Bel Fuse 0678 Surface-Mount Fuses

Bel Fuse 0678 Surface-Mount Fuses feature two types: fast-blow fuses and enhanced-breaking capability brick fuses. These fuses operate from 500mA to 5A for the 0678D series and from 500mA to 40A for the 0678H series. Bel Fuse 0678 Surface-Mount Fuses are compatible with +260ºC, IR Pb-free solder process. These fuses are constructed in 3912 case sizes with a ceramic tube/end cap. Bel Fuse 0678 Surface-Mount Fuses are suitable for voltage regulator modules, PC servers, office electronic equipment, power supplies, and industrial, medical, and mass storage systems.


  • Common
    • Compatible with +260°C flow
    • RoHS compliant with exemption 7a and halogen-free
    • Tape and reel for auto-start insert process
  • 0678H
    • SMD high-current fuse
    • Offers enhanced breaking capability
    • 500mA to 5A current rating
  • 0678D
    • SMD fast-blow fuses
    • 500mA to 40A current rating
    • -55°C to +125°C operating temperature range
    • High breaking capacity (350VAC/125VDC)


  • Voltage regular modules
  • PC servers
  • Office electronic equipment
  • Industrial
  • Medical equipment
  • POE and POE+
  • Power supplies
  • DC-DC converters
  • Mass storage systems
Published: 2018-04-02 | Updated: 2022-08-15