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Unique-Bargains

Unique-Bargains 250V 0.5A 5x20mm Fast Blow Glass Tube Fuse 50pcs

SKU CH-ZT3D-Q10GR

Pack of 50 fast-blow glass tube fuses rated 250V 0.5A, measuring 5 x 20mm for electrical equipment protection

  • Fast blow action protects circuits quickly
  • 250 V rating suits many low-voltage devices
  • 5 A current limit guards sensitive equipment
  • Standard 5 x 20 mm glass tube fits common holders
  • Pack of 50 fuses keeps spares on hand

What this product is

This pack contains fifty 5 × 20 mm glass tube fuses rated at 250 V and 0.5 A. They are fast-blow devices designed to interrupt over-current quickly in low-power circuits. The fuses are supplied new and suit repair or maintenance work on compatible electrical equipment.

How it fits into a build

Each fuse occupies a standard 5 mm by 20 mm holder, so the host device must provide matching clips or a PCB footprint. The glass body allows visual inspection of the element after a fault. The pack quantity frees the user from sourcing individual replacements for recurring service tasks.

Behaviour under sustained load

Fast-blow construction means the element opens rapidly once current exceeds the 0.5 A rating, limiting energy let-through during a fault. The low breaking capacity suits circuits where prospective short-circuit current remains modest. Continuous operation at or near rated current will not cause nuisance opening if the circuit stays within design limits.

Highlights

  • Fast blow action protects circuits quickly
  • 250 V rating suits many low-voltage devices
  • 5 A current limit guards sensitive equipment
  • Standard 5 x 20 mm glass tube fits common holders
  • Pack of 50 fuses keeps spares on hand

Specifications

BrandUnique Bargains

Questions about this item

Will the .5 A rating hold continuously or does the fast-blow design open on brief inrush?

The fast-blow glass tube is rated at .5 A and 250 V; it will interrupt quickly on overcurrent rather than tolerate sustained overloads.

Do these 5 x 20 mm fuses generate noticeable heat when run all day at rated load?

At .5 A the dissipation is small; the glass and metal construction stays cool enough for continuous operation inside equipment.

What holder or clip do I need to install a 5 x 20 mm glass fuse?

A standard 5 x 20 mm fuse holder or PCB clip accepts the .19 in diameter by .78 in length tube supplied in the 50-piece pack.

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