451 Series - NANO2® Fast-Acting Subminiature Surface Mount Fuse

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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 Nano SMF Fuse is a very small, Wire-in-Air (WIA) square shape surface mount fuse which is very suitable for the secondary side circuit over-current protection applications and is designed for PCB using surface mount technology.

Features:

  • Very fast acting
  • Small size
  • Wide range of current rating available (0.062A to 20A)
  • Wide operating temperature range
  • Low temperature rerating
  • RoHS compliant and Halogen Free

Applications:

  • Notebook PC
  • LCD/PDP TV
  • LCD monitor
  • LCD/PDP panel
  • LCD backlight inverter
  • Portable DVD player
  • Power supply
  • Networking
  • PC server
  • Cooling fan system
  • Storage system
  • Telecom system
  • Wireless basestation
  • White goods
  • Game console
  • Office Automation equipment
  • Battery charging circuit protection
  • Industrial equipment

Access specifications, certifications, check availability and order parts below

Catalog #VDC (V)VAC (V)Nominal Melting I2T (A2sec)Resistance
(Ω)
BodyMSLOpeningOperating TemperaturePartner ECAD ModelsStockSamplesCompare
045102065651540.00244CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451020CheckOrder
0451.0621251250.000195.5CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451.062CheckOrder
0451.0801251250.000334.05CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451.080CheckOrder
0451.1001251250.001383.1CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451.100CheckOrder
0451.1251251250.6641.7CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451.125CheckOrder
0451.1601251250.00481.2157CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451.160CheckOrder
0451.2001251250.00890.8372CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451.200CheckOrder
0451.2501251250.01580.5765CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451.250CheckOrder
0451.3151251251.920.3918CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451.315Order
0451.3751251250.04420.4541CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451.375CheckOrder
0451.4001251250.05510.4233CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451.400CheckOrder
0451.5001251250.08240.3046CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451.500CheckOrder
0451.6301251250.13810.2022CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451.630CheckOrder
0451.7501251250.21430.1444CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451.750CheckOrder
0451.8001251250.26540.1355CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451.800CheckOrder
0451001.1251250.60290.078CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451001.CheckOrder
0451002.1251250.530.0367CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451002.CheckOrder
0451003.1251251.650.0227CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451003.CheckOrder
0451004.1251253.1520.016CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451004.CheckOrder
0451005.1251255.5660.0125CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451005.CheckOrder
0451007.12512510.320.009CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451007.CheckOrder
0451008.12512520.230.0077CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451008.CheckOrder
045101.51251250.8530.063CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C045101.5CheckOrder
045101.61251251.060.058CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C045101.6CheckOrder
0451010.12512526.460.0056CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451010.CheckOrder
0451012.656547.970.0049CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451012.CheckOrder
0451015.1251250.8530.0037CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C0451015.CheckOrder
045102.51251251.0290.0286CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C045102.5CheckOrder
045103.51251252.4690.02CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C045103.5CheckOrder
045106.31251259.170.0096CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C045106.3CheckOrder
04511.251251250.6640.078CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C04511.25CheckOrder
04513.151251251.920.0215CeramicLevel 1Very Fast-Acting (FF)-55° to 125°C04513.15CheckOrder
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
0451020.MRSN FUSE 65V V/FA NANO2 Sn-DIP ROHS 20A RoHS No 06/09/2015 PbFree No CoC_RoHS9_0451020.MRSN REACH_SVHC Declaration (Contain)_0451020.MRSN Yes
06/09/2015
Contains IPC_0451020.MRSN
0451020.MRL FUSE 65V V/FA NANO2 W/Au Caps ROHS 20A RoHS No 06/09/2015 PbFree No CoC_RoHS9_0451020.MRL REACH_SVHC Declaration (Contain)_0451020.MRL Yes
06/09/2015
Contains IPC_0451020.MRL
0451.062MRL FUSE 125V V/FA NANO2 W/Au CAPS RoHS.062A RoHS No 01/12/2004 PbFree No CoC_RoHS9_0451.062MRL REACH_SVHC Declaration (Contain)_0451.062MRL Yes
Contains IPC_0451.062MRL_0451.062NRL
0451.080NRL FUSE 125V V/FA NANO2 W/Au CAPS RoHS.080A RoHS No 01/12/2004 PbFree No CoC_RoHS9_0451.080NRL REACH_SVHC Declaration (Contain)_0451.080NRL Yes
Contains IPC_0451.080MRL_0451.080NRL
0451.080MRL FUSE 125V V/FA NANO2 W/Au CAPS RoHS.080A RoHS No 01/12/2004 PbFree No CoC_RoHS9_0451.080MRL REACH_SVHC Declaration (Contain)_0451.080MRL Yes
Contains IPC_0451.080MRL_0451.080NRL
0451.080MR FUSE 125V V/FA NANO2 W/Ag CAPS .080A RoHS No 01/12/2004 PbFree No Yes
0451.100NRL FUSE 125V V/FA NANO2 W/Au CAPS RoHS.100A RoHS No 01/12/2004 PbFree No CoC_RoHS9_0451.100NRL REACH_SVHC Declaration (Contain)_0451.100NRL Yes
Contains IPC_0451.100MRL_0451.100NRL
0451.100MRL FUSE 125V V/FA NANO2 W/Au CAPS RoHS.100A RoHS No 01/12/2004 PbFree No CoC_RoHS9_0451.100MRL REACH_SVHC Declaration (Contain)_0451.100MRL Yes
Contains IPC_0451.100MRL_0451.100NRL
0451.100MR FUSE 125V V/FA NANO2 W/Ag CAPS .100A RoHS No 01/12/2004 PbFree No Yes
0451.125MRL FUSE 125V V/FA NANO2 W/Au CAPS RoHS.125A RoHS No 01/12/2004 PbFree No CoC_RoHS9_0451.125MRL REACH_SVHC Declaration (Contain)_0451.125MRL
Contains IPC_0451.125MRL
0451.125NRL FUSE 125V V/FA NANO2 W/Au CAPS RoHS.125A RoHS No 01/12/2004 PbFree No CoC_RoHS9_0451.125NRL REACH_SVHC Declaration (Contain)_0451.125NRL
Contains
0451.160MRL FUSE 125V V/FA NANO2 W/Au CAPS RoHS.160A RoHS No 01/12/2004 PbFree No CoC_RoHS9_0451.160MRL REACH_SVHC Declaration (Contain)_0451.160MRL Yes
Contains
0451.160NRL FUSE 125V V/FA NANO2 W/Au CAPS RoHS.160A RoHS No 01/12/2004 PbFree No REACH_SVHC Declaration (Contain)_0451.160NRL Yes
Contains
0451.200MRL FUSE 125V V/FA NANO2 W/Au CAPS RoHS.200A RoHS No 01/12/2004 PbFree No