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Device Modeling Report



 COMPONENTS: PIN Diode
 PART NUMBER: L303EC
 MANUFACTURER: Litec Corporation




              Bee Technologies Inc.



All Rights Reserved Copyright (C) Bee Technologies Inc. 2005
PSpice model
                                      Model description
 parameter
     IS         Saturation Current
     N          Emission Coefficient
     RS         Series Resistance
    IKF         High-injection Knee Current
    CJO         Zero-bias Junction Capacitance
     M          Junction Grading Coefficient
     VJ         Junction Potential
    ISR         Recombination Current Saturation Value
     BV         Reverse Breakdown Voltage(a positive value)
    IBV         Reverse Breakdown Current(a positive value)
     TT         Transit Time
    EG          Energy-band Gap




               All Rights Reserved Copyright (C) Bee Technologies Inc. 2005
Forward Current Characteristic
Circuit Simulation Result


                 1.0A




                100mA




                 10mA




                1.0mA
                    0.3V                                        1.0V          1.3V
                            I(R1)
                                                       V_V1




Evaluation Circuit


                                               R1


                                               0.01m


                                     V1                           U1
                             0Vdc
                                                                  L303EC




                                                 0




                     All Rights Reserved Copyright (C) Bee Technologies Inc. 2005
Comparison Graph

Circuit Simulation Result




Simulation Result


                                              VF(V)
         IF(mA)                                                                    Error(%)
                            Measurement                Simulation
             1.000                       0.660                      0.661               0.152
             2.000                       0.690                      0.692               0.290
             5.000                       0.735                      0.734              -0.136
            10.000                       0.765                      0.766               0.131
            20.000                       0.800                      0.800               0.000
            50.000                       0.848                      0.844              -0.472
           100.000                       0.880                      0.882               0.227
           200.000                       0.925                      0.926               0.108
           500.000                       1.010                      1.010               0.000
          1000.000                       1.108                      1.107              -0.090




                    All Rights Reserved Copyright (C) Bee Technologies Inc. 2005
Junction Capacitance Characteristic

Circuit Simulation Result


                 10p




                1.0p




                100f
                   1.0V                              10V                      100V
                           I(V2)/(180V/1us)
                                                V(N12656)




Evaluation Circuit


                                                V2


                                                     0Vdc


                           V2 = 180     V1                          U1
                           TD = 0
                           V1 = 0                                    L303EC
                           TR = 1us
                           PW = 50us
                           TF = 10ns
                           PER = 10us



                                                     0




                     All Rights Reserved Copyright (C) Bee Technologies Inc. 2005
Comparison Graph

Circuit Simulation Result




Simulation Result


                                        Ct(pF)
            VR(V)                                                             Error(%)
                              Measurement      Simulation
                1.000                 2.180            2.106                       -3.394
                2.000                 1.900            1.905                        0.263
                5.000                 1.670            1.670                        0.000
               10.000                 1.520            1.502                       -1.184
               20.000                 1.380            1.359                       -1.522
               50.000                 1.200            1.188                       -1.000




                    All Rights Reserved Copyright (C) Bee Technologies Inc. 2005
Reverse Characteristic

Circuit Simulation Result



                 10nA




                1.0nA




                100pA




                 10pA
                   100mV              1.0V             10V             100V    1.0KV
                       -I(V1)
                                                       V_V1




Evaluation Circuit



                                               R1


                                               0.01m


                                     V1                           U1
                             0Vdc
                                                                  L303EC




                                                 0




                     All Rights Reserved Copyright (C) Bee Technologies Inc. 2005
Comparison Graph

Circuit Simulation Result




Simulation Result


                                               VR(V)
              IR(nA                                                         Error(%)
                               Measurement             Simulation
                     0.050            5.500                    5.500                0.000
                     0.100           20.000                  19.700                -1.500
                     0.200           43.000                  42.300                -1.628
                     0.500           90.000                  89.500                -0.556
                     0.600          105.000                 105.000                 0.000




                    All Rights Reserved Copyright (C) Bee Technologies Inc. 2005