***********************************************************************
***********           PANJIT International Inc.             ***********
***********************************************************************
*Sep 14, 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 1SMA4745 A K 
.param
+vc0 = 1.046e-13	 vc1 = 1.316e-12		 vc2 = 2.073e-11		vc3 = 2.075e-1
+tc1 = 7.031e-3		 tc2 = 2.205e-2
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 = 1.525e-15	   n = 1.013		  rs = 2.467e-2
+ibv = 15.5e-3		 nbv = 1.0		  bv = 16
+ikf = 2.4
***** capacitance parameter *****
+cjo = 2.637e-10	   m = 3.265e-1		  vj = 5.576e-1 
+ fc = 0.5
***** temperature coefficient *****
+tnom = 25		  eg = 1.150		 xti = 3
+trs1 = 1.005e-3	tbv1 = 7.521e-4		tikf = -1e-4
.ends 1SMA4745
*$
