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                                                                                   SGSF313
                                                                                  SGSF313PI
                                             HIGH VOLTAGE FAST-SWITCHING
                                                  NPN POWER TRANSISTORS
s    HIGH VOLTAGE CAPABILITY (450V VCEO)
s    VERY HIGH SWITCHING SPEED: tf = 35ns
     TYPICAL AT IC = 2.5A, IB1 = 0.5A, VBEoff = -5V
s    LOW SATURATION VOLTAGE
s    COMPLETE CHARACTERIZATION AT 100 oC
s    U.L. RECOGNISED ISOWATT220 PACKAGE
     (U.L. FILE # E81734 (N)).

APPLICATION                                                                   3                           3
                                                                          2                         2
s SWITCH MODE POWER SUPPLIES                                         1                          1
s FLYBACK AND FORWARD SINGLE
  TRANSISTOR LOW POWER CONVERTERS
                                                          TO-220                   ISOWATT220
DESCRIPTION
The SGSF313 and SGSF313PI are high voltage
NPN FASTSWITCHING transistors designed to
be used as switch in high efficency OFF-LINE
(220V mains) switching power supplies for
consumer applications like sets VCR's and               INTERNAL SCHEMATIC DIAGRAM
monitors.




ABSOLUTE MAXIMUM RATINGS
    Symb ol                      Parameter                               Valu e                 Un it
                                                          SGSF 313                SGSF 313PI
     V CEX    Collector-Emitter Voltage (VBE = -2.5V)                    1000                        V
     V CES    Collector-Emitter Voltage (VBE = 0)                        1000                        V
     V CEO    Collector-Emitter Voltage (IB = 0)                          450                        V
     VEBO     Emitter-Base Voltage (IC = 0)                                10                        V
        IC    Collector Current                                            7                         A
      I CM    Collector Peak Current (tp < 5 ms)                           10                        A
        IB    Base Current                                                 3                         A
      I BM    Base Peak Current (tp < 5 ms)                                6                         A
                                           o
      P tot   T otal Dissipation at Tc = 25 C               70                       35             W
                                                                                                    o
     T s tg   Storage Temperature                                  -65 to 150                         C
                                                                                                    o
        Tj    Max. Operating Junction T emperature                    150                             C


September 1997                                                                                            1/7
SGSF313 / SGSF313PI

THERMAL DATA
                                                                                                TO-220           ISO WATT221
                                                                                                                                     o
  R t hj-ca se   Thermal Resistance Junction-Case                                      Max          1.78                3.57             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 = 1000 V                                                                 10           

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