2S191 PNP Transistor

The 2S191 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the 2S191 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2S191 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 2S191 transistor as follows.

2S191 Transistor Specification

Transistor Code		2S191
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Germanium(GE)
Package		TO1
Collector Power Dissipation (Maximum)	PC	0.25W
Collector-Base Voltage (Maximum)	VCB	35V
Collector Current (Maximum)	IC	0.04A
Operating Junction Temperature (Maximum)	TJ	75°C
Emitter-Base Voltage (Maximum)	VEB	20V
Forward Current Transfer Ratio (hFE Value)		45
Transition Frequency	FT	2MHz
Collector Capacitance	CC	12pF

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