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2N3421SM NPN Transistor

The 2N3421SM is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the 2N3421SM transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2N3421SM 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 2N3421SM transistor as follows.

Circuit diagram symbol of the 2N3421SM transistor

2N3421SM Transistor Specification

Transistor Code 2N3421SM
Transistor Type BJT
Transistor Polarity NPN
Transistor Material Silicon(SI)
Package TO252
Collector Power Dissipation (Maximum) PC 0.8W
Collector-Base Voltage (Maximum) VCB 125V
Collector-Emitter Voltage (Maximum) VCE 80V
Collector Current (Maximum) IC 3A
Operating Junction Temperature (Maximum) TJ 200°C
Emitter-Base Voltage (Maximum) VEB 8V
Forward Current Transfer Ratio (hFE Value) 40
Transition Frequency FT 40MHz
Collector Capacitance CC 20pF

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