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PT657 NPN Transistor

The PT657 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the PT657 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The PT657 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 PT657 transistor as follows.

Circuit diagram symbol of the PT657 transistor

PT657 Transistor Specification

Transistor Code PT657
Transistor Type BJT
Transistor Polarity NPN
Transistor Material Silicon(SI)
Package TO61
Collector Power Dissipation (Maximum) PC 25W
Collector-Base Voltage (Maximum) VCB 100V
Collector-Emitter Voltage (Maximum) VCE 80V
Collector Current (Maximum) IC 1.2A
Operating Junction Temperature (Maximum) TJ 200°C
Forward Current Transfer Ratio (hFE Value) 15
Transition Frequency FT 140MHz
Collector Capacitance CC 30pF

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