V271HC40 Littelfuse Inc, V271HC40 Datasheet - Page 3

• Manufacturer Part Number: V271HC40
• Description: BULK / HC VARISTOR 40MM ROHS / LEAD FREE
• Manufacturer: Littelfuse Inc
• Series: HAr

Specifications of V271HC40

• Rohs Compliant: YES
• Varistor Voltage: 430V
• Current-surge: 40kA
• Number Of Circuits: 1
• Maximum Ac Volts: 275VAC
• Maximum Dc Volts: 369VDC
• Energy: 400J
• Package / Case: Disc 40mm with Screw Mounting
• Product: MOV
• Voltage Rating Dc: 369 V
• Voltage Rating Ac: 275 V
• Clamping Voltage: 690 V
• Peak Surge Current: 40 KA
• Capacitance: 4500 pF
• Operating Temperature Range: - 55 C to + 85 C
• Mounting: SMD/SMT
• Dimensions: 40 mm Dia.
• Termination Style: Through Hole
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

V111HA32–V751HA32
©2011 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/ha.html for current information.
Power Dissipation Ratings
Figure 1
Should transients occur in rapid succession, the average power
pulse times the number of pulses per second. The power
so developed must be within the specifications shown on
the Device Ratings and Specifications table for the specific
at high temperatures as shown in above. Because varistors
can only dissipate a relatively small amount of average power
they are, therefore, not suitable for repetitive applications that
involve substantial amounts for average power dissipation.
Maximum Clamping Voltage for 32mm Parts
Figure 3
10000
1000
100
0.001
100
Maximum Clamping Voltage
HA32 Series
110 to 750V AC Rating
90
80
70
60
50
40
30
20
10
0
-55
V351CA32
V271CA32
Current , Energy and Power De–Rating Curve
V321CA32
0.01
50
V331CA32
V251CA32
0.1
60
70
AMBIENT TEMPERATURE (
V301CA32
V201CA32
1
80
Current (A)
90
10
TA = -55 C to 85C
100
V181CA32
V511CA32
100
V551CA32
110
V151CA32
V661HA32
o
120
C)
1000
Varistor Products
Industrial High Energy Terminal Varistors > HA Series
V571CA32
V141CA32
130
V751CA32
10000
140
V131CA32
150
V681CA32
V481CA32
C111CA32
100000
V391CA32
V441CA32
V421CA32
Revision: February 21, 2011
V111HA40–V751HA40
Peak Pulse Current Test Waveform
Maximum Clamping Voltage for 40mm Parts
Figure 4
Figure 2
10000
1000
100
0.001
Maximum Clamping Voltage
0
T
T
Example
110 to 750V AC Rating
V111
1
1
2
V351
= Virtual Origin of Wave
= Rise Time = 1.25 x T
= Decay Time
0.01
O
HA40 Series
100
90
50
10
1
8μs = T
20μs = T
V131
V391
V141
0.1
V421
1
2
= Rise Time
V151
V441
= Decay Time
T
T
1
1
T
Current - (A)
2
μ
V481
10
V511
TA = -55 C to 85C
V551
100
V571
TIME
1000
V751
V181
HA Varistor Series
10000
V681
V201
V251
V661
100000
V301
V271
V321
V331