2N4449UB NPN Transistor

The 2N4449UB is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the 2N4449UB transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2N4449UB 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 2N4449UB transistor as follows.

2N4449UB Transistor Specification

Transistor Code		2N4449UB
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		UB
Collector Power Dissipation (Maximum)	PC	1.4W
Collector-Base Voltage (Maximum)	VCB	40V
Collector-Emitter Voltage (Maximum)	VCE	20V
Collector Current (Maximum)	IC	0.1A
Operating Junction Temperature (Maximum)	TJ	200°C
Emitter-Base Voltage (Maximum)	VEB	6V
Forward Current Transfer Ratio (hFE Value)		20
Collector Capacitance	CC	4pF

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