2N1218 NPN Transistor

The 2N1218 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the 2N1218 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2N1218 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 2N1218 transistor as follows.

2N1218 Transistor Specification

Transistor Code		2N1218
Transistor Type		BJT
Transistor Polarity		NPN
Transistor Material		Germanium(GE)
Package		TO3
Collector Power Dissipation (Maximum)	PC	20W
Collector-Base Voltage (Maximum)	VCB	45V
Collector-Emitter Voltage (Maximum)	VCE	30V
Collector Current (Maximum)	IC	3A
Operating Junction Temperature (Maximum)	TJ	90°C
Emitter-Base Voltage (Maximum)	VEB	15V
Forward Current Transfer Ratio (hFE Value)		30
Transition Frequency	FT	0.07MHz

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