CK421 NPN Transistor

The CK421 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the CK421 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The CK421 transistor symbol shows an arrow from the base into the emitter. This means that the current flows from collector terminal to emitter terminal.

Circuit diagram symbol of the CK421 transistor as follows.

CK421 Transistor Specification

Transistor Code		CK421
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO5
Collector Power Dissipation (Maximum)	PC	0.25W
Collector-Base Voltage (Maximum)	VCB	50V
Collector-Emitter Voltage (Maximum)	VCE	30V
Collector Current (Maximum)	IC	0.05A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	1.5V
Forward Current Transfer Ratio (hFE Value)		60
Transition Frequency	FT	10MHz
Collector Capacitance	CC	5pF

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