V130LA1P Datasheet, PDF (4/13 Pages) Littelfuse – Varistor Products - Line Voltage Operation, Radial Lead

Varistor Products
Radial Lead Varistors > LA Series
Current Energy and Power Dissipation Ratings
Should transients occur in rapid succession, the average
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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
Figure 1A - Power Derating for Epoxy Coated
100
90
80
70
60
50
40
30
20
10
0
-55 50 60 70 80 90 100 110 120 130 140 150
AMBIENTTEMPERATURE ( ^oC)
device. The operating values of a MOV need to be derated
at high temperatures as shown above. Because varistors
only dissipate a relatively small amount of average power
they are not suitable for repetitive applications that involve
substantial amounts of average power dissipation.
Figure 1B - Power Derating for Phenolic Coated
100
90
80
70
60
50
40
30
20
10
0
-55 50 60 70 80 90 100 110 120 130 140 150
AMBIENTTEMPERATURE ( ^oC)
Peak Pulse Current Test Waveform
100
90
50
10
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Figure 2
T
T₁
T₂
TIME
0₁

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5


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PG
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T₁

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Y
5
T₂

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Example 
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μs Current Waveform:
8μT

5₁

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20μT

5₂

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LA Varistor Series
Revision: February 9, 2012
©2012 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/la.html for current information.