BLW78 NPN Transistor

The BLW78 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BLW78 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BLW78 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 BLW78 transistor as follows.

BLW78 Transistor Specification

Transistor Code		BLW78
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		M174
Collector Power Dissipation (Maximum)	PC	135W
Collector-Base Voltage (Maximum)	VCB	70V
Collector-Emitter Voltage (Maximum)	VCE	35V
Collector Current (Maximum)	IC	25A
Operating Junction Temperature (Maximum)	TJ	200°C
Emitter-Base Voltage (Maximum)	VEB	4V
Forward Current Transfer Ratio (hFE Value)		20
Transition Frequency	FT	150MHz
Collector Capacitance	CC	170pF

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