***********************************************************************
***********           PANJIT International Inc.             ***********
***********************************************************************
*Aug 24, 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 1SMA4739 A K 
.param
+vc0 = 1.746e-12	 vc1 = 2.116e-11	 vc2 = 3.373e-11		vc3 = 6.475e-1
+tc1 = 1.751e-2		 tc2 = 1.871e-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 = 3.291e-15	   n = 1.020		  rs = 1.676e-2
+ibv = 28e-3		 nbv = 1.0		  bv = 9.105
+ikf = 5.9
***** capacitance parameter *****
+cjo = 5.962e-10	   m = 3.286e-1		  vj = 5.865e-1 
+ fc = 0.5
***** temperature coefficient *****
+tnom = 25		  eg = 1.150		 xti = 3
+trs1 = 1.025e-3	tbv1 = 5.908e-4		tikf = -1e-3
.ends 1SMA4739
*$
