***********************************************************************
***********           PANJIT International Inc.             ***********
***********************************************************************
*Nov 28, 2025                                                         *
*                                                                     *
*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 SM8H36CAS-AU 1 2
.param
+vc0 = 1.512e-10	vc1 = 1.224e-10		vc2 = 7.000e-1	        vc3 = 1.067e-11		vc4 = 1.812e-1
+tc1 = 5.032e-2		tc2 = 4.284e-2		tc3 = 7.816e-2		tc4 = 2.218e-2
d1   1 c11 zener
g1 c11   1 value = {irexp(v(c11, 1))}
v1 c11 c12 0
e1 c12 c   value = {rbv(i(v1))}
d2   2 c21 zener
g2 c21   2 value = {irexp(v(c21, 2))}
v2 c21 c22 0
e2 c22   c value = {rbv(i(v2))}
.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) {4.168e-2*min(i,0)}
.model zener d
***** dc model parameter *****
+ is = 1.000e-15	  n = 1.100	         rs = 1.000e-3
+ibv = 5.000e-3		nbv = 1.000		 bv = 41.4
***** capacitance parameter *****
+cjo = 7.491e-9		  m = 3.657e-1		 vj = 1.352
+ fc = 0.5
***** temperature coefficient *****
+tnom = 25		 eg = 1.100		xti = 3
+trs1 = 1.000e-3       tbv1 = 8.929e-4         tbv2 = -5.329e-7
.ends SM8H36CAS-AU
*$