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2N4904 PNP Transistor

The 2N4904 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the 2N4904 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2N4904 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 2N4904 transistor as follows.

Circuit diagram symbol of the 2N4904 transistor

2N4904 Transistor Specification

Transistor Code 2N4904
Transistor Type BJT
Transistor Polarity PNP
Transistor Material Silicon(SI)
Package TO3
Collector Power Dissipation (Maximum) PC 87W
Collector-Base Voltage (Maximum) VCB 40V
Collector-Emitter Voltage (Maximum) VCE 40V
Collector Current (Maximum) IC 5A
Operating Junction Temperature (Maximum) TJ 200°C
Emitter-Base Voltage (Maximum) VEB 5V
Forward Current Transfer Ratio (hFE Value) 25
Transition Frequency FT 4MHz

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