W21 PNP Transistor

The W21 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the W21 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The W21 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 W21 transistor as follows.

W21 Transistor Specification

Transistor Code		W21
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Silicon(SI)
Package		X55-1
Collector Power Dissipation (Maximum)	PC	0.36W
Collector-Base Voltage (Maximum)	VCB	40V
Collector-Emitter Voltage (Maximum)	VCE	40V
Collector Current (Maximum)	IC	0.2A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		50
Transition Frequency	FT	200MHz
Collector Capacitance	CC	4.5pF

UXPython is not the creator or an official representative of the W21 PNP transistor. You can download the official W21 PNP transistor datasheet to get more infromation about this transistor.

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