2SB1557 PNP Transistor

The 2SB1557 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the 2SB1557 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2SB1557 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 2SB1557 transistor as follows.

2SB1557 Transistor Specification

Transistor Code		2SB1557
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)		5
Transition Frequency	FT	30MHz
Collector Capacitance	CC	120pF

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