048712.5 - 487 Series

Series: 487
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Fuse 487 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.

487 series is the first fast-acting fuse with both AC and DC rating from the Littelfuse 5X20mm fuse family. This fast-acting ceramic body fuse provides over-current protection for telecom power supplies and datacenter server power supplies where a high-voltage DC interrupting rating is required.


  • Lower I2t and faster tripping
  • High-current ratings up to 16A in a 5X20mm footprint
  • 420V AC rating
  • 420V DC rating


  • Telecom Power Supplies
  • Datacenter Server Power Supplies
  • Intelligent commercial buildings
  • High-energy and power efficient applications (3-phase power supplies, inverters, and ballasts)
Property (Mouseover for details) Value
Nominal Melting I2T (A2sec) 170
Nominal Cold Resistance (Ohms) 0.0078
Opening Fast-Acting (F)
VAC (V) 420
Partner ECAD Models 048712.5
Operating Temperature -55° to 125°C
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
048712.5MXEP FUSE 420Vac/dc 5X20 FA PT 12.5A RoHS No 11/23/2014 PbFree No 11/23/2014 CoC_RoHS10_048712.5MXEP REACH191_Declaration_048712.5MXEP Yes
Does not Contain IPC_048712.5MXEP
048712.5MXP FUSE 420Vac/dc 5X20 FA 12.5A RoHS No 11/23/2014 PbFree No 11/23/2014 Yes
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