0466.375 - 466 Series

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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 466 Series Fast-Acting Surface Mount Fuse (SMF) is a small (1206 size) thin-film device designed for secondary protection of circuits used in space constrained applications such as hand-held portable electronic devices.

This series is 100% lead-free and meets the requirements of the RoHS directive. New Halogen-Free 466 Series fuses are available to order using the “HF” suffix.


  • Complies with electronic industry environmental standards for lead reduction.
  • Product is compatible with lead-free solders and higher temperature profiles.
  • Current ratings available up to 7A. If a 7A fuse is required please see the 429 series.
  • High performance materials provide improved performance in elevated ambient temperature applications.
  • Product is marked on top surface with code to allow amperage-rating identification without testing.
  • Low profile for height sensitive applications.
  • Flat top surface for pick-and-place operations.
  • Element covering material is resistant to industry standard cleaning operations.
  • Mounting pad and electrical performance is identical to Littelfuse 429 and 433 Series products.
  • Alloy based element construction provides superior inrush withstand characteristics (l2t) over ceramic or glass based 1206 chip fuse products.


  • Cell phones
  • Battery packs
  • Digital cameras
  • DVD players
  • Hard disk drives
Property (Mouseover for details) Value
Body Advanced High Temperature Substrate
Nominal Melting I2T (A2sec) 0.0045
Min Operating Temp °C -55
Max Operating Temp (°C) 90
Nominal Cold Resistance (Ohms) 0.351
Opening Very Fast-Acting (FF)

Littelfuse_Phils_ISO9001_102407icon 2022-06-17_ISO 9001 2015_LF Phils

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

csa CSA_1422-01_029862

UR UR_JDYX2_E10480_9_30_14

466_375 ECAD Models

TUV_50119118icon TUVR_J50518280

pdf icon Fuse 466 Datasheet

The 466 Series Fast-Acting Surface Mount Fuse (SMF) is a small (1206 size) thin-film device...

466 Series TC Curve

pdf icon Fuse Accessories Selection Guide

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

pdf icon Fuse Selection Guide

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

pdf icon Product Selection Guide

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

pdf icon 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...

pdf icon Fuseholder Selection Guide

pdf icon Fuseology Selection Guide

Littelfuse Fuseology Selection Guide

Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s)
0466.375NR FUSE 125V FA LEAD FREE SLIM 1206 .375A RoHS No 01/01/2008 PbFree No 01/01/2008 CoC_RoHS10_0466.375NR_09-24-2019 REACH211_Declaration_0466.375NR_03-01-2021 No
Does not Contain
0466.375NRHF FUSE 125V FA HALOGEN FREE SLIM1206 .375A RoHS No 01/01/2008 PbFree No 01/01/2008 CoC_RoHS10_0466.375NRHF_10-8-2019 REACH211_Declaration_0466.375NRHF_03-22-2021 No
Does not Contain
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