BLT81 NPN Transistor

The BLT81 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BLT81 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BLT81 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 BLT81 transistor as follows.

BLT81 Transistor Specification

Transistor Code		BLT81
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		SOT223
Collector Power Dissipation (Maximum)	PC	2W
Collector-Base Voltage (Maximum)	VCB	20V
Collector-Emitter Voltage (Maximum)	VCE	9.5V
Collector Current (Maximum)	IC	0.5A
Operating Junction Temperature (Maximum)	TJ	175°C
Emitter-Base Voltage (Maximum)	VEB	2.5V
Forward Current Transfer Ratio (hFE Value)		25
Collector Capacitance	CC	2.7pF

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