046406.3 - 464 Series

Series: 464
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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 Surface Mount Nano2 250V UMF product family comlies with IEC Publication IEC 60127-4-Universal Modular Fuse-Links [UMF]. This IEC standard has been accepted by UL/CSA making it the first global fuse standard.
  • The Nano2 250V UMF fuse family is based on the proven NANO2 fuse product technology.
  • Product is marked on top surface with current rating, voltage rating, breaking capacity symbol, time/current characteristic symbol, UMF distinctive symbol and the Littelfuse trademark.
  • Product is compatible with lead free solders and higher temperature profiles.
Property (Mouseover for details) Value
Body Ceramic
Nominal Melting I2T (A2sec) 35.912
Moisture Sensitivity Level Level 1
Nominal Cold Resistance (Ohms) 0.0093
Opening Fast-Acting (F)
VAC (V) 250
Partner ECAD Models 046406.3
Operating Temperature -55° to 125°C

Littelfuse_Phils_ISO9001_102407icon 2022-06-17_ISO 9001 2015_LF Phils

PhilsISO14001Certificateicon 2022-04-19_ISO 14001-2015_LF Phils

UMFicon UL_JGFI_E184655

METIicon UL_NBK101105_E184655

046406.3 ECAD Models

pdficon Fuse 464 Datasheet

The Surface Mount Nano2 250V UMF product family complies with IEC Publication IEC60127-4-Universal Modular Fuse-Links [UMF]...

tc-icon 464 Series TC Curve

pdficon Fuse Accessories Selection Guide

A quick reference guide to selecting holders blocks and clips for fuse applications...

pdficon Fuse Selection Guide

A quick reference guide to selecting fuses for electronic applications...

pdficon Product Selection Guide

Electronics Circuit Protection Product Selection Guide - A guide to selecting Littelfuse circuit protection components for electronic applications...

pdficon Circuit Protection Technology Application Matrix

Littelfuse is the world leader in the design and manufacturing of fuses for the automotive industrial handheld computer and telecom markets...

Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
046406.3DR FUSE 250V FA NANO2 UMF RoHS 6.3A RoHS No 02/20/2002 PbFree No CoC_RoHS9_046406.3DR REACH201_Declaration_with_Pb_046406.3DR
Contains IPC_046406.3DR
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