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EC635

Part Number	EC635
Manufacturer	Littelfuse
Description	Designing with thermally protected TMOV Varistors in TVSS Applications
Published	Apr 1, 2005
Detailed Description	NOTES Designing with thermally protected TMOV Varistors in TVSS Applications Introduction Metal Oxide Varistors (MOVs) a...
Datasheet	EC635 PDF File

Overview

NOTES Designing with thermally protected TMOV Varistors in TVSS Applications Introduction Metal Oxide Varistors (MOVs) are commonly used to suppress transients in many applications such as: Transient Voltage Surge Suppressors (TVSS), Uninterruptible Power Supplies (UPS), AC Power Taps, AC Power Meters or other products.
Lightning, inductive load switching, or capacitor bank switching, are often the sources of these over-voltage transients.
Under normal operating conditions, the AC line voltage applied to an MOV is not expected to exceed the MOV’s Maximum ACRMS Voltage Rating or Maximum Continuous Operating Voltage (MCOV).
Occasionally, over-voltage transients may occur that exceeds these lim...

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