688030 - 688 Series

Series: 688
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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 688 series is a 70Vdc rated slow blow ceramic cartridge fuse in 6x25mm form factor, designed in accordance to UL248-14 standard.


  • High Interrupting Rating: 2500A@70Vdc
  • High Surge Withstand Capability
  • Compact form factor with cartridge and axial lead version
  • Lead-Free, RoHS compliant, Halogen-Free
  • Operating Temperature: -55°C to 125 °C



  • SPD in telecom data center
Property (Mouseover for details) Value
VDC (V) 70
Body Ceramic
Nominal Melting I2T (A2sec) 4200
Moisture Sensitivity Level Contact Littelfuse
Nominal Cold Resistance (Ohms) 0.0021
Opening Slo-Blo/Time Lag (T)/Time Delay
Partner ECAD Models 688030
Operating Temperature -55° to 125°C

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pdficon Fuse 688 Datasheet

Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
0688030.MXP FUSE 70VDC 6x25 Pb-free 30A RoHS No 08/09/2016 PbFree No 08/09/2016 CoC_RoHS10_0688030.MXP REACH209_Declaration_0688030.MXP Yes
Does not Contain IPC_0688030.MXP
0688030.MAT4P FUSE 70VDC 6x25 PT Ammo Pack Pb-free 30A RoHS No 08/09/2016 PbFree No 08/09/2016 CoC_RoHS10_0688030.MAT4P REACH219_Declaration_0688030.MAT4P Yes
Does not Contain IPC_0688030.MAT4P
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