521002 - PICO II 521 Series Series

Littelfuse Fuse PICO 521 image
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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 0521 PICO® II Very Fast-Acting Fuse Series is an AEC-Q200 qualified fuse designed to meet an extensive array of performance characteristics in a space-saving sub-miniature package.


  • Very fast-acting
  • Small size
  • AEC-Q200 qualified
  • Applicable in wire harness application
  • Wide operating temperature range
  • Low temperature re-rating


  • Battery Management System protection

Chinese Subtitles - Japanese Subtitles

Property (Mouseover for details) Value
Ampere Rating (A) 2
Body Ceramic
Nominal Melting I2T (A2sec) 0.405
Interrupting Rating 300A @ 75V DC
Moisture Sensitivity Level Not Applicable
Nominal Voltage Drop (mV) 0.141
Nominal Cold Resistance (Ohms) 0.0473
Opening Very Fast-Acting (FF)
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
0521002.YAT1L FUSE 75V FA PICO II 2A AECQ RoHS No 06/01/2021 PbFree No 06/01/2021 CoC_RoHS9_0521002.YAT1L Yes
0521002.MAT1L FUSE 75V FA PICO II 2A AECQ RoHS No 06/01/2021 PbFree No 06/01/2021 Yes
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