045101.6 - 451 Series

Series: 451
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Fuse 451 453 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 Nano2 SMF Fuse is a very small, square surface mount fuse that is also available in a surface mount holder.


  •  Very fast acting
  •  Small size 
  •  Wide range of current rating available (62mA to 15A)
  •  Wide operating temperature range
  •  Low temperature de-rating
  •  RoHS compliant
  •  Halogen Free
Property (Mouseover for details) Value
Body Ceramic
Nominal Melting I2T (A2sec) 1.06
Moisture Sensitivity Level Level 1
Nominal Cold Resistance (Ohms) 0.058
Opening Very Fast-Acting (FF)
VAC (V) 125
VDC (V) 125
Partner ECAD Models 045101.6
Operating Temperature -55° to 125°C

METIicon UL_NBK030205-E10480A

CSAicon CSA_1422-01_029862

cULicon cUL_JDYX7_E10480_101335397

ULicon UL_JDYX_E10480_101335397

pdficon Fuseology Selection Guide

Littelfuse Fuseology Selection Guide

pdficon 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...

pdficon Fuseholder Selection Guide

pdficon Fuse 451 and 453 Datasheet

The Nano2 SMF Fuse is a very small Wire-in-Air (WIA) square shape surface mount fuse...

Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
045101.6NRL FUSE 125V V/FA NANO2 W/Au CAPS RoHS 1.6A RoHS No 01/12/2004 PbFree No Yes
045101.6MR FUSE 125V V/FA NANO2 W/SnPb CAPS 1.6A RoHS No 01/12/2004 PbFree No Yes
045101.6MRL FUSE 125V V/FA NANO2 W/Au CAPS RoHS 1.6A RoHS No 01/12/2004 PbFree No CoC_RoHS9_045101.6MRL REACH209_Declaration_Contain-_045101.6MRL Yes
Contains IPC_045101.6MRL_045101.6NRL
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