10A 250V Glass Fuse 5x20 mm

5x20 glass fuses are small, cylindrical fuses used to protect electrical and electronic circuits from overcurrent conditions. They are named after their dimensions: 5 mm diameter and 20 mm length. Inside the transparent glass tube, a metal wire or strip melts when the current exceeds a specified limit, breaking the circuit and preventing damage to equipment.

General Features:

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• Size: 5 mm diameter x 20 mm length
• Body Material: Clear glass (internal element visible)
• Internal Element: Melting wire or strip
• Rated Current: Typically available from 0.05A up to 15A
• Rated Voltage: 250V AC or 125V AC (depending on model)
• Response Type:
  • Fast-blow: Quickly interrupts the circuit during sudden overcurrent
  • Slow-blow (Time-delay): Withstands short-duration current surges before opening

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• Applications:
  • Electronic devices (TVs, power supplies, audio systems)
  • Industrial control panels
  • Chargers and small household appliances
  • Medical and laboratory equipment 
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  • Advantages:
• Space-saving due to compact size
• Easy to replace
• Visual inspection possible (through the clear glass tube)
• Cost-effective protection solution
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• Installation:
• Installed using fuse holders or fuse clips
• Some versions are suitable for PCB (Printed Circuit Board) mounting