2SD1921 NPN Transistor

The 2SD1921 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the 2SD1921 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2SD1921 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 2SD1921 transistor as follows.

2SD1921 Transistor Specification

Transistor Code		2SD1921
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		SOT33
Collector Power Dissipation (Maximum)	PC	0.4W
Collector-Base Voltage (Maximum)	VCB	50V
Collector Current (Maximum)	IC	0.5A
Operating Junction Temperature (Maximum)	TJ	150°C
Forward Current Transfer Ratio (hFE Value)		40
Transition Frequency	FT	250MHz

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