Varistors
by SEMIKRON 15-03-2004
Varistors
2005
SKVC 20 A 251
SKVC 20 A 460
SKVC 20 A 460C
1)
IEC standard current pulse waveform 8 x 20
s
2)
10
4
times during lifetime
3)
Once during lifetime
4)
T
case
85 C
Types
V
V
V
DC
V
DC
10 %
p
1, 2)
p
1, 3)
W
p
1, 3)
P
AV
V
pmax
(
p
1)
= ...)
w
max. max. (I
DC
= 1 mA)
max.
repetitive
max.
non-
repetitive
max.
max.
T
amb
70 C
(10 A) (100 A) (1000 A)
V
V
V
A
A
J
W
V
V
V
g
Plastic package, 1 varistor
SKVC 20 A 251
250
320
390 15 %
190
6500
140
0,8
4)
600
650
800
120
SKVC 20 A 460
460
615
750 15 %
190
6500
260
0,8
4)
1150
1270
1550
120
Plastic package, 1 varistor + 1 capacitor 0,1
F
SKVC 20 A 460C
460
615
750 15 %
190
6500
260
0,8
4)
1150
1270
1550
130
Fig. 1 Current / voltage characteristics (pulsed)
SKVC 20 A 251; SKVC 20 A 460
Fig. 2 Current / voltage characteristics (pulsed)
Dimensions in mm
^
^
^
V
isol
= 2500 V~
SKVC 20 A 460 C
V
isol
= 2500 V~