Littelfuse HA Varistor Series - Manual (Page 4)

© 2013 Littelfuse, Inc. 164
Revised: May 8, 2013
Varistor Products
HA Varistor Series
Industrial High Energy Terminal Varistors > HA Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/ha.html for current information.
Repetitive Surge Capability for 32mm Parts
V111HA32 – V751HA32
DISC SIZE 32mm
V111HA32 - V751HA32
50,000
20,000
10,000
5,000
2,000
1,000
500
200
100
50
20
10
20 100 1,000 10,000
SURGE CURRENT (A)
IMPULSE DURATION ( μs)
10
2
1
INDEFINITE
10 2
10 3
10 4
10 5
10 6
Repetitive Surge Capability for 40mm Parts
V111HA40 – V751HA40
DISC SIZE 40mm
V111HA40 - V751HA40
50,000
20,000
10,000
5,000
2,000
1,000
500
200
100
50
20
10
20 100 1,000 10,000
SURGE CURRENT (A)
IMPULSE DURATION ( μs)
2
1
INDEFINITE
10 2
10 3
10 4
10 5
10 6
10
Operating/Storage
Temperature -55°C to +85°C/
-55°C to +125°C
Humidity Aging
+85°C, 85% RH, 1000 hours
+/- 10% typical resistance
change
Thermal Shock
+85°C to -40°C 5 times
+/- 10% typical resistance
change
Solvent Resistance MIL–STD–202, Method 215F
Moisture Sensitivity Level 1, J–STD–020C
Lead Material Tin–plated Copper
Soldering
Characteristics Solderability per MIL–STD–202,
Method 208E
Insulating Material
Cured, flame retardant epoxy polymer
meets UL94V–0 requirements.
Device Labeling LF, Part Number and date code
Physical Specifications Environmental Specifications
Wave Solder Profile
0
50
100
150
200
250
300
0 0.5 1 1.5 2 2.5 3 3.5 4
TIME(MINUTES)
T
E
M
P
E
RAT
URE
(
ºC)
Maximum Wave 240C
Lead–free Profile
0
50
100
150
200
250
300
0 0.5 1 1.5 2 2.5 3 3.5 4
TIME(MINUTES)
T
EMPER
A
T
U
R
E
(º
C
)
Maximum Wave 260C
Non Lead–free Profile
Figure 5 Figure 6
Figure 7 Figure 8