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BF559 PNP Transistor

The BF559 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the BF559 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The BF559 transistor symbol shows an arrow from the emitter into the base. This means that the current flows from emitter to collector terminal.

Circuit diagram symbol of the BF559 transistor as follows.

Circuit diagram symbol of the BF559 transistor

BF559 Transistor Specification

Transistor Code BF559
Transistor Type BJT
Transistor Polarity PNP
Transistor Material Silicon(SI)
Package SOT33
Collector Power Dissipation (Maximum) PC 0.36W
Collector-Base Voltage (Maximum) VCB 20V
Collector-Emitter Voltage (Maximum) VCE 15V
Collector Current (Maximum) IC 0.05A
Operating Junction Temperature (Maximum) TJ 150°C
Emitter-Base Voltage (Maximum) VEB 5V
Forward Current Transfer Ratio (hFE Value) 50
Transition Frequency FT 800MHz
Collector Capacitance CC 4pF

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