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2N1944 NPN Transistor

The 2N1944 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the 2N1944 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2N1944 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 2N1944 transistor as follows.

Circuit diagram symbol of the 2N1944 transistor

2N1944 Transistor Specification

Transistor Code 2N1944
Transistor Type BJT
Transistor Polarity NPN
Transistor Material Silicon(SI)
Package TO5
Collector Power Dissipation (Maximum) PC 0.6W
Collector-Base Voltage (Maximum) VCB 20V
Collector Current (Maximum) IC 0.5A
Operating Junction Temperature (Maximum) TJ 175°C
Forward Current Transfer Ratio (hFE Value) 150
Transition Frequency FT 60MHz
Collector Capacitance CC 40pF

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