466 Series - SlimLine Lead-Free Halogen-Free 1206 Very Fast-Acting Thin-Film Fuse

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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. See Part Numbering section for additional information.


  • Product is compatible with lead-free solders and higher temperature profiles
  • 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 pickand-place operations
  • Element-covering material is resistant to industry standard cleaning operations
  • Alloy-based element construction provides superior inrush withstand characteristics (I2t) over ceramic or glass-based 1206 chip fuse products
  • Lead-free, Halogen-free and RoHS compliant


Secondary protection for space constrained applications:

  • Cell phones
  • Battery packs
  • Digital cameras
  • DVD players
  • Hard disk drives

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)VDC (V)VAC (V)Nominal Melting I2T (A2sec)Resistance
Interrupting RatingBodyMin Operating Temp (°C)Max Operating Temp (°C)Marking CodeNom
0466.1250.1251251250.000643.92550A@125VDCAdvanced High Temperature Substrate-5590B0.0793634.37Very Fast-Acting (FF)1206 (3216)CheckOrder
0466.2000.21251250.000551.150A@125VDCAdvanced High Temperature Substrate-5590C0.0509254.28Very Fast-Acting (FF)1206 (3216)CheckOrder
0466.2500.251251250.00220.69150A@125VDCAdvanced High Temperature Substrate-5590D0.0518207.01Very Fast-Acting (FF)1206 (3216)CheckOrder
0466.3750.3751251250.00450.35150A@125VDCAdvanced High Temperature Substrate-5590E0.0634169.18Very Fast-Acting (FF)1206 (3216)CheckOrder
0466.5000.563630.0060.24850A@63VDCAdvanced High Temperature Substrate-5590F0.0792158.47Very Fast-Acting (FF)1206 (3216)CheckOrder
0466.7500.7563630.02760.10650A@63VDCAdvanced High Temperature Substrate-5590G0.07498.65Very Fast-Acting (FF)1206 (3216)CheckOrder
0466001.163630.04230.07550A@63VDCAdvanced High Temperature Substrate-5590H0.0879.97Very Fast-Acting (FF)1206 (3216)CheckOrder
0466002.263630.23260.0350A@63VDCAdvanced High Temperature Substrate-5590N0.157578.73Very Fast-Acting (FF)1206 (3216)CheckOrder
0466003.332320.5760.01950A@32VDCAdvanced High Temperature Substrate-5590P0.22875.99Very Fast-Acting (FF)1206 (3216)CheckOrder
0466004.432321.7640.01450A@32VDCAdvanced High Temperature Substrate-5590S0.29874.5Very Fast-Acting (FF)1206 (3216)CheckOrder
0466005.532322.50.01150A@32VDCAdvanced High Temperature Substrate-5590T0.368873.75Very Fast-Acting (FF)1206 (3216)CheckOrder
046601.51.563630.11030.04650A@63VDCAdvanced High Temperature Substrate-5590K0.124482.97Very Fast-Acting (FF)1206 (3216)CheckOrder
046602.52.532320.35160.02350A@32VDCAdvanced High Temperature Substrate-5590O0.192576.99Very Fast-Acting (FF)1206 (3216)CheckOrder
04661.251.2563630.0640.05750A@63VDCAdvanced High Temperature Substrate-5590J0.107185.71Very Fast-Acting (FF)1206 (3216)CheckOrder
04661.751.7563630.18350.03850A@63VDCAdvanced High Temperature Substrate-5590L0.141380.73Very Fast-Acting (FF)1206 (3216)CheckOrder

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