SFT321 PNP Transistor

The SFT321 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the SFT321 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The SFT321 transistor symbol shows an arrow from the emitter into the base. This means that the current flows from emitter to collector terminal.

Circuit diagram symbol of the SFT321 transistor as follows.

SFT321 Transistor Specification

Transistor Code		SFT321
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Germanium(GE)
Package		TO1
Collector Power Dissipation (Maximum)	PC	0.2W
Collector-Base Voltage (Maximum)	VCB	24V
Collector-Emitter Voltage (Maximum)	VCE	18V
Collector Current (Maximum)	IC	0.25A
Operating Junction Temperature (Maximum)	TJ	85°C
Emitter-Base Voltage (Maximum)	VEB	12V
Forward Current Transfer Ratio (hFE Value)		30
Transition Frequency	FT	0.7MHz
Collector Capacitance	CC	4.5pF

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