*********************************************************************** *********** PANJIT International Inc. *********** *********************************************************************** *Jan 17, 2025 * * * *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 SM8S24A-AU A K .param +vc0 = 1.577e-9 vc1 = 1.283e-10 vc2 = 1.000 vc3 = 2.335e-10 vc4 = 2.207e-1 +tc1 = 1.452e-2 tc2 = 2.272e-2 tc3 = 2.522e-2 tc4 =2.262e-2 .func irexp(v) {(vc0+vc1*v**vc2)*(1.0+tc1*(temp-25)*exp(tc2*(temp-25)))+(vc3*exp(vc4*v))*(1.0+tc3*(temp-25)*exp(tc4*(temp-25)))} .func rbv(i) {2.302e-2*min(i,0)} d1 A A1 zener g1 A1 A value = {irexp(v(A1,A))} v1 A1 K1 0 e1 K1 K value = {rbv(i(v1))} .model zener d ***** flag parameter ***** +level = 1 ***** dc model parameter ***** + is = 1.721e-12 n = 1.078 rs = 4.211e-3 +ibv = 5.0e-3 nbv = 1.000 bv = 28.1 +ikf = 1.403e+1 ***** capacitance parameter ***** +cjo = 1.266e-11 m = 3.319e-1 vj = 3.905e-1 + fc = 0.5 ***** temperature coefficient ***** +tnom = 25 eg = 1.050 xti = 3 +tikf = 6.000e-4 trs1 = 8.255e-4 +tbv1 =7.687e-4 tbv2 = -5.452e-7 .ends SM8S24A-AU *$