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                   BFR540
                   NPN 9 GHz wideband transistor
                   Rev. 05 -- 1 September 2004                                     Product data sheet




1. Product profile

          1.1 General description
              The BFR540 is an NPN silicon planar epitaxial transistor in a SOT23 plastic package.

          1.2 Features
              s     High power gain
              s     Low noise figure
              s     High transition frequency
              s     Gold metallization ensures excellent reliability.

          1.3 Applications
              s RF front end wideband applications in the GHz range
                x Analog and digital cellular telephones
                x Cordless telephones (CT1, CT2, DECT, etc.)
                x Radar detectors
                x Satellite TV tuners (SATV)
                x MATV/CATV amplifiers
                x Repeater amplifiers in fiber-optic systems.

          1.4 Quick reference data
              Table 1:     Quick reference data
              Symbol       Parameter                 Conditions                        Min   Typ   Max   Unit
              VCBO         collector-base voltage    open emitter                      -     -     20    V
              VCES         collector-emitter         RBE = 0                           -     -     15    V
                           voltage
              IC           collector current (DC)                                      -     -     120   mA
              Ptot         total power dissipation   Tsp  70 

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