V10E440 - UltraMOV Series

Series: UltraMOV
Replaced By: V10E440P
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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

The UltraMOV Metal Oxide Varistor Series is designed for applications reqiring high peak surge current ratings and high energy absorption capability. UltraMOV varistors are primarily intended for use in AC Line Voltage applications such as Transient Voltage Surge Suppressors (TVSS), Uninterruptable Power Supplies (UPS), AC Power Taps, AC Power Meters, or other products that require voltage clamping of high transient surge currents from sources such as lightning, inductive load switching, or capacitor bank switching.
  • These devices are produced in radial lead package sizes of 7, 10, 14, and 20mm and offered in a variety of lead forms.
  • UltraMOVs are manufactured with recognized epoxy encapsulation and are rated for ambient temperatures up to 85°C with no derating.
  • This Series is LASER-branded and is supplied in bulk, ammo pack (fan-fold), or tape and reel packaging.

Application Spotlight


Property (Mouseover for details) Value
VMAX AC (V) 440
Max Rated DC Voltage 585
Surge Energy (WTM) (J) 85
Peak Pulse Current (ITM) 1xAmps (A) 3500
Peak Pulse Current (ITM) 2xAmps (A) 2500
VNDC MIN (V) 643
VNDC MAX (V) 787
Max Clamp Voltage (Vc) (V) 1180
Clamp Polarity Bi-directional
Typ Capacitance (pF) 130
Partner ECAD Models V10E440
Replaced By Part Number V10E440P

Littelfuse_Dongguan BeiCe MOV_ISO TS16949icon Littelfuse_Dongguan_IATF16949_October-2020

Littelfuse_Dongguan BeiCe MOV_ISO14001 2004icon Dongguan ISO14001 2015_June 29 2020

MOV Factory
Littelfuse_Dongguan BeiCe MOV_ISO9001 2000icon Littelfuse Dongguan_ISO9001 2015_October-2020

MOV/MLV Factory
V10E440 ECAD Models

CSAicon CSA_2221_01_091788_2_7_13

VDERicon VDE_116895

IECEXicon BSI_IECQ_E1273_Fissue20

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