***********************************************************************
***********           PANJIT International Inc.             ***********
***********************************************************************
*Oct 18, 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-C3 A K 
.param
+vc0 = 6.446e-10	 vc1 = 3.846e-8		 vc2 = 2.500e0		 vc3 = 6.377e-7		 vc4 = 8.172e0
+tc1 = 3.651e-3		 tc2 = 2.921e-3		 tc3 = 3.151e-3		 tc4 = -4.021e-3
.func irpwr(v) {(vc0+vc1*v^vc2)*(1.0+tc1*(temp-25)*exp(tc2*(temp-25)))+(vc3*v^vc4)*(1.0+tc3*(temp-25)*exp(tc4*(temp-25)))}
d1 A K zener
g1 K A value = {irpwr(v(K,A))}
.model zener d
***** flag parameter *****
+level = 1 
***** dc model parameter *****
+ is = 9.832e-15	   n = 1.104		  rs = 4.250e-1
+ibv = 1e-3		 nbv = 6.0		  bv = 3
+ikf = 2.904e-1
***** capacitance parameter *****
+cjo = 1.896e-10	   m = 3.030e-1		  vj = 6.728e-1 
+ fc = 0.5
***** temperature coefficient *****
+tnom = 25		  eg = 1.134		 xti = 3
+trs1 = 6.985e-4	trs2 = 7.085e-6		tikf = 5e-3
+tbv1 = -0.906e-3	tbv2 = -1.900e-6
.ends BZT52-C3
*$
