Varistor products, Maximum clamping voltage for 22mm parts, Repetitive surge capability for 22mm parts – Littelfuse RA Varistor Series User Manual
Page 6
© 2013 Littelfuse, Inc.
198
Revised: May 8, 2013
Varistor Products
RA Varistor Series
Low Profile / Application Specific Varistors > RA Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/ra.html for current information.
NOTE: If pulse ratings are exceeded, a shift of
V
N(DC) (at specified current) of more than
±10% could result. This type of shift, which normally results in a decrease of
V
N(DC)
, may
result in the device not meeting the original published specifications, but it does not prevent
the device from continuing to function, and to provide ample protection.
Maximum Clamping Voltage for 22mm Parts
MAXIMUM PEAK
V
O
L
TS (V)
PEAK AMPERES (A)
10
-2
10
-1
10
0
10
1
10
2
10
3
10
-3
4,000
3,000
2,000
1,000
900
800
700
600
500
400
300
200
100
10
4
MAXIMUM CLAMPING VOLTAGE
200 TO 430V
N(DC)
RATING
T
A
= -55
o
C TO 125
o
C
V430RA22
V390RA22
V270RA22
V240RA22
V200RA22
300
200
100
90
80
70
60
50
40
30
20
MAXIMUM PEAK
V
O
L
TS (V)
PEAK AMPERES (A)
10
-2
10
-1
10
0
10
1
10
2
10
3
10
-3
10
4
V36RA22
V24RA22
MAXIMUM CLAMPING VOLTAGE
24 TO 36V
N(DC)
RATING
T
A
= -55
o
C TO 125
o
C
Repetitive Surge Capability for 22mm Parts
2,000
200
100
50
20
10
5
2
500
20
100
1,000
10,000
IMPULSE DURATION
SURGE CURRENT (A)
1
2
10
V24RA22 - V36RA22
1,000
10
2
10
3
10
4
10
5
10
6
INDEFINITE
(μs)
10,000
2,000
200
100
50
20
10
5
2
500
20
100
1,000
10,000
IMPULSE DURATION
SURGE CURRENT (A)
1
2
10
4
10
5
10
6
V200RA22 - V430RA22
10
3
INDEFINITE
1,000
10
2
10
5,000
1
(μs)
V24RA22 - V36RA22
V200RA22 - V430RA22
V24RA22 - V36RA22
V200RA22 - V430RA22
Figure 12
Figure 14
Figure 13
Figure 15