Version 4
SHEET 1 1820 1636
WIRE 896 912 896 848
WIRE 896 848 704 848
WIRE 624 848 592 848
WIRE 592 848 592 912
WIRE 592 992 592 1040
WIRE 592 1072 592 1040
WIRE 592 1040 896 1040
WIRE 896 848 912 848
WIRE 912 848 928 848
WIRE 896 1040 896 992
WIRE 880 1440 880 1376
WIRE 880 1376 688 1376
WIRE 608 1376 576 1376
WIRE 576 1616 576 1584
WIRE 576 1584 720 1584
WIRE 880 1376 896 1376
WIRE 896 1376 912 1376
WIRE 880 1584 880 1504
WIRE 864 1488 848 1488
WIRE 848 1488 848 1504
WIRE 864 1456 720 1456
WIRE 720 1472 720 1456
WIRE 720 1552 720 1584
WIRE 720 1584 880 1584
FLAG 592 1072 GND
FLAG 912 848 var1
FLAG 576 1616 GND
FLAG 896 1376 var_lt
FLAG 592 848 v0
FLAG 576 1376 v0
FLAG 848 1504 0
SYMBOL VOLTAGE 592 896 R0
WINDOW 3 19 99 Left 0
SYMATTR Value 300
SYMATTR InstName V1
SYMATTR SpiceLine Rser=1u
SYMATTR Value2 AC Rser 1u
SYMBOL RES 608 864 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R1
SYMATTR Value 1m
SYMBOL xvaristor 880 896 R0
SYMATTR InstName VAR1
SYMATTR SpiceModel S20K115
SYMATTR Value ""
SYMBOL RES 592 1392 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R2
SYMATTR Value 1m
SYMBOL SpecialFunctions\\varistor 896 1408 R0
WINDOW 3 0 60 Left 0
SYMATTR Value Rclamp=0.1
SYMATTR InstName A1
SYMBOL voltage 720 1456 R0
SYMATTR InstName V2
SYMATTR Value 180
TEXT 528 664 Left 0 !.dc v1 -300 300 1
TEXT 520 400 Left 0 ;VARISTOR SIMULATION WITH (P)SPICE LIBRARY FILE FROM EPCOS\n \nReplace the value S20K115 by any type you want from the library SIOV.LIB  .
TEXT 920 1016 Left 0 ;S20K115: 1mA@180V, 100A@300Vmax  C=1520pF
TEXT 920 1512 Left 0 ;I=0@V<180V
TEXT 600 1272 Left 0 ;The LTSPICE built-in varistor
TEXT 520 520 Left 0 ;Plot I(R1) and I(R2) to see the difference between the models.
TEXT 608 768 Left 0 ;The EPCOS varistor model