***********************************************************************
***********           PANJIT International Inc.             ***********
***********************************************************************
*Jun 25, 2021                                                         *
*                                                                     *
*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 BZT52-B30S A K 
.param
+vc0 = 2.846e-11	vc1 = 1.386e-11		vc2 = 1.000		vc3 = 2.003e-12		vc4 = 1.537e-1
+tc1 = 3.051e-2		tc2 = 2.021e-2		tc3 = 2.321e-2		tc4 = 2.101e-2
.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)))}
d1 A K zener
g1 K A value = {irexp(v(K,A))}
.model zener d
***** flag parameter *****
+level = 1
***** dc model parameter *****
+ is = 1.428e-14		   n = 1.129		  rs = 5.668e-1
+ibv = 5.0e-3			 nbv = 1.0		  bv = 30
+ikf = 7.073e-3
***** capacitance parameter *****
+cjo = 1.607e-11		   m = 3.577e-1		  vj = 6.419e-1 
+ fc = 0.5
***** temperature coefficient *****
+tnom = 25			  eg = 1.134		 xti = 3
+trs1 = 2.067e-4		trs2 = 1.085e-7		tikf = 1.0e-2
+tbv1 = 7.809e-4		tbv2 = 2.297e-7	
.ends BZT52-B30S
*$
