438 Series - 0603 Size Lead-Free, Halogen Free, High Temperature Very Fast-Acting Ceramic Fuse

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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 438 Series is a 100% Lead-free, RoHS compliant and Halogen-free fuse series designed specifically to provide over-current protection to circuits that operate under high working ambient temperature up to 150°C. The general design ensures excellent temperature stability and performance reliability. The high I²t values which is typical in the Littelfuse Ceramic Fuse family ensure high inrush current withstand capability.

  • Operating Temperature from -55°C to +150°C
  • 100% Lead-free, RoHS compliant and Halogenfree
  • Suitable for both leaded and lead-free reflow / wave soldering
  • Handheld Electronics
  • LCD Displays
  • Battery Packs
  • Hard Disk Drives
  • SD Memory Cards

Access specifications, certifications, check availability and order parts below

Catalog #VDC (V)VAC (V)Nominal Melting I2T (A2sec)Resistance
BodyMin Operating Temp (°C)Max Operating Temp (°C)MSLOpeningStockSamplesCompare
0438.25063320.00172.218Ceramic Body-55150IPC/JEDEC J-STD-020C LEVEL 1Fast-Acting (F)CheckOrder
0438.37563320.00411.247Ceramic Body-55150IPC/JEDEC J-STD-020C LEVEL 1Fast-Acting (F)CheckOrder
0438.50063320.010.829Ceramic Body-55150IPC/JEDEC J-STD-020C LEVEL 1Fast-Acting (F)CheckOrder
0438.75063320.02810.466Ceramic Body-55150IPC/JEDEC J-STD-020C LEVEL 1Fast-Acting (F)CheckOrder
0438001.63320.05930.31Ceramic Body-55150IPC/JEDEC J-STD-020C LEVEL 1Fast-Acting (F)CheckOrder
0438002.320.1490.051Ceramic Body-55150IPC/JEDEC J-STD-020C LEVEL 1Fast-Acting (F)CheckOrder
0438003.320.29220.0255Ceramic Body-55150IPC/JEDEC J-STD-020C LEVEL 1Fast-Acting (F)CheckOrder
0438004.320.6920.017Ceramic Body-55150IPC/JEDEC J-STD-020C LEVEL 1Fast-Acting (F)CheckOrder
0438005.320.73980.0115Ceramic Body-55150IPC/JEDEC J-STD-020C LEVEL 1Fast-Acting (F)CheckOrder
0438006.241.38380.0085Ceramic Body-55150IPC/JEDEC J-STD-020C LEVEL 1Fast-Acting (F)CheckOrder
043801.563320.09020.174Ceramic Body-55150IPC/JEDEC J-STD-020C LEVEL 1Fast-Acting (F)CheckOrder
043802.532320.19770.0324Ceramic Body-55150IPC/JEDEC J-STD-020C LEVEL 1Fast-Acting (F)CheckOrder
043803.532320.47520.0205Ceramic Body-55150IPC/JEDEC J-STD-020C LEVEL 1Fast-Acting (F)CheckOrder
04381.2532320.0510.2Ceramic Body-55150IPC/JEDEC J-STD-020C LEVEL 1Fast-Acting (F)CheckOrder
04381.7563320.1441.405Ceramic Body-55150IPC/JEDEC J-STD-020C LEVEL 1Fast-Acting (F)CheckOrder
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s)
0438.250WR FUSE 32V FA 0603 .250A RoHS No 08/26/2008 PbFree No CoC_RoHS10_0438.250WR_06-11-2019 REACH211_Declaration_0438.250WR_03-03-2021 Yes
Does not Contain
0438.375WR FUSE 32V FA 0603 .375A RoHS No 08/26/2008 PbFree No CoC_RoHS10_0438.375WR_10-8-2019 REACH209_Declaration_0438.375WR_08-18-2020 Yes
Does not Contain
0438.500WR FUSE 32V FA 0603 .500A RoHS No 08/26/2008 PbFree No CoC_RoHS10_0438.500WR_10-8-2019 REACH209_Declaration_0438.500WR_07-27-2020 Yes
Does not Contain
0438.750WR FUSE 32V FA 0603 .750A RoHS No 08/26/2008 PbFree No CoC_RoHS10_0438.750WR_05-04-2021 REACH211_Declaration_0438.750WR_05-04-2021 Yes
Does not Contain
0438001.WR FUSE 32V FA 0603 1A RoHS No 08/26/2008 PbFree No CoC_RoHS10_0438001.WR_06-11-2019 REACH209_Declaration_0438001.WR_07-06-2020 Yes
Does not Contain
0438002.WR FUSE 32V FA 0603 2A RoHS No 08/26/2008 PbFree No CoC_RoHS10_0438002.WR_06-11-2019 REACH197_Declaration_0438002.WR_04-29-2019 Yes
Does not Contain
0438003.WR FUSE 32V FA 0603 3A RoHS No 08/26/2008 PbFree No CoC_RoHS10_0438003.WR_07-29-2019 REACH219_Declaration_0438003.WR_07-26-2021 Yes
Does not Contain
0438004.WR FUSE 32V FA 0603 4A RoHS No 08/26/2008 PbFree No CoC_RoHS10_0438004.WR_07-27-2017 Yes
0438005.WR FUSE 32V FA 0603 5A RoHS No 08/26/2008 PbFree No CoC_RoHS10_0438005.WR_07-29-2019 REACH219_Declaration_0438005.WR_07-26-2021 Yes
Does not Contain
0438006.WR FUSE 24V FA 0603 6A RoHS No 08/26/2008 PbFree No 08/26/2008 CoC_RoHS10_0438006.WR_02-19-2020 REACH205_Declaration_0438006.WR_02-19-2020 Yes
Does not Contain
043801.5WR FUSE 32V FA 0603 1.5A RoHS No 08/26/2008 PbFree No CoC_RoHS10_043801.5WR_08-14-2019 REACH211_Declaration_043801.5WR_02-22-2021 Yes
Does not Contain
043802.5WR FUSE 32V FA 0603 2.5A RoHS No 08/26/2008 PbFree No 08/26/2008 CoC_RoHS10_043802.5WR_10-23-2017 REACH209_Declaration_043802.5WR_10-05-2020 Yes
Does not Contain
043803.5WR FUSE 32V FA 0603 3.5A RoHS No 08/26/2008 PbFree No CoC_RoHS10_043803.5WR_01-09-2018 REACH191_Declaration_043803.5WR_11-08-2018 Yes
Does not Contain
04381.25WR FUSE 32V FA 0603 1.25A RoHS No 08/26/2008 PbFree No CoC_RoHS10_04381.25WR_08-10-2017 REACH209_Declaration_04381.25WR_07-01-2020 Yes
Does not Contain
04381.75WR FUSE 32V FA 0603 1.75A RoHS No 08/26/2008 PbFree No CoC_RoHS10_04381.75WR_03-29-2019 REACH209_Declaration_04381.75WR_09-17-2020 Yes
Does not Contain
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