.MODEL UDZS4_7B D + IS=1.9159E-15 + N=1.0832 + RS=.23173 + IKF=3.9535 + CJO=45.688E-12 + M=.32312 + VJ=.6206 + BV=4.6500 + IBV=50.000E-6 + TT=73.577E-9