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40309 NPN Transistor

The 40309 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the 40309 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 40309 transistor symbol shows an arrow from the base into the emitter. This means that the current flows from collector terminal to emitter terminal.

Circuit diagram symbol of the 40309 transistor as follows.

Circuit diagram symbol of the 40309 transistor

40309 Transistor Specification

Transistor Code 40309
Transistor Type BJT
Transistor Polarity NPN
Transistor Material Silicon(SI)
Package TO5
Collector Power Dissipation (Maximum) PC 1W
Collector-Emitter Voltage (Maximum) VCE 18V
Collector Current (Maximum) IC 0.7A
Operating Junction Temperature (Maximum) TJ 200°C
Emitter-Base Voltage (Maximum) VEB 2V
Forward Current Transfer Ratio (hFE Value) 70
Transition Frequency FT 50MHz

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