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D42R2 NPN Transistor

The D42R2 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the D42R2 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The D42R2 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 D42R2 transistor as follows.

Circuit diagram symbol of the D42R2 transistor

D42R2 Transistor Specification

Transistor Code D42R2
Transistor Type BJT
Transistor Polarity NPN
Transistor Material Silicon(SI)
Package TO202
Collector Power Dissipation (Maximum) PC 6.25W
Collector-Base Voltage (Maximum) VCB 300V
Collector-Emitter Voltage (Maximum) VCE 280V
Collector Current (Maximum) IC 1A
Operating Junction Temperature (Maximum) TJ 150°C
Emitter-Base Voltage (Maximum) VEB 5V
Forward Current Transfer Ratio (hFE Value) 80
Transition Frequency FT 55MHz

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