5A 250V Fast-Acting Glass Fuse with PCB Mount Holder

This set combines a 5A fast-acting 5×20mm glass fuse with a compatible PCB-mount holder.

The fuse is designed to open the circuit when excessive current flows, helping limit damage caused by overloads or short circuits. The removable holder allows the fuse to be inspected and replaced without directly soldering a new fuse onto the PCB.

Key Features

• 5A fast-acting glass cartridge fuse
• Standard 5×20mm fuse size
• Compatible PCB-mount fuse holder
• Removable protective holder cover
• Easy fuse inspection and replacement
• Compact through-hole mounting design
• Suitable for electronics, robotics and power-control projects

Specifications

Common Applications

• Robot power-distribution boards
• Motor-controller input protection
• DIY power supplies
• Battery-powered electronic projects
• Control panels
• Chargers and adapters
• General electronic equipment
• Prototype circuit boards

How It Works

The fuse is connected in series with the circuit. When current exceeds its operating characteristic for sufficient time, the internal fuse element melts and interrupts the circuit.

Fast-acting 5×20mm glass fuses are generally intended as supplementary overcurrent protection for equipment and internal circuits. :contentReference[oaicite:1]{index=1}

Installation Notes

• Mount the holder securely on a compatible PCB.
• Connect the fuse in series with the supply line being protected.
• Place the fuse as close as practical to the power source.
• Confirm correct PCB-hole spacing before manufacturing the board.
• Replace a blown fuse only with the correct size, current rating, voltage rating and response type.

Important Safety Information

A 5A fuse is not automatically suitable for every 5A load. Motors, pumps and other inductive loads can draw significantly higher current during startup or stall and may cause a fast-acting fuse to open unexpectedly.

Fuse selection should consider:

• Normal operating current
• Startup and stall current
• Wire current capacity
• Motor-driver rating
• Battery capability
• Fuse breaking capacity
• Operating voltage
• Ambient temperature

Never bypass a blown fuse using wire, solder or metal foil. Disconnect the circuit from power before installing or replacing the fuse.

Package Includes

• 1 × 5A 250V Fast-Acting 5×20mm Glass Fuse
• 1 × 5×20mm PCB-Mount Fuse Holder with Cover