135
www.littelfuse.com
Varistor Products
2
V
P
Base Mount
PA Varistor Series
Pulse Rating Curves
10,000
1
5,000
Mechanical Dimensions
FIGURE 5. SURGE CURRENT RATING CURVES FOR
V130PA20A - V320PA40C
FIGURE 6. SURGE CURRENT RATING CURVES FOR
V420PA40A - V660PA100C
2,000
200
100
50
20
10
5
2
1
500
20
100
1,000
10,000
IMPULSE DURATION (
μ
s)
S
2
10
4
10
5
10
6
DISC SIZE 20mm
V130PA20A - V320PA40C
10
2
10
3
INDEFINITE
1,000
10
10,000
5,000
2,000
200
100
50
20
10
5
2
1
500
20
100
1,000
10,000
IMPULSE DURATION (
μ
s)
S
1
2
10
4
10
5
10
6
DISC SIZE 20mm
V420PA40A - V660PA100C
10
2
10
3
INDEFINITE
1,000
10
NOTE: If pulse ratings are exceeded, a shift of VN(DC)(at specified current) of more than ±10% could result.This type of shift, which normally results in a decrease of VN(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 transient protection
NOTES:
1. Tab is designed to fit 1/4” quick-connect terminal.
2. Case temperature is measured at T
C
on top surface of base
plate.
3. H
1
(130-150V
RMS
devices).
H
2
(250-320V
RMS
devices).
H
3
(420-660V
RMS
devices).
4. Electrical connection: top terminal and base plate.
5. Typical weight: 30g.
D
Q
S
F
C
B
P
2 HOLES
D
1
T
T
C
H
1, 2, 3
J
h
E
b
b
3
T
TAB
b
2
A
SEATING
PLANE
SYM-
BOL
MILLIMETERS
INCHES
NOTES
MIN
NOM
MAX
MIN
NOM
MAX
A
-
-
14.3
-
-
0.570
-
b
-
-
6.6
-
-
0.260
1
b2
3.94
4.06
4.18 0.155
0.160
0.165
-
b3
3.05
3.17
3.29 0.120
0.125
0.130
-
B
-
-
12.9
-
-
0.510
-
C
-
-
6.6
-
-
0.260
-
D
-
-
66.3
-
-
2.610
-
D1
-
-
33.5
-
-
1.320
-
E
-
11.2
-
-
0.440
-
-
F
7.50
7.62
7.75 0.295
0.300
0.305
-
h
-
0.8
1.0
-
0.030
0.040
-
H
1
-
-
25.6
-
-
1.010
3
H
2
-
-
28.3
-
-
1.120
3
H
3
-
-
32.8
-
-
1.290
3
J
-
-
8.1
-
-
0.320
-
P
5.6
-
6.0
0.220
-
0.240
-
Q
50.6
50.8
51.0
1.990
2.000
2.010
-
S
18.4
19.2
20.0
0.72
0.75
0.78
-
T
-
-
1.0
-
-
0.040
-
T
2.8
-
-
0.110
-
-
-
T
C
-
3.2
-
-
0.126
-
2