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                                                                         D44H8 - D44H11
                                                                         D45H8 - D45H11

                                                      Complementary power transistors

Features
                                                            .




   Low collector-emitter saturation voltage                            TAB
   Fast switching speed

Applications
   Power amplifier                                                                            3
                                                                                          2
   Switching circuits                                                                 1

                                                                             TO-220
Description
The devices are manufactured in low voltage multi
epitaxial planar technology. They are intended for
general purpose linear and switching applications.         Figure 1.   Internal schematic diagram




Table 1.       Device summary
    Order codes            Marking                 Polarity             Package               Packaging

       D44H8                D44H8                    NPN                 TO-220                   Tube
      D44H11               D44H11                    NPN                 TO-220                   Tube
       D45H8                D45H8                    PNP                 TO-220                   Tube
      D45H11               D45H11                    PNP                 TO-220                   Tube




October 2009                                  Doc ID 4213 Rev 5                                            1/8
                                                                                                     www.st.com   8
Absolute maximum ratings                                              D44H8, D44H11, D45H8, D45H11


1         Absolute maximum ratings

          Table 2.    Absolute maximum ratings
            Symbol                              Parameter                         Value      Unit

                       Collector-emitter voltage (IB = 0) D44H8 - D45H8            60         V
             VCEO
                       Collector-emitter voltage (IB = 0) D44H11 - D45H11          80         V
             VEBO      Emitter-base voltage (IC = 0)                                5         V
               IC      Collector current                                           10         A
              ICM      Collector peak current                                      20         A
             PTOT      Total dissipation at Tcase = 25 



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