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                                                                   BU941/BU941P
                                                                       BU941PFI
                                  HIGH VOLTAGE IGNITION COIL DRIVER
                                            NPN POWER DARLINGTON
s   SGS-THOMSON PREFERRED SALESTYPE
s    NPN DARLINGTON
s   INTEGRATED ANTIPARALLEL
    COLLECTOR-EMITTER DIODE
s   VERY RUGGED BIPOLAR TECHNOLOGY                                                        TO-3
s   HIGH OPERATING JUNCTION
    TEMPERATURE
                                                                   1
s   WIDE RANGE OF PACKAGES                                                  2

APPLICATIONS
s HIGH RUGGEDNESS ELECTRONIC
  IGNITIONS
                                                                            3                                   3
                                                                        2                               2
                                                     TO-218        1             ISOWATT218       1




                                                      INTERNAL SCHEMATIC DIAGRAM



                                                                                       for TO-3
                                                                                       Emitter: pin 2
                                                                                       Base: pin1
                                                                                       Collector: tab




ABSOLUTE MAXIMUM RATINGS
    Symbol                        Parameter                            Value                          Uni t
                                                       BU941           BU941P      BUB941PFI
     V CES    Collector-Emitter Voltage (V BE = 0)                      500                             V
     V CEO    Collector-Emitter Voltage (I B = 0)                       400                             V
     V EBO    Emitter-Base Voltage (I C = 0)                                5                           V
      IC      Collector Current                                             15                          A
     I CM     Collector Peak Current                                        30                          A
      IB      Base Current                                                  1                           A
     I BM     Base Peak Current                                             5                           A
     P t ot   Total Dissipation at T c = 25 oC           180            155            65               W
                                                                                                        o
     T stg    Storage Temperature                     -65 to 200   -65 to 175       -65 to 175              C
                                                                                                        o
      Tj      Max. O perating Junction Temperature       200            175            175                  C

September 1997                                                                                                  1/8
BU941/BU941P/BUB941PFI

THERMAL DATA
                                                                        TO-3         TO-218   ISOW ATT 218
                                                                                                                  o
  R t hj-ca se   Thermal Resistance Junction-case             Max       0.97          0.97            2.3             C/W


ELECTRICAL CHARACTERISTICS (Tcase = 25 oC unless otherwise specified)
  Symb ol              Parameter                           Test Cond ition s           Min.   Typ .     Max.      Un it
      I CES      Collector Cut-off            V CE = 500 V                                                  100   

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