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MRF581A NPN Transistor

The MRF581A is a bipolar junction transistor (BJT) with an NPN-type configuration. That means the MRF581A transistor has a positively charged layer between two negatively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The MRF581A 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 MRF581A transistor as follows.

Circuit diagram symbol of the MRF581A transistor

MRF581A Transistor Specification

Transistor Code MRF581A
Transistor Type BJT
Transistor Polarity NPN
Transistor Material Silicon(SI)
Package TO50
Collector Power Dissipation (Maximum) PC 2.5W
Collector-Base Voltage (Maximum) VCB 30V
Collector-Emitter Voltage (Maximum) VCE 15V
Collector Current (Maximum) IC 0.2A
Operating Junction Temperature (Maximum) TJ 150°C
Emitter-Base Voltage (Maximum) VEB 2.5V
Forward Current Transfer Ratio (hFE Value) 90
Transition Frequency FT 1000MHz
Collector Capacitance CC 2pF

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