443LC Series - NANO 280VAC-rated Surface Mount Fuses

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The 443LC Series NANO²® fuse is a 4012 footprint, Slo Blo surface mount fuse which provides overcurrent protection for applications with working voltage up to 277VAC.

Its high I2t provides superior surge withstand capability for its small footprint. This can therefore be used on applications where board space is a limitation, without worrying of any nuisance failures due to surge/pulse current and voltages in the application, or where larger sized solutions are previously being used.


  • 280VAC-rated fuse in a relatively small footprint of 10mm x 3mm (sq)
  • Slo Blo fuse type with relatively high I2t values
  • RoHS compliant, Halogen Free
  • Surface mount type fuse


  • Option for applications with working voltage up to 277VAC
  • With superior surge withstand capability, considering its size, and is suited for applications where surge current/voltages are inherent and board space is a constraint
  • Compliant to global EHS standards
  • Fully compatible with lead free solder alloys and higher temperature profiles associated with high volume, lead-free assembly SMD processes


  • Lighting Ballast
  • LED Driver Boards
  • LED Dimmer Controllers
  • 3-Phase power supplies
  • Utility connected  appliances and equipment rated at 277V AC

Access specifications, certifications, check availability and order parts below

Catalog #VAC (V)Nominal Melting I2T (A2sec)Resistance
BodyMin Operating Temp (°C)Max Operating Temp (°C)MSLOpeningPartner ECAD ModelsStockSamplesCompare
0443.5002801.610.6Ceramic-551251Slo-Blo/Time Lag (T)/Time Delay0443.500CheckOrder
0443.7502803.0250.275Ceramic-551251Slo-Blo/Time Lag (T)/Time Delay0443.750CheckOrder
044300128010.170.18Ceramic-551251Slo-Blo/Time Lag (T)/Time Delay0443001CheckOrder
044300228018.060.052Ceramic-551251Slo-Blo/Time Lag (T)/Time Delay0443002CheckOrder
044300328051.440.028Ceramic-551251Slo-Blo/Time Lag (T)/Time Delay0443003CheckOrder
0443004280122.50.016Ceramic-551251Slo-Blo/Time Lag (T)/Time Delay0443004CheckOrder
0443005280180.60.0115Ceramic-551251Slo-Blo/Time Lag (T)/Time Delay0443005CheckOrder
044301.528014.720.1Ceramic-551251Slo-Blo/Time Lag (T)/Time Delay044301.5CheckOrder
044302.528018.130.035Ceramic-551251Slo-Blo/Time Lag (T)/Time Delay044302.5CheckOrder
044303.528053.140.019Ceramic-551251Slo-Blo/Time Lag (T)/Time Delay044303.5CheckOrder
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s)
0443.500DRLC FUSE 280V TL NANO2 RoHS .500A RoHS No 06/06/2016 PbFree No CoC_RoHS9_0443.500DRLC_08-03-2020 REACH209_Declaration_-Contain-_0443.500DRLC_08-3-2020 Yes
0443.750DRLC FUSE 280V TL NANO2 RoHS .750A RoHS No 06/06/2016 PbFree No Yes
0443001.DRLC FUSE 280V TL NANO2 RoHS 1A RoHS No 06/06/2016 PbFree No CoC_RoHS9_0443001.DRLC_03-07-2019 REACH197_Declaration_with_Pb_0443001.DRLC_03-07-2019 Yes
0443002.DRLC FUSE 280V TL NANO2 RoHS 2A RoHS No 06/06/2016 PbFree No CoC_RoHS9_0443002.DRLC_01-28-2020 REACH205_Declaration_with_Pb_0443002.DRLC_01-28-2020 Yes
0443003.DRLC FUSE 280V TL NANO2 RoHS 3A RoHS No 12/26/2018 PbFree No 12/26/2018 CoC_RoHS9_0443003.DRLC_12-27-2018 REACH191_Declaration_with_Pb_0443003.DRLC_12-27-2018 Yes
0443004.DRLC FUSE 280V TL NANO2 RoHS 4A RoHS No 06/06/2016 PbFree No Yes
0443005.DRLC FUSE 280V TL NANO2 RoHS 5A RoHS No 05/23/2018 PbFree No 05/23/2018 Yes
044301.5DRLC FUSE 280V TL NANO2 RoHS 1.5A RoHS No 06/06/2016 PbFree No CoC_RoHS9_044301.5DRLC_03-07-2019 REACH197_Declaration_with_Pb_044301.5DRLC_03-07-2019 Yes
044302.5DRLC FUSE 280V TL NANO2 RoHS 2.5A RoHS No 06/06/2016 PbFree No Yes
044303.5DRLC FUSE 280V TL NANO2 RoHS 3.5A RoHS No 06/06/2016 PbFree No Yes
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