.MODEL UDZS4_3B D
+ IS=2.4374E-15
+ N=1.0950
+ RS=.14608
+ IKF=1.3284
+ CJO=50.200E-12
+ M=.28563
+ VJ=.47825
+ BV=4.3000
+ IBV=50.000E-6
+ TT=72.135E-9