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                                                                       STP20NM50FD
                                                                      STB20NM50FD-1
                          N-CHANNEL 500V - 0.22 - 20A TO-220/I2PAK
                          FDmeshTM Power MOSFET (with FAST DIODE)

      TYPE         VDSS    RDS(on)   Rds(on)*Qg    ID

STP20NM50FD        500V    <0.25     8.36 *nC     20 A
STB20NM50FD-1      500V    <0.25     8.36 *nC     20 A
s   TYPICAL RDS(on) = 0.22
s   HIGH dv/dt AND AVALANCHE CAPABILITIES
s   100% AVALANCHE TESTED                                                         3
                                                                                                12
                                                                                                     3
                                                                              2
s   LOW INPUT CAPACITANCE AND GATE CHARGE                                 1

                                                                     TO-220                 I2PAK
s   LOW GATE INPUT RESISTANCE                                                         (Tabless TO-220)
s   TIGHT PROCESS CONTROL AND HIGH
    MANUFACTURING YIELDS



DESCRIPTION
The FDmeshTM associates all advantages of reduced                INTERNAL SCHEMATIC DIAGRAM
on-resistance and fast switching with an intrinsic fast-
recovery body diode. It is therefore strongly recom-
mended for bridge topologies, in particular ZVS phase-
shift converters.




APPLICATIONS
s ZVS PHASE-SHIFT FULL BRIDGE CONVERTERS
  FOR SMPS AND WELDING EQUIPMENT




ORDERING INFORMATION
      SALES TYPE                 MARKING                   PACKAGE                    PACKAGING
      STP20NM50FD               P20NM50FD                   TO-220                       TUBE
     STB20NM50FD-1             B20NM50FD-1                   2                           TUBE
                                                            I PAK




August 2003                                                                                              1/9
STP20NM50FD/STB20NM50FD-1

ABSOLUTE MAXIMUM RATINGS
      Symbol                            Parameter                                        Value               Unit
        VDS       Drain-source Voltage (VGS = 0)                                          500                 V
       VDGR       Drain-gate Voltage (RGS = 20 k)                                         500                 V
        VGS       Gate- source Voltage                                                    

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