2N1728 PNP Transistor

The 2N1728 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the 2N1728 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2N1728 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 2N1728 transistor as follows.

2N1728 Transistor Specification

Transistor Code		2N1728
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Germanium(GE)
Package		TO9
Collector Power Dissipation (Maximum)	PC	0.06W
Collector-Base Voltage (Maximum)	VCB	20V
Collector-Emitter Voltage (Maximum)	VCE	12V
Collector Current (Maximum)	IC	0.05A
Operating Junction Temperature (Maximum)	TJ	75°C
Forward Current Transfer Ratio (hFE Value)		40
Transition Frequency	FT	100MHz
Collector Capacitance	CC	2.5pF

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