.MODEL RB450F D + IS=35.450E-9 + N=1.0280 + RS=1.2870 + IKF=8.7600 + XTI=2 + EG=.69 + CJO=19.204E-12 + M=.406 + VJ=.360 + BV=40 + IBV=1.0000E-6 + TT=8.6562E-9 *$