.MODEL RB491D D
+ IS=7.5944E-6
+ N=.98802
+ RS=88.395E-3
+ IKF=1.1635
+ XTI=2
+ EG=.69
+ CJO=160.70E-12
+ M=.6285
+ VJ=.77524
+ BV=25
+ IBV=50E-6
+ TT=22.937E-9