BD144 NPN Transistor

The BD144 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the BD144 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BD144 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 BD144 transistor as follows.

BD144 Transistor Specification

Transistor Code		BD144
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO3
Collector Power Dissipation (Maximum)	PC	8W
Collector-Base Voltage (Maximum)	VCB	400V
Collector-Emitter Voltage (Maximum)	VCE	400V
Collector Current (Maximum)	IC	0.25A
Operating Junction Temperature (Maximum)	TJ	135°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		5
Transition Frequency	FT	6MHz

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