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KT664A9 PNP Transistor

The KT664A9 is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the KT664A9 transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The KT664A9 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 KT664A9 transistor as follows.

Circuit diagram symbol of the KT664A9 transistor

KT664A9 Transistor Specification

Transistor Code KT664A9
Transistor Type BJT
Transistor Polarity PNP
Transistor Material Silicon(SI)
Collector Power Dissipation (Maximum) PC 0.3W
Collector-Base Voltage (Maximum) VCB 120V
Collector-Emitter Voltage (Maximum) VCE 100V
Collector Current (Maximum) IC 1A
Operating Junction Temperature (Maximum) TJ 150°C
Emitter-Base Voltage (Maximum) VEB 5V
Forward Current Transfer Ratio (hFE Value) 40
Transition Frequency FT 140MHz
Collector Capacitance CC 25pF

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