START499D NPN Transistor

The START499D is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the START499D transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The START499D 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 START499D transistor as follows.

START499D Transistor Specification

Transistor Code		START499D
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		SOT89
Transistor SMD Code		D499
Collector Power Dissipation (Maximum)	PC	1.7W
Collector-Emitter Voltage (Maximum)	VCE	4.5V
Collector Current (Maximum)	IC	1A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	1.5V
Forward Current Transfer Ratio (hFE Value)		150
Transition Frequency	FT	900MHz

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