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BD257-100 NPN Transistor

The BD257-100 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BD257-100 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BD257-100 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 BD257-100 transistor as follows.

Circuit diagram symbol of the BD257-100 transistor

BD257-100 Transistor Specification

Transistor Code BD257-100
Transistor Type BJT
Transistor Polarity NPN
Transistor Material Silicon(SI)
Package TOP3
Collector Power Dissipation (Maximum) PC 125W
Collector-Base Voltage (Maximum) VCB 100V
Collector-Emitter Voltage (Maximum) VCE 100V
Collector Current (Maximum) IC 25A
Operating Junction Temperature (Maximum) TJ 150°C
Forward Current Transfer Ratio (hFE Value) 10
Transition Frequency FT 3MHz

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