2SD1781K NPN Transistor

The 2SD1781K is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the 2SD1781K transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2SD1781K 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 2SD1781K transistor as follows.

2SD1781K Transistor Specification

Transistor Code		2SD1781K
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		SMT3 SC-59
Collector Power Dissipation (Maximum)	PC	0.2W
Collector-Base Voltage (Maximum)	VCB	40V
Collector-Emitter Voltage (Maximum)	VCE	32V
Collector Current (Maximum)	IC	0.8A
Operating Junction Temperature (Maximum)	TJ	150°C
Emitter-Base Voltage (Maximum)	VEB	5V
Forward Current Transfer Ratio (hFE Value)		120
Transition Frequency	FT	150MHz
Collector Capacitance	CC	15pF

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