Metal-OxideVaristors (MOVs)
Radial Leaded Varistors > AUMOV® Varistor Series
AUMOV® Varistor Series
RoHS
Description
Silicone Coated
Phenolic Coated
The Littelfuse AUMOV® Varistor Series of low voltage, high
surge current, radial leaded varistors provides an ideal circuit
protection for load dump, jump start voltage transient condi-
tions specifically for automotive applications.
The maximum peak surge current rating is rated up to 5kA
(8/20 μs pulse) to protect sensitive infotainment systems
from voltage transients. This AEC-Q200 (Table 10) quali-
fied series is available in five disc sizes: 5mm, 7mm, 10mm,
14mm and 20mm; it features a wide VDC voltage range from
16V to 825V.
Features
Agency Approvals
• Breakthrough in low
voltage varistor design
provides high peak
• Wide operating voltage
range: 14VAC to 625VAC
and 16VDC to 825VDC
• Five disc sizes available:
5, 7, 10, 14, and 20mm
• High resistance to
thermal cycles for
phenolic coating
• High energy absorption
particularly for automotive
load dump and jump start
Agency
Agency File Number
surge current rating
• Phenolic and Silicone
coating meet the
E320116 (only 14VAC to 42VAC for Epoxy coated)
Note: All Phenolic coating parts and Silicone coating parts are qualified to AEC-Q200 (Table
10).
stringent quality
requirements of
AEC-Q200 (Table 10)
Additional Information
• Reduced footprint and
volume required for
surge protection
• Lead–free, Halogen-Free
and RoHS compliant
• Silicone coating
• Optional phenolic coating
for higher operating
Datasheet
ꢀesoꢁrꢂes
ꢀaꢁꢂles
temperature up to 125ºC
option: High operating
temperature combined
with high isolation voltage
capability: 125°C and
2500V, respectively
• High peak surge
current rating up to
5kA (8/20 μs pulse)
Applications
• Body Electronics Systems • Automotive Control
• Powertrain Systems
• Infotainment Systems
Module Protection
• Motor or inductive load
transient suppression
Absolute Maximum Ratings
• For ratings of individual members of a series, see Device Ratings and Specifications chart
Low Voltage Series
Units
Continous:
Steady State Applied Voltage:
AC Voltage Range (VM(AC)RMS
)
14 to 625
16 to 825
V
V
DC Voltage Range (VM(DC)
)
Transient:
Non-Repetitive Surge Current, 8/20µs Waveform (ITM
Non-Repetitive Energy Capability, 2ms Waveform (WTM
Operating Ambient Temperature Range (TA) for Epoxy coated
)
400 to 5,000
A
J
)
1.0 to 140
-40 to +85
-40 to +125
-40 to +125
-40 to +150
< 0.01%
2500
°C
Operating Ambient Temperature Range (TA) for Phenolic coated and Silicone coated
Storage Temperature Range (TSTG) for Epoxy coated
°C
°C
Storage Temperature Range (TSTG) for Phenolic coated and Silicone coated
Temperature Coefficient (αV) of Clamping Voltage (VC) at Specified Test Current
Hi-Pot Encapsulation (Isolation Voltage Capability) for Epoxy coated
Hi-Pot Encapsulation (Isolation Voltage Capability) for Phenolic coated
Hi-Pot Encapsulation (Isolation Voltage Capability) for Silicone coated
Temperature Cycling (-40C to +125C) for Epoxy coated
°C
°C
V
500
V
2500
V
5
Cycles
Cycles
Temperature Cycling (-40C to +125C) for Phenolic and Silicone coated
1000
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of
the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 08/01/18