485002 - 485 Series

Series: 485 Questions? Contact Littelfuse Support
Littelfuse 485 fuse
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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.

Surface mountable Nano2® 485 Series Fuse combines exceptional overcurrent protection for high voltage DC circuits with a space-saving footprint.

The Nano2® 485 Series Fuse from Littelfuse is a compact,  surface mountable 600VDC fuse for overcurrent protection of high voltage DC circuits. The 485 Series Fuse packs a high voltage and energy protection of high voltage DC circuits. The 485 Series Fuse packs a high voltage and energy protection capability in a very small footprint. It provides fast-acting blow characteristics to ensure high-speed protection against surge currents and overload conditions. A ceramic housing ensures robust operation and long-term reliability, even in high ambient operating temperatures. The 485 Series Fuse offers circuit designers a more compact, more cost-competitive alternative to traditional larger, through-hole-type 600VDC fuses for creating cost-effective designs in accordance with the industry trend for surface mount designs.


  • Surface mount packaging simplifies mounting Fuse on PCBs
  • High interrupting current rating at 100A@600V in a small footprint (12.1mm x 4.5mm x 4.5mm) for  limited board space applications
  • Wide operating temperature range (-55°C to 125°C) and ceramic housing ensure reliability in high-temperature environments
  • 100% RoHS compliant and halogen free design for compliance with international environmental standards
  • Suitable for leaded or lead-free reflow soldering
  • UL/CSA Agency approvals


  • High end PC servers
  • Telecom power distribution systems
  • LCD/PDP TV inverter boards DC input protection
  • Computer peripherals
  • Uninterruptible power supply (UPS) systems
  • 3-phase power supplies
  • 380VDC server/lighting in data center

csa CSA 1422-30 029862

UR UR_JDYX2_E10480_9_30_14


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    HalogenFree5/23/2012 PbFree6/18/2015 RoHS5/23/2012