449 Series - Lead-Free NANO2® SLO-BLO® Subminiature Surface Mount Fuse

Series: 449
Fuse 449 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 lead free NANO2® Slo-Blo® fuse is RoHS compliant, Halogen Free and 100% lead-free. This product is fully compatible with lead-free solder alloys and higher temperature profiles associated with lead-free assembly. The Slo-Blo® fuse design has enhanced inrush withstand characteristics over the NANO2® Fast-Acting Fuse. The unique time delay feature of this fuse design helps solve the problem of nuisance “opening” by accommodating inrush currents that normally cause a fast-acting fuse to open.

Features:

  • Lead-free and Halogen Free
  • Small size
  • Wide range of current ratings available
  • Wide operating temperature range
  • Low temperature rerating

Applications:

Secondary protection for space constrained 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




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Access specifications, certifications, check availability and order parts below

Catalog #VDC (V)VAC (V)Nominal Melting I2T (A2sec)Resistance
(Ω)		BodyMSLOpeningOperating TemperatureStockSamplesCompare
0449.3751251250.0881.513CeramicLevel 1Slo-Blo/Time Lag (T)/Time Delay-55° to 125°CCheckOrder
0449.5001251250.2580.7633CeramicLevel 1Slo-Blo/Time Lag (T)/Time Delay-55° to 125°CCheckOrder
0449.7501251250.8470.408CeramicLevel 1Slo-Blo/Time Lag (T)/Time Delay-55° to 125°CCheckOrder
0449001.1251251.760.2516CeramicLevel 1Slo-Blo/Time Lag (T)/Time Delay-55° to 125°CCheckOrder
0449002.1251256.760.0708CeramicLevel 1Slo-Blo/Time Lag (T)/Time Delay-55° to 125°CCheckOrder
0449003.12512519.550.0352CeramicLevel 1Slo-Blo/Time Lag (T)/Time Delay-55° to 125°CCheckOrder
0449004.12512540.80.0227CeramicLevel 1Slo-Blo/Time Lag (T)/Time Delay-55° to 125°CCheckOrder
0449005.12512559.590.0171CeramicLevel 1Slo-Blo/Time Lag (T)/Time Delay-55° to 125°CCheckOrder
044901.51251254.70.1186CeramicLevel 1Slo-Blo/Time Lag (T)/Time Delay-55° to 125°CCheckOrder
044902.512512513.180.04CeramicLevel 1Slo-Blo/Time Lag (T)/Time Delay-55° to 125°CCheckOrder
044903.512512532.70.0261CeramicLevel 1Slo-Blo/Time Lag (T)/Time Delay-55° to 125°CCheckOrder
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
0449.375MR FUSE 125V SB NANO2 LEAD-FREE .375A RoHS No 07/14/2005 PbFree No 03/26/2007 No
0449.500MR FUSE 125V SB NANO2 LEAD-FREE .500A RoHS No 07/14/2005 PbFree No 03/26/2007 No
0449.750MR FUSE 125V SB NANO2 LEAD-FREE .750A RoHS No 07/14/2005 PbFree No 03/26/2007 No
0449001.MR FUSE 125V SB NANO2 LEAD-FREE 1A RoHS No 07/14/2005 PbFree No 03/26/2007 No
0449002.MR FUSE 125V SB NANO2 LEAD-FREE 2A RoHS No 07/14/2005 PbFree No 03/26/2007 No
0449003.MR FUSE 125V SB NANO2 LEAD-FREE 3A RoHS No 07/14/2005 PbFree No 03/26/2007 No
0449004.MR FUSE 125V SB NANO2 LEAD-FREE 4A RoHS No 07/14/2005 PbFree No 03/26/2007 No
0449005.MR FUSE 125V SB NANO2 LEAD-FREE 5A RoHS No 07/14/2005 PbFree No 03/26/2007 No
044901.5MR FUSE 125V SB NANO2 LEAD-FREE 1.5A RoHS No 07/14/2005 PbFree No 03/26/2007 No
044902.5MR FUSE 125V SB NANO2 LEAD-FREE 2.5A RoHS No 07/14/2005 PbFree No 03/26/2007 Yes
044903.5MR FUSE 125V SB NANO2 LEAD-FREE 3.5A RoHS No 07/14/2005 PbFree No 03/26/2007 No
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