Version 4
SHEET 1 1636 680
WIRE -16 -96 -432 -96
WIRE 96 -96 -16 -96
WIRE -16 -64 -16 -96
WIRE -432 -48 -432 -96
WIRE -16 48 -16 16
WIRE 96 48 -16 48
WIRE -432 64 -432 32
WIRE -16 80 -16 48
WIRE -288 144 -432 144
WIRE -176 144 -288 144
WIRE -64 144 -96 144
WIRE -432 176 -432 144
WIRE -432 288 -432 256
WIRE -16 288 -16 144
WIRE -16 288 -432 288
WIRE -432 304 -432 288
FLAG -432 64 0
FLAG 96 -96 A
FLAG 96 48 B
FLAG -432 304 0
FLAG -288 144 C
SYMBOL voltage -432 -64 R0
WINDOW 0 10 -1 Left 0
WINDOW 3 9 103 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value SINE(0 50 50)
SYMBOL res -32 -80 R0
WINDOW 0 36 23 Left 0
WINDOW 3 45 83 Left 0
SYMATTR InstName Rload
SYMATTR Value 200
SYMBOL Misc\\SCR -32 80 R0
SYMATTR InstName U2
SYMATTR Value MCR08MT1
SYMBOL voltage -432 160 R0
WINDOW 0 10 -1 Left 0
WINDOW 3 9 103 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value PULSE(0 5 4m 0.1u 0.1u .1m 20m)
SYMBOL res -192 160 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R1
SYMATTR Value 4.7k
TEXT -440 -176 Left 0 !.tran 0 .1 0 1m
TEXT -440 -216 Left 0 !.include MCR08MT1.LIB
TEXT -440 -144 Left 0 !.options plotwinsize=0
TEXT -136 -224 Left 0 ;http://www.onsemi.com/pub/Collateral/MCR08BT1-D.PDF\nhttp://www.onsemi.com/pub/Collateral/MCR08MT1.LIB\nhttp://www.littelfuse.com/data/en/Data_Sheets/E5SensitiveSCR.pdf\nhttp://www.littelfuse.com/data/en/PSPICE_Models/libscr.zip