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2SB257 PNP Transistor

The 2SB257 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the 2SB257 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2SB257 transistor symbol shows an arrow from the emitter into the base. This means that the current flows from emitter to collector terminal.

Circuit diagram symbol of the 2SB257 transistor as follows.

Circuit diagram symbol of the 2SB257 transistor

2SB257 Transistor Specification

Transistor Code 2SB257
Transistor Type BJT
Transistor Polarity PNP
Transistor Material Germanium(GE)
Package TO1
Collector Power Dissipation (Maximum) PC 0.08W
Collector-Base Voltage (Maximum) VCB 18V
Collector Current (Maximum) IC 0.005A
Operating Junction Temperature (Maximum) TJ 75°C
Emitter-Base Voltage (Maximum) VEB 12V
Forward Current Transfer Ratio (hFE Value) 125
Transition Frequency FT 2MHz
Collector Capacitance CC 25pF

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