BC399B NPN Transistor

The BC399B is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BC399B transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BC399B 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 BC399B transistor as follows.

BC399B Transistor Specification

Transistor Code		BC399B
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		U21
Collector Power Dissipation (Maximum)	PC	0.075W
Collector-Base Voltage (Maximum)	VCB	30V
Collector-Emitter Voltage (Maximum)	VCE	20V
Collector Current (Maximum)	IC	0.075A
Operating Junction Temperature (Maximum)	TJ	125°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		240

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