BLW21 NPN Transistor

The BLW21 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BLW21 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BLW21 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 BLW21 transistor as follows.

BLW21 Transistor Specification

Transistor Code		BLW21
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO128
Collector Power Dissipation (Maximum)	PC	80W
Collector-Base Voltage (Maximum)	VCB	36V
Collector-Emitter Voltage (Maximum)	VCE	18V
Collector Current (Maximum)	IC	7A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	4V
Forward Current Transfer Ratio (hFE Value)		10
Transition Frequency	FT	20MHz

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