Version 4
SHEET 1 880 680
WIRE 192 32 -176 32
WIRE 192 64 192 32
WIRE -176 128 -176 32
WIRE -16 160 -64 160
WIRE 192 160 192 144
WIRE 192 160 64 160
WIRE 288 160 192 160
WIRE 192 176 192 160
WIRE -176 272 -176 208
WIRE -64 272 -64 160
WIRE 192 272 192 240
FLAG 192 272 0
FLAG -176 272 0
FLAG -64 272 0
FLAG 288 160 Uz
SYMBOL res 176 48 R0
SYMATTR InstName R1
SYMATTR Value 1.8k
SYMBOL zener 208 240 R180
WINDOW 0 24 64 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName D1
SYMATTR Value BZX84C6V2L
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL voltage -176 112 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 24
SYMBOL current -16 160 R270
WINDOW 0 32 40 VTop 2
WINDOW 3 -32 40 VBottom 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName I1
SYMATTR Value 0.4m
TEXT -210 296 Left 2 !.tran 1