STD123 NPN Transistor

The STD123 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the STD123 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The STD123 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 STD123 transistor as follows.

STD123 Transistor Specification

Transistor Code		STD123
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO-92
Collector Power Dissipation (Maximum)	PC	0.625W
Collector-Base Voltage (Maximum)	VCB	20V
Collector-Emitter Voltage (Maximum)	VCE	15V
Collector Current (Maximum)	IC	1A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	6.5V
Forward Current Transfer Ratio (hFE Value)		150
Transition Frequency	FT	260MHz
Collector Capacitance	CC	5pF

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