BD849 NPN Transistor

The BD849 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BD849 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BD849 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 BD849 transistor as follows.

BD849 Transistor Specification

Transistor Code		BD849
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO202
Collector Power Dissipation (Maximum)	PC	2W
Collector-Base Voltage (Maximum)	VCB	140V
Collector-Emitter Voltage (Maximum)	VCE	140V
Collector Current (Maximum)	IC	1.5A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		40
Transition Frequency	FT	60MHz

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