOLUTE MAXIMUM RATINGS(T =25)aSYMBOL PARAMETER VALUE UNITBD543 40

BD543, BD543A, BD543B, BD543CNPN SILICON POWER TRANSISTORS Designed for Complementary Use with the BD544 SeriesTO-220 PACKAGE(TOP VIEW) 70 W at 25C Case Temperature 8 A Continuous Collector CurrentB 1 10 A Peak Collector CurrentC 2 Customer-Specified Selections Available 3EPin 2 is in electrical contact with the mounting base.MDTRACAabsolute maximu

Inchange Semiconductor Product Specification Silicon NPN Power Transistors BD543/A/B/C DESCRIPTION With TO-220C package Complement to type BD544/A/B/C 8 A continuous collector current 10 A peak Collector current PINNING PIN DESCRIPTION1 Base Collector;connected to 2 mounting base 3 EmitterAbsolute maximum ratings (Ta=25) SYMBOL PARAMETER CONDITIONS VAL