Silicon NPN Transistor
High frequency applications.

The 2SC2644 is a silicon NPN planar epitaxial transistor in a TO-92 type package. This device is designed for use in UHF and VHF amplifier applications.


Absolute Maximum Ratings: (TA = +25C unless otherwise specified)
Collector-Base Voltage, VCBO 25V
Collector-Emitter Voltage, VCEO 12V
Emitter-Base Voltage, VEBO 3V
Collector Current, IC 120mA
Total Device Dissipation (TA = +25C), PD 500mW
Operating Junction Temperature, TJ +125C
Storage Temperature Range, Tstg -55 to +125C

Electrical Characteristics:
(TA = +25C unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Forward Current Transfer Ratio hFE VCE = 5V, IC = 50mA 20 50 -  
Gain-Bandwidth Product fT IC = 30mA, VCE = 10V - 4 - GHz
Noise Figure NF IC = 10mA, VCB = 10V, f = 500MHz - 2,3 - dB

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