***********************************************************************
***********           PANJIT International Inc.             ***********
***********************************************************************
*Jan 09, 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 P6SMBJ28CA-AU 1 2
.param
+vc0 = 3.912e-10       vc1 = 7.316e-11		vc2 = 1.000             vc3 = 1.067e-11			vc4 = 6.107e-2
+tc1 = 4.232e-2	    tc2 = 2.851e-2		tc3 = 2.273e-2		tc4 = 4.507e-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) {3.209e-1*min(i,0)}
.model zener d
***** dc model parameter *****
+ is = 1.000e-14	   n = 1.000	        rs = 1e-4
+ibv = 1e-3		 nbv = 1.100		  bv = 32.05
***** capacitance parameter *****
+cjo = 4.717e-10		   m = 2.507e-1		  vj = 1.084
+ fc = 0.5
***** temperature coefficient *****
+tnom = 25		  eg = 1.000		 xti = 3
+tbv1 = 7.989e-4   tbv2 = 2.609e-7  
.ends P6SMBJ28CA-AU
*$