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BUL45D2 NPN Transistor

The BUL45D2 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BUL45D2 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BUL45D2 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 BUL45D2 transistor as follows.

Circuit diagram symbol of the BUL45D2 transistor

BUL45D2 Transistor Specification

Transistor Code BUL45D2
Transistor Type BJT
Transistor Polarity NPN
Transistor Material Silicon(SI)
Package TO220
Collector Power Dissipation (Maximum) PC 75W
Collector-Emitter Voltage (Maximum) VCE 400V
Collector Current (Maximum) IC 5A
Forward Current Transfer Ratio (hFE Value) 22

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