Varistor Products

©2010 Littelfuse, Inc.

Revision: December 16, 2010

MLA Automotive Varistor Series

Surface Mount Multilayer Varistors (MLVs) > MLA Automotive Series

Specifications are subject to change without notice.

Please refer to www.littelfuse.com/series/ML.html or MLA.html for current information.

Peak Current and Energy Derating Curve

When transients occur in rapid succession, the average

power dissipation is the energy (watt-seconds) per pulse

times the number of pulses per second. The power so

developed must be within the specifications shown

temperature, the peak surge current and energy ratings

must be derated as shown below.

100

80

60

40

20

0

-55

50

60

70

80

90

100

110

120

130

140 150

T1

T2

100

50

0

O1

TIME

T

Peak Pulse Current Test Waveform for Clamping Voltage

0

1

T

1

T

Example

μ

μs = T

1

20

μs = T

Figure 1

Figure 2