***********************************************************************
***********           PANJIT International Inc.             ***********
***********************************************************************
*Dec 07, 2018                                                         *
*                                                                     *
*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-B5V1S A K
.param
+vc0 = 3.873e-11	vc1 = 5.316e-11		vc2 = 1.807e-11		vc3 = 3.7e0
+tc1 = 1.351e-2		tc2 = 5.763e-3		tc3 = 3.351e-3		tc4 = 2.763e-3
d1 A K zener
g1 K A value = {(vc0+vc1*v(K,A))*(1.0+tc1*(temp-25)*exp(tc2*(temp-25)))+(vc2*exp(vc3*v(K,A)))*(1.0+tc3*(temp-25)*exp(tc4*(temp-25)))}
.model zener d
***** flag parameter ***
+level = 1   
***** dc model parameter ***
+ is = 9.297e-16	   n = 1.036		  rs = 4.623e-1		ikf = 1.302e-1
+ibv = 5e-3		 nbv = .8		  bv = 5.1
***** capacitance parameter ***
+cjo = 4.588e-11	   m = 3.294e-1	 	  vj = 5.338e-1
+ fc = 0.5                      
***** temperature coefficient ***
+tnom = 25		  eg = 1.128		 xti = 3
+trs1 = 8.859e-4	trs2 = 7.533e-6		tbv1 = 2.456e-5		tbv2 = -4.152e-8		tikf = 8.073e-3
.ends BZT52-B5V1S
*$
