0407003A - 407A Series

Series: 407A
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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.

407A Series AECQ-Compliant fuse is specifically tested to cater to secondary circuit protection needs of compact auto electronics applications.
The general design ensures excellent temperature stability and performance reliability. This high I²t fuse series is designed to have ultra high inrush current withstand capability to avoid nuisance fuse open.


  • Operating Temperature from -55º C to +150º C
  • 100% Lead Free ROHS compliant and Halogen Free
  • Suitable for both leaded and lead-free reflow/wave soldering
  • UL Recognized to UL/CSA/NMX 248-1 and UL/CSA/NMX 248-14
  • Ultra High I2T valueT value


  • Li-ion battery
  • LED lighting
  • Automotive navigation system
  • TFT display
  • Battery Management System (BMS)
  • Cluster

Chinese Subtitles - Japanese Subtitles

Property (Mouseover for details) Value
Body Ceramic
Nominal Melting I2T (A2sec) 1.3
Moisture Sensitivity Level IPC/JEDEC J-STD-020C Level 1
Nominal Cold Resistance (Ohms) 0.04
Opening Slo-Blo/Time Lag (T)/Time Delay
Operating Temperature -55° to 150°C
Partner ECAD Models 0407003A
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
0407003.WRA FUSE 32V HIGH I2T AUTOC 1206 TL 3A RoHS No 12/09/2020 PbFree No 12/09/2020 CoC_RoHS10_0407003.WRA REACH209_Declaration_0407003.WRA Yes
Does not Contain IPC_0407003.WRA
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