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BF657 NPN Transistor

The BF657 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BF657 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BF657 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 BF657 transistor as follows.

Circuit diagram symbol of the BF657 transistor

BF657 Transistor Specification

Transistor Code BF657
Transistor Type BJT
Transistor Polarity NPN
Transistor Material Silicon(SI)
Package TO39
Collector Power Dissipation (Maximum) PC 7W
Collector-Base Voltage (Maximum) VCB 160V
Collector-Emitter Voltage (Maximum) VCE 160V
Collector Current (Maximum) IC 0.2A
Operating Junction Temperature (Maximum) TJ 200°C
Emitter-Base Voltage (Maximum) VEB 5V
Forward Current Transfer Ratio (hFE Value) 25
Transition Frequency FT 50MHz
Collector Capacitance CC 5pF

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