FUJI Ceramic Surge Absorbers
Z-TRAP
ENF series 220 to 680V (Varistor voltage)
Transient V-I characteristic curves
5000
4000
3000
(ENF511D10A to ENF681D10A)
Max. idle current
Max. clamping voltage
2000
ENF681D10A
ENF621D10A
Voltage [V]
ENF511D10A
1000
900
800
700
600
500
400
300
ENF511D10A
ENF621D10A
ENF681D10A
200
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
3
2500
Current [A]
Transient V-I characteristic curves
2000
(ENF221D14A to ENF471D14A)
Max. idle current
Max. clamping voltage
ENF471D14A
1000
900
800
700
600
500
400
Voltage [V]
300
200
14A
471D
ENF
ENF271D14A
ENF241D14A
ENF221D14A
14A
271D
ENF
14A
241D
ENF
14A
221D
ENF
100
90
80
70
60
50
40
-6
10
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
3
5500
Current [A]
Transient V-I characteristic curves
5000
4000
3000
2000
ENF681D14A
ENF621D14A
ENF511D14A
(ENF511D14A to ENF681D14A)
Max. idle current
Max. clamping voltage
Voltage [V]
1000
900
800
700
600
500
400
300
200
-6
10
EN
F 68
1D 1
4A
4A
4A
1D1
EN
F 62
EN
F 51
1D 1
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
10
2
10
3
4500
Current[A]
3