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                                                                                    2N3055
                                                                                    MJ2955

                                                   Complementary power transistors

Features
    Low collector-emitter saturation voltage
    Complementary NPN - PNP transistors

Applications
    General purpose
    Audio Amplifier
                                                                       1
Description                                                                 2
                                                                           TO-3
The devices are manufactured in epitaxial-base
planar technology and are suitable for audio,
power linear and switching applications.
                                                     Figure 1.   Internal schematic diagram




Table 1.     Device summary

        Order code                  Marking                Package                Packaging

           2N3055                   2N3055
                                                            TO-3                     tray
           MJ2955                   MJ2955




January 2008                                     Rev 7                                            1/7
.                                                                                           www.st.com   7
Absolute maximun rating                                                           2N3055 MJ2955


1            Absolute maximun rating

Table 2.        Absolute maximum rating
  Symbol                                   Parameter                       Value          Unit

                                                                    NPN    2N3055

                                                                    PNP   MJ2955

      VCBO     Collector-emitter voltage (IE = 0)                            100           V
      VCER     Collector-emitter voltage (RBE = 100 )                        70            V
      VCEO     Collector-emitter voltage (IB = 0)                            60            V
      VEBO     Collector-base voltage (IC = 0)                                7            V
        IC     Collector current                                             15            A
        IB     Base current                                                   7            A
      PTOT     Total dissipation at Tc 25

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