688030 - 688 Series

Series: 688 Questions? Contact Littelfuse Support
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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
Ampere Rating (A) 30
VDC (V) 70
Body Ceramic Body
Nominal Melting I2T (A2sec) 4200
Min Operating Temp °C -55
Max Operating Temp (°C) 125
Marking Code VX
Moisture Sensitivity Level Contact Littelfuse
Nominal Cold Resistance (Ohms) 0.0021
Opening Slo-Blo/Time Lag (T)/Time Delay
Package Size 6x25mm

Littelfuse_TUV_R50119583icon TUV_T_50257715_01_6_18_13

UL_JDYX8icon CUR_JDYX8_E10480_10_30_14

UR UR_JDYX2_E10480_9_30_14

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