***********************************************************************
***********           PANJIT International Inc.             ***********
***********************************************************************
*Nov 22, 2019                                                         *
*                                                                     *
*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-C22 A K 
.param
+vc0 = 4.986e-11	 vc1 = 5.083e-11	vc2 = 1.000e0		 vc3 = 1.391e-10		 vc4 = 1.210e-1
+tc1 = 5.091e-3		 tc2 = 1.611e-2		tc3 = 5.091e-3		 tc4 = 1.611e-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 = 1.365e-14	   n = 1.115		  rs = 4.281e-1
+ibv =5e-3		 nbv = 1.0		  bv = 22
+ikf = 4.866e-3
***** capacitance parameter *****
+cjo = 1.975e-11	   m = 3.593e-1		  vj = 6.873e-1 
+ fc = 0.5
***** temperature coefficient *****	
+tnom = 25		  eg =1.148		 xti = 3
+trs1 = -3.025e-4	trs2 = -6.925e-7	tikf = 9.851e-3
+tbv1 = 8.305e-4	tbv2 = -3.715e-7
.ends BZT52-C22
*$
