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*Varistor PSpice Model Netlist*
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*
* © 	Littelfuse Inc.
*	11th March 2004
*	version 4.0
*
* Representing typical characteristics for the following DA/DB-Series varistors: 
*
* V131DA40
* V151DA40
* V251DA40
* V271DA40
* V321DA40
* V421DA40
* V481DA40
* V511DA40
* V571DA40
* V661DA40
* V751DA40
*
.SUBCKT DAMOV  1 2 PARAMS: T=1 C=1pF L=1nH a1=1 a2=0 a3=0 a4=0 a5=0 a6=100u a7=100u
E_non_lin	3 1 	VALUE {T*(
+ 			a1+a2*(log10(limit(v(4),a7,1g))-3)
+			+a3*2^(-log10(limit(v(4),a7,1g))+3)
+			+a4*exp(-log10(limit(v(4),a7,1g))+3)
+ 			+a5*exp(log10(limit(v(4),a7,1g))-3)
+ 			-(a1+a2*(log10(-limit(v(4),-1g,-a7))-3)
+			+a3*2^(-log10(-limit(v(4),-1g,-a7))+3)
+			+a4*exp(-log10(-limit(v(4),-1g,-a7))+3)
+ 			+a5*exp(log10(-limit(v(4),-1g,-a7))-3))
+ 			+limit(v(4)/a7*v(8),-v(8),v(8)))}
L_series	5 6  {L}  
H_H1		4 0  VH_H1 1k
VH_H1		5 7 0V
R_R2		0 4  1G  
R_series	6 2  {a6}  
V_V1		3 7  0V
E_x_zero	8 0 	VALUE {a1+a2*(log10(a7/1e3))+a3*2^(-log10(a7/1e3))
+			+a4*exp(-log10(a7/1e3))+a5*exp(log10(a7/1e3))}
R_x_zero	8 0  1G
C_parallel	1 5 {C}
.ENDS
*
.SUBCKT V131DA40 1 2 PARAMS: TOL=0
X1	1 2	DAMOV PARAMS: T={1+TOL/100} L=20nH C=10nF a1=250.3 a2=9.855 a3=-3.115 a4=0.2016 a5=3.161 a6=2.405E-3
.ENDS
*
.SUBCKT V151DA40 1 2 PARAMS: TOL=0
X1	1 2	DAMOV PARAMS: T={1+TOL/100} L=20nH C=8nF a1=300.3 a2=11.83 a3=-3.737 a4=0.242 a5=3.793 a6=2.886E-3
.ENDS
*
.SUBCKT V251DA40 1 2 PARAMS: TOL=0
X1	1 2	DAMOV PARAMS: T={1+TOL/100} L=20nH C=5nF a1=488 a2=19.22 a3=-6.073 a4=0.3932 a5=6.163 a6=4.689E-3
.ENDS
*
.SUBCKT V271DA40 1 2 PARAMS: TOL=0
X1	1 2	DAMOV PARAMS: T={1+TOL/100} L=20nH C=4.5nF a1=538.1 a2=21.19 a3=-6.696 a4=0.4335 a5=6.795 a6=5.17E-3
.ENDS
*
.SUBCKT V321DA40 1 2 PARAMS: TOL=0
X1	1 2	DAMOV PARAMS: T={1+TOL/100} L=20nH C=3.8nF a1=638.2 a2=25.13 a3=-7.942 a4=0.5142 a5=8.059 a6=6.132E-3
.ENDS
*
.SUBCKT V421DA40 1 2 PARAMS: TOL=0
X1	1 2	DAMOV PARAMS: T={1+TOL/100} L=20nH C=3nF a1=850.9 a2=33.51 a3=-10.59 a4=0.6855 a5=10.75 a6=8.176E-3
.ENDS
*
.SUBCKT V481DA40 1 2 PARAMS: TOL=0
X1	1 2	DAMOV PARAMS: T={1+TOL/100} L=20nH C=2.7nF a1=938.5 a2=36.95 a3=-11.68 a4=0.7561 a5=11.85 a6=9.018E-3
.ENDS
*
.SUBCKT V511DA40 1 2 PARAMS: TOL=0
X1	1 2	DAMOV PARAMS: T={1+TOL/100} L=20nH C=2.5nF a1=1026 a2=40.4 a3=-12.77 a4=0.8267 a5=12.96 a6=9.859E-3
.ENDS
*
.SUBCKT V571DA40 1 2 PARAMS: TOL=0
X1	1 2	DAMOV PARAMS: T={1+TOL/100} L=20nH C=2.2nF a1=1139 a2=44.84 a3=-14.17 a4=0.9174 a5=14.38 a6=10.94E-3
.ENDS
*
.SUBCKT V661DA40 1 2 PARAMS: TOL=0
X1	1 2	DAMOV PARAMS: T={1+TOL/100} L=20nH C=2nF a1=1314 a2=51.74 a3=-16.35 a4=1.059 a5=16.59 a6=12.62E-3
.ENDS
*
.SUBCKT V751DA40 1 2 PARAMS: TOL=0
X1	1 2	DAMOV PARAMS: T={1+TOL/100} L=20nH C=1.8nF a1=1502 a2=59.13 a3=-18.69 a4=1.21 a5=18.96 a6=14.43E-3
.ENDS
*