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 #Amps (A)VDC (V)VAC (V)Nominal Melting I2T (A2sec)Resistance
Interrupting RatingBodyMin Operating Temp (°C)Max Operating Temp (°C)Marking CodeMSLNom
0438.2500.2563320.00172.21850A@63VDCCeramic Body-55150IPC/JEDEC J-STD-020C LEVEL 10.1380.55Fast-Acting (F)0603 (1608)CheckOrder
0438.3750.37563320.00411.24750A@63VDCCeramic Body-55150IPC/JEDEC J-STD-020C LEVEL 10.1830.488Fast-Acting (F)0603 (1608)CheckOrder
0438.5000.563320.010.82950A@63VDCCeramic Body-55150IPC/JEDEC J-STD-020C LEVEL 10.2430.486Fast-Acting (F)0603 (1608)CheckOrder
0438.7500.7563320.02810.46650A@63VDCCeramic Body-55150IPC/JEDEC J-STD-020C LEVEL 10.2840.378Fast-Acting (F)0603 (1608)CheckOrder
0438001.163320.05930.3150A@63VDCCeramic Body-55150IPC/JEDEC J-STD-020C LEVEL 10.3510.351Fast-Acting (F)0603 (1608)CheckOrder
0438002.2320.1490.05150A@32VDCCeramic Body-55150NIPC/JEDEC J-STD-020C LEVEL 10.2140.107Fast-Acting (F)0603 (1608)CheckOrder
0438003.3320.29220.025550A@32VDCCeramic Body-55150PIPC/JEDEC J-STD-020C LEVEL 10.2790.093Fast-Acting (F)0603 (1608)CheckOrder
0438004.4320.6920.01750A@32VDCCeramic Body-55150SIPC/JEDEC J-STD-020C LEVEL 10.3160.079Fast-Acting (F)0603 (1608)CheckOrder
0438005.5320.73980.011550A@32VDCCeramic Body-55150TIPC/JEDEC J-STD-020C LEVEL 10.370.074Fast-Acting (F)0603 (1608)CheckOrder
0438006.6241.38380.008550A@24VDCCeramic Body-55150UIPC/JEDEC J-STD-020C LEVEL 10.4320.072Fast-Acting (F)0603 (1608)CheckOrder
043801.51.563320.09020.17450A@63VDCCeramic Body-55150KIPC/JEDEC J-STD-020C LEVEL 10.5520.368Fast-Acting (F)0603 (1608)CheckOrder
043802.52.532320.19770.032450A@32VDCCeramic Body-55150OIPC/JEDEC J-STD-020C LEVEL 10.2380.095Fast-Acting (F)0603 (1608)CheckOrder
043803.53.532320.47520.020550A@32VDCCeramic Body-55150RIPC/JEDEC J-STD-020C LEVEL 10.2870.082Fast-Acting (F)0603 (1608)CheckOrder
04381.251.2532320.0510.250A@63VDCCeramic Body-55150JIPC/JEDEC J-STD-020C LEVEL 10.4560.365Fast-Acting (F)0603 (1608)CheckOrder
04381.751.7563320.1441.40550A@63VDCCeramic Body-55150LIPC/JEDEC J-STD-020C LEVEL 10.540.36Fast-Acting (F)0603 (1608)CheckOrder

Littelfuse Fuse 438 Series Data Sheet

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