V131DA40_09 Datasheet, PDF (3/4 Pages) Littelfuse – Industrial High Energy Terminal Varistors

Varistor Products
Industrial High Energy Terminal Varistors > DA/DB Series
Maximum Clamping Voltage
V131DA40 - V751DA40 and V131DB40 - V751DB40
6,000
5,000
4,000
3,000
MAXIMUM CLAMPING VOLTAGE
T_A = -55^oC to 85 ^oC
DISC SIZE 40mm
130 TO 750 VM(AC) RATING
V751DA/DB40
V661DA/DB40
V511D A/DB40
V571DA/DB40
V481DA/DB40
2,000 _V421DA/DB40
1,000
900
800
700
600
500
400
V151DA/DB40
300
V321DA/DB40
V271DA/DB40
V131DA/DB40
V251DA/DB40
200
10^-2
10^-1
10⁰
10¹
10²
10³
10⁴
10⁵
Figure 3
PEAK AMPERES (A)
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.
Physical Specifications
Lead Material
DA - Copper, Tin–plated
DB - Brass, Tin–plated
Insulating Material
Cured, flame retardant epoxy polymer
meets UL94V–0 requirements.
Device Labeling
Marked with LF, part number and date
code
Repetitive Surge Capability
V131DA40 - V751DA40 and V131DB40 - V751DB40
50,000
1
20,000
2
10
10,000
5,000 ₁₀₂
2,000 ₁₀₃
1,000
DISC SIZE 40mm
V131DA40 - V751DA40
V131DB40 - V751DB40
10
4
10⁵₁₀₆
500
200
100
50
20 INDEFINITE
10
20
Figure 4
100
1,000
IMPULSE DURATION ( μs)
10,000
Environmental Specifications
Operating/Storage
Temperature
Humidity Aging
Thermal Shock
Solvent Resistance
-55°C to +85°C/ -55°C to
+125°C
+85°C, 85% RH, 1000 hours
+/- 5% typical resistance
change
+85°C to -40°C 10 times
+/- 5% typical resistance
change
MIL–STD–202, Method 215F
Moisture Sensitivity
Level 1, J–STD–020C
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/da or /db.html for current information.
Revision: October 29, 2009
DA/DB Varistor Series