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                   BFU725F/N1
                   NPN wideband silicon germanium RF transistor
                   Rev. 01 -- 13 July 2009                                                   Product data sheet




1. Product profile

          1.1 General description
              NPN silicon germanium microwave transistor for high speed, low noise applications in a
              plastic, 4-pin dual-emitter SOT343F package.

CAUTION
                     This device is sensitive to ElectroStatic Discharge (ESD). Observe precautions for handling
                     electrostatic sensitive devices.
                     Such precautions are described in the ANSI/ESD S20.20, IEC/ST 61340-5, JESD625-A or
                     equivalent standards.


          1.2 Features
              I    Low noise high gain microwave transistor
              I    Noise figure (NF) = 0.7 dB at 5.8 GHz
              I    High maximum stable gain 27 dB at 1.8 GHz
              I    110 GHz fT silicon germanium technology

          1.3 Applications
              I    2nd LNA stage and mixer stage in DBS LNB's
              I    Satellite radio
              I    Low noise amplifiers for microwave communications systems
              I    WLAN and CDMA applications
              I    Analog/digital cordless applications
              I    Ka band oscillators (DRO's)

          1.4 Quick reference data
              Table 1.     Quick reference data
              Symbol Parameter                        Conditions                       Min    Typ   Max    Unit
              VCBO        collector-base voltage      open emitter                     -      -     10     V
              VCEO        collector-emitter voltage   open base                        -      -     2.8    V
              VEBO        emitter-base voltage        open collector                   -      -     0.55   V
              IC          collector current                                            -      25    40     mA
              Ptot        total power dissipation     Tsp  90 

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