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BD321 NPN Transistor

The BD321 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BD321 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BD321 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 BD321 transistor as follows.

Circuit diagram symbol of the BD321 transistor

BD321 Transistor Specification

Transistor Code BD321
Transistor Type BJT
Transistor Polarity NPN
Transistor Material Silicon(SI)
Package TO39
Collector Power Dissipation (Maximum) PC 5W
Collector-Base Voltage (Maximum) VCB 80V
Collector-Emitter Voltage (Maximum) VCE 60V
Collector Current (Maximum) IC 2A
Operating Junction Temperature (Maximum) TJ 175°C
Emitter-Base Voltage (Maximum) VEB 10V
Forward Current Transfer Ratio (hFE Value) 500
Transition Frequency FT 40MHz

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