2SB1557B PNP Transistor

The 2SB1557B is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the 2SB1557B transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2SB1557B 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 2SB1557B transistor as follows.

2SB1557B Transistor Specification

Transistor Code		2SB1557B
Transistor Type		BJT
Transistor Polarity		PNP
Transistor Material		Silicon(SI)
Package		TO264
Collector Power Dissipation (Maximum)	PC	70W
Collector-Base Voltage (Maximum)	VCB	140V
Collector-Emitter Voltage (Maximum)	VCE	140V
Collector Current (Maximum)	IC	7A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		9
Transition Frequency	FT	30MHz
Collector Capacitance	CC	120pF

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