D1666 NPN Transistor

The D1666 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the D1666 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The D1666 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 D1666 transistor as follows.

D1666 Transistor Specification

Transistor Code		D1666
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Silicon(SI)
Package		TO98
Collector Power Dissipation (Maximum)	PC	0.2W
Collector-Base Voltage (Maximum)	VCB	30V
Collector-Emitter Voltage (Maximum)	VCE	12V
Collector Current (Maximum)	IC	0.025A
Operating Junction Temperature (Maximum)	TJ	175°C
Forward Current Transfer Ratio (hFE Value)		20
Transition Frequency	FT	500MHz
Collector Capacitance	CC	1.5pF

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