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AD139 PNP Transistor

The AD139 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the AD139 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The AD139 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 AD139 transistor as follows.

Circuit diagram symbol of the AD139 transistor

AD139 Transistor Specification

Transistor Code AD139
Transistor Type BJT
Transistor Polarity PNP
Transistor Material Germanium(GE)
Package TO3
Collector Power Dissipation (Maximum) PC 13W
Collector-Base Voltage (Maximum) VCB 32V
Collector-Emitter Voltage (Maximum) VCE 20V
Collector Current (Maximum) IC 3.5A
Operating Junction Temperature (Maximum) TJ 90°C
Emitter-Base Voltage (Maximum) VEB 10V
Forward Current Transfer Ratio (hFE Value) 30
Transition Frequency FT 0.4MHz

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