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BD544A PNP Transistor

The BD544A is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the BD544A transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BD544A transistor symbol shows an arrow from the emitter into the base. This means that the current flows from emitter to collector terminal.

Circuit diagram symbol of the BD544A transistor as follows.

Circuit diagram symbol of the BD544A transistor

BD544A Transistor Specification

Transistor Code BD544A
Transistor Type BJT
Transistor Polarity PNP
Transistor Material Silicon(SI)
Package TO220
Collector Power Dissipation (Maximum) PC 70W
Collector-Base Voltage (Maximum) VCB 60V
Collector-Emitter Voltage (Maximum) VCE 60V
Collector Current (Maximum) IC 8A
Operating Junction Temperature (Maximum) TJ 150°C
Emitter-Base Voltage (Maximum) VEB 5V
Forward Current Transfer Ratio (hFE Value) 40
Transition Frequency FT 3MHz

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