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***********           PANJIT International Inc.             ***********
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*Mar 08, 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-B5V1 A K 
.param
+vc0 = 6.846e-10	 vc1 = 3.716e-10	 vc2 = 6.903e-11	vc3 = 3.405e-0
+tc1 = 4.051e-3		 tc2 = 7.421e-3
d1 A K zener
g1 K A value = {(vc0+vc1*v(K,A)+vc2*exp(vc3*v(K,A)))*(1.0+tc1*(temp-25)*exp(tc2*(temp-25)))}
.model zener d
***** flag parameter *****
+level = 1 
***** dc model parameter *****
+ is = 2.202e-15	   n = 1.053		  rs = 4.495e-1
+ibv = 5e-3		 nbv = 1.0		  bv = 5.1
+ikf = 1.5e-1
***** capacitance parameter *****
+cjo = 1.296e-10	   m = 4.516e-1		  vj =1.164e-0 
+ fc = 0.5
***** temperature coefficient *****
+tnom = 25		  eg = 1.108		 xti = 3
+trs1 = 1.109e-3	tbv1 = 1.702e-4		tikf = 8e-3
.ends BZT52-B5V1
*$