BFX57I NPN Transistor

The BFX57I is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BFX57I transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BFX57I 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 BFX57I transistor as follows.

BFX57I Transistor Specification

Transistor Code		BFX57I
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO12
Collector Power Dissipation (Maximum)	PC	2W
Collector-Base Voltage (Maximum)	VCB	30V
Collector-Emitter Voltage (Maximum)	VCE	20V
Collector Current (Maximum)	IC	0.1A
Operating Junction Temperature (Maximum)	TJ	200°C
Emitter-Base Voltage (Maximum)	VEB	3V
Forward Current Transfer Ratio (hFE Value)		66
Transition Frequency	FT	600MHz
Collector Capacitance	CC	1pF

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