CTN491 PNP Transistor

The CTN491 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the CTN491 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The CTN491 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 CTN491 transistor as follows.

CTN491 Transistor Specification

Transistor Code		CTN491
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Silicon(SI)
Package		TO237
Collector Power Dissipation (Maximum)	PC	0.75W
Collector-Base Voltage (Maximum)	VCB	200V
Collector-Emitter Voltage (Maximum)	VCE	200V
Collector Current (Maximum)	IC	0.5A
Operating Junction Temperature (Maximum)	TJ	150°C
Forward Current Transfer Ratio (hFE Value)		25
Transition Frequency	FT	50MHz
Collector Capacitance	CC	2pF

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