V131DA40 Datasheet, PDF (4/4 Pages) Littelfuse – Varistor Products - High Energy Industrial

Varistor Products
High Energy Industrial
DA/DB Varistor Series
Pulse Rating Curves
50,000
1
20,000
10,000
2
10
DISC SIZE 40mm
V131DA40 - V751DA40
V131DB40 - V751DB40
5,000 ₁₀₂
10⁴₁₀₅₁₀₆
2
2,000 ₁₀₃
1,000
500
200
100
50
20 INDEFINITE
10
20
100
1,000
IMPULSE DURATION ( µs)
10,000
FIGURE 5. SURGE CURRENT RATING CURVES FOR
V131DA40, V131DB40 - V751DA40, V751DB40
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 ample protection.
Mechanical Dimensions
DA SERIES
“A”DIMENSION:
FILISTER HEAD SCREW - 51mm (2.01)
PAN HEAD SCREW - 53mm (2.09)
A
4.3mm
(0.170)
15mm (0.59)
23mm ± 1mm
(0.90 ± 0.04)
M4 INTERNATIONAL
THREAD
67mm
(2.64)
57mm
(2.24)
62mm
(2.44)
4.5mm (0.18)
Dimensions in millimeters and (inches).
DB SERIES
60.3
(2.37)
44.45 ± 0.75
(1.75 ± 0.03)
ALL DIMENSIONS ARE MAXIMUM
EXCEPT WHERE NOTED
46.8
(1.84)
25.4 ± 0.75
(1.00 ± 0.03)
HOLES 0.23 THRU
BORE 0.370 x 0.370 DP
1.6
(0.06)
40.5
(1.6)
23
(0.90)
12.7
(0.50)
2 HOLES
6.60
(0.26)
41
(1.61)
12.7
(0.50)
6.60
(0.26)
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