***********************************************************************
***********           PANJIT International Inc.             ***********
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*July 31, 2023                                                         *
*                                                                     *
*This SPICE Model describes the characteristics of a typical device   *
*and does not respresent the specification. Designer should refer to  *
*the same type name data sheet for specification limits.              *
***********************************************************************
*$
.subckt SM8S16A-AU A K 
.param
+vc0 = 8.063e-10     vc1 = 1.505e-10	 vc2 = 1.000     vc3 = 9.005e-10		vc4 = 3.057e-1 
+tc1 = 3.911e-2		 tc2 = 4.011e-2       tc3 = 5.821e-2	      	tc4 = 2.011e-2                             
d1 A A1 zener
g1 A1 A value = {irexp(v(A1,A))}
v1 A1 K1 0
e1 K1 K value = {rbv(i(v1))}
.func irexp(v) {(vc0+vc1*v^vc2)*(1.0+tc1*(temp-25)*exp(tc2*(temp-25)))+(vc3*exp(vc4*v))*(1.0+tc3*(temp-25)*exp(tc4*(temp-25)))}
.func rbv(i) {8.999E-03*min(i,0)}
.model zener d
***** dc model parameter *****
+ is = 6.241E-13	   n = 1.025		  rs = 1.300E-03
+ibv = 5e-3		 nbv = 2.6		  bv = 18.8
+ikf =8.0810E+00
***** capacitance parameter *****
+cjo = 2.105E-08		   m = 3.394E-01		  vj = 5.905E-01
+ fc = 0.5
***** temperature coefficient *****
+tnom = 25		  eg = 1.100		 xti = 3
+trs1 = 1.567e-4	 trs2 = 7.503e-6   tbv1 = 7.439e-4   tbv2 = 1.009e-7   tikf = 1.200e-2
.ends SM8S16A-AU
*$
