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2N4998 NPN Transistor

The 2N4998 is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the 2N4998 transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2N4998 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 2N4998 transistor as follows.

Circuit diagram symbol of the 2N4998 transistor

2N4998 Transistor Specification

Transistor Code 2N4998
Transistor Type BJT
Transistor Polarity NPN
Transistor Material Silicon(SI)
Package TO59
Collector Power Dissipation (Maximum) PC 20W
Collector-Base Voltage (Maximum) VCB 100V
Collector-Emitter Voltage (Maximum) VCE 80V
Collector Current (Maximum) IC 2A
Operating Junction Temperature (Maximum) TJ 200°C
Emitter-Base Voltage (Maximum) VEB 6V
Forward Current Transfer Ratio (hFE Value) 30
Transition Frequency FT 50MHz

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