451 Series - NANO Fast-Acting Subminiature Surface Mount Fuse

451_Series
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 #Amps (A)VDC (V)VAC (V)Nominal Melting I2T (A2sec)Resistance
(Ω)
Interrupting RatingBodyMin Operating Temp °CMax Operating Temp (°C)Marking CodeStockSamplesCompare
04510202065651540.00244400A@32VDCCeramic-5512520A LFCheckOrder
0451.0620.0621251250.000195.5300A@32VDCCeramic-5512562mA LFCheck
0451.0800.081251250.000334.05300A@32VDCCeramic-5512580mA LFCheck
0451.1000.11251250.001383.1300A@32VDCCeramic-55125100mA LFCheck
0451.1250.1251251250.002861.7300A@32VDCCeramic-55125125mA LFCheckOrder
0451.1600.161251250.00481.2157300A@32VDCCeramic-55125160mA LFCheckOrder
0451.2000.21251250.00890.8372300A@32VDCCeramic-55125200mA LFCheckOrder
0451.2500.251251250.01580.5765300A@32VDCCeramic-55125250mA LFCheckOrder
0451.3150.3151251250.03110.3918300A@32VDCCeramic-55125315mA LFCheckOrder
0451.3750.3751251250.04420.4541300A@32VDCCeramic-55125375mA LFCheck
0451.4000.41251250.05510.4233300A@32VDCCeramic-55125400mA LFCheck
0451.5000.51251250.08240.3046300A@32VDCCeramic-55125500mA LFCheck
0451.6300.631251250.13810.2022300A@32VDCCeramic-55125630mA LFCheck
0451.7500.751251250.21430.1444300A@32VDCCeramic-55125750mA LFCheck
0451.8000.81251250.26540.1355300A@32VDCCeramic-55125800mA LFCheck
0451001.11251250.60290.078300A@32VDCCeramic-551251A LFCheck
0451002.21251250.530.0367300A@32VDCCeramic-551252A LFCheck
0451003.31251251.650.0227300A@32VDCCeramic-551253A LFCheck
0451004.41251253.1520.016300A@32VDCCeramic-551254A LFCheck
0451005.51251255.5660.0125300A@32VDCCeramic-551255A LFCheck
0451007.712512510.320.009400A@32VDCCeramic-551257A LFCheck
0451008.812512520.230.0077400A@32VDCCeramic-551258A LFCheck
045101.51.51251250.8530.063300A@32VDCCeramic-551251.5A LFCheck
045101.61.61251251.060.058300A@32VDCCeramic-551251.6A LFCheck
0451010.1012512526.460.0056400A@32VDCCeramic-5512510A LFCheck
0451012.12656547.970.0049400A@32VDCCeramic-5512512A LFCheck
0451015.15656597.820.0037400A@32VDCCeramic-5512515A LFCheck
045102.52.51251251.0290.0286300A@32VDCCeramic-551252.5A LFCheck
045103.53.51251252.4690.02300A@32VDCCeramic-551253.5A LFCheck
045106.36.31251259.170.0096400A@32VDCCeramic-551256.3A LFCheck
04511.251.251251250.6640.078300A@32VDCCeramic-551251.25A LFCheck
04513.153.151251251.920.0215300A@32VDCCeramic-551253.15A LFCheck

EC611 Circuit Protection for Lithium Ion and Lithium Polymer Rechargeable Battery Applications

This application note summarizes how the increased use of Lithium-Ion and Lithium Polymer battery packs in applications where user safety is critical, the implementation of secondary protection circuits will ensure an unsurpassed level of safety with minimal cost impact.

451 Series Time Curve Data

pdf icon Littelfuse Fuse Accessories Selection Guide

A quick reference guide to selecting holders, blocks and clips for fuse applications...

pdf icon Fuse Selection Guide

A quick reference guide to selecting fuses for electronic applications...

pdf icon Product Selection Guide

Electronics Circuit Protection Product Selection Guide - A guide to selecting Littelfuse circuit protection components for electronic applications...

Littelfuse_Phils_ISO9001_102407icon Philipines ISO 90012000

pdf icon 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...

pdf icon Electronic Fuse Products Catalog

Littelfuse Electronic Fuse Products Catalog -- Miniature Fuse Products for Overcurrent Protection of Small Electrical and Electrical Applications...

PhilsISO14001Certificateicon Phils ISO 14001 2004

pdf icon Fuseholder Selection Guide

pdf icon Fuseology Selection Guide

Littelfuse Fuseology Selection Guide