BU209 NPN Transistor

The BU209 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BU209 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BU209 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 BU209 transistor as follows.

BU209 Transistor Specification

Transistor Code		BU209
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO3
Collector Power Dissipation (Maximum)	PC	12.5W
Collector-Base Voltage (Maximum)	VCB	1700V
Collector-Emitter Voltage (Maximum)	VCE	800V
Collector Current (Maximum)	IC	6A
Operating Junction Temperature (Maximum)	TJ	115°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		2.25
Transition Frequency	FT	3MHz

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