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1A Glass Fuse 250V 5X20mm (Pack of 2)

SKU: E5OZARU9CQ
A glass fuse is a widely used electrical safety component designed to protect circuits from damage caused by overcurrent or short circuits. It consists of a thin metal wire or filament enclosed inside a transparent cylindrical glass tube, with metal end caps on both sides for easy installation in fuse holders. A glass fuse works on a simple principle: when...
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Specifications

Specifications:

Fuse Type: Glass Cartridge Fuse
Size: 5 × 20 mm
Rated Current: 1A (1000mA)
Rated Voltage: 250V AC
Body Material: Transparent Glass Tube
End Caps Material: Nickel-Plated Brass
Fuse Element: Thin Metal Wire
Breaking Capacity: Low to Medium
Mounting Type: Through-hole / Fuse Holder Compatible
Operating Temperature: -20°C to +85°C (Typical)
Blow Type: Fast-Acting (Quick Blow) (may vary by model)
Standards Compliance: IEC 60127 (typical)

Additional Resources

Glass Fuse.PDF

FAQ

1. What is a glass fuse?

A glass fuse is a safety device used in electrical circuits to protect components from overcurrent or short circuits by breaking the circuit when excess current flows.

2. How does a glass fuse work?

A glass fuse works by melting its internal metal filament when the current exceeds its rated value, which stops the flow of electricity and protects the circuit.

3. Where are glass fuses commonly used?

Glass fuses are commonly used in power supplies, electronic devices, multimeters, home appliances, and DIY electronics projects.

4. How can you identify a blown glass fuse?

A blown glass fuse can be identified by a broken or blackened filament inside the transparent glass tube.

View full product details

A glass fuse is a widely used electrical safety component designed to protect circuits from damage caused by overcurrent or short circuits. It consists of a thin metal wire or filament enclosed inside a transparent cylindrical glass tube, with metal end caps on both sides for easy installation in fuse holders.

A glass fuse works on a simple principle: when the current flowing through the circuit exceeds the rated value, the internal metal filament heats up and melts (blows), breaking the circuit and stopping the flow of electricity. This prevents damage to sensitive components and reduces the risk of fire.

⚙️ Construction

  • Glass Tube: Transparent body for visual inspection
  • Metal Caps: Conductive ends for connection
  • Fuse Element: Thin wire that melts during overcurrent
  • Filling (optional): Sometimes air or sand for arc suppression

⚡ Key Features

  • Easy to identify a blown fuse due to transparent body
  • Available in various current ratings (mA to several amps)
  • Compact sizes like 5×20mm and 6×30mm
  • Fast-acting or slow-blow types available
  • Low cost and widely available