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MPS4257 NPN Transistor

The MPS4257 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the MPS4257 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The MPS4257 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 MPS4257 transistor as follows.

Circuit diagram symbol of the MPS4257 transistor

MPS4257 Transistor Specification

Transistor Code MPS4257
Transistor Type BJT
Transistor Polarity NPN
Transistor Material Silicon(SI)
Package TO92
Collector Power Dissipation (Maximum) PC 0.35W
Collector-Base Voltage (Maximum) VCB 12V
Collector-Emitter Voltage (Maximum) VCE 12V
Collector Current (Maximum) IC 0.1A
Operating Junction Temperature (Maximum) TJ 150°C
Emitter-Base Voltage (Maximum) VEB 4V
Forward Current Transfer Ratio (hFE Value) 30
Transition Frequency FT 700MHz
Collector Capacitance CC 3pF

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