V511BA60 Littelfuse Inc, V511BA60 Datasheet - Page 3
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V511BA60
Manufacturer Part Number
V511BA60
Description
VARISTOR INDUST 510V 1800J BA
Manufacturer
Littelfuse Inc
Series
BAr
Type
MOVr
Specifications of V511BA60
Varistor Voltage
820V
Current-surge
70kA
Number Of Circuits
1
Maximum Ac Volts
510VAC
Maximum Dc Volts
675VDC
Energy
1800J
Package / Case
Chassis Mount
Voltage Rating Dc
675 V
Voltage Rating Ac
510 V
Clamping Voltage
1.3 KV
Peak Surge Current
70 KA
Surge Energy Rating
1800 J
Capacitance
5000 pF
Operating Temperature Range
- 55 C to + 85 C
Mounting
SMD/SMT
Dimensions
60 mm Dia. x 100 mm L
Termination Style
Screw
Brand/series
BA Series
Current, Peak
70000 A
Energy Rating
1800 Joules
Mounting Style
Bolt-Down
Package
Screw
Resistance, Insulation
1000 Megohms
Technology
Metal Oxide
Temperature, Operating, Maximum
85 °C
Temperature, Operating, Minimum
-55 °C
Terminal Type
Screw
Voltage, Ac
510 VAC
Voltage, Clamping
1300 V
Voltage, Dc
675 VDC
Voltage, Operating
575⁄730 VAC/VDC
Voltage, Varistor
910
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
BA/BB Varistor Series
Varistor Products
High Energy Industrial
Power Dissipation Ratings
Should transients occur in rapid succession, the average power dissipation
required is simply the energy (watt-seconds) per pulse times the number
of pulses per second. The power so developed must be within the
specifications shown on the Device Ratings and Characteristics table for
the specific device. Furthermore, the operating values need to be derated
at high temperatures as shown in Figure 1. Because varistors can only
dissipate a relatively small amount of average power they are, therefore,
not suitable for repetitive applications that involve substantial amounts of
average power dissipation.
Typical Performance Curves
FIGURE 3. STANDBY POWER DISSIPATION vs APPLIED
0.08
0.06
0.04
1.0
0.8
0.6
0.4
0.2
0.1
TYPICAL TEMPERATURE COEFFICIENT
OF POWER DISSIPATION = 2.2%/
MAX A T T
MAX A T T
TYP AT T
V
80
RMS
PERCENTAGE OF MAXIMUM RA TED V
AT VARIED TEMPERATURES
A
A
A
= 25
= 85
= 25
O
100
90
50
10
1
o
o
o
C
C
C
90
T
T
1
o
C
T
2
100
RMS
FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM
(%)
w w w . l i t t e l f u s e . c o m
TIME
110
Example: For an 8/20µs Current Waveform:
20µs = T
8µs = T
O
T
T
T = Time From 10% to 90% of Peak
1
1
2
FIGURE 4. TYPICAL STABILITY OF STANDBY POWER
100
= Virtual Origin of Wave
= Virtual Front Time = 1.25 • t
= Virtual Time to Half Value (Impulse Duration)
90
80
70
60
50
40
30
20
10
-55
0
0.5
0.4
0.3
0.2
0.1
2
1
0
= Virtual Time to Half Value
= Virtual Front Time
0
50
1,000 HOURS, T
DISSIPATION AT RATED V
60
70
AMBIENT TEMPERATURE (
TIME AT RATED V
80
A
10
= 85
90
o
C
100
RMS
RMS
110
(HOURS)
100
vs TIME
o
120
C)
130
140 150
1,000
83
2