The Fast Acting Glass Fuse 5×20mm is a quick-blow electrical protection component designed to interrupt excessive current and help protect electronic circuits, power supplies, electrical equipment and electronic devices from overcurrent conditions. BDTronics offers this 250V glass tube fuse in multiple current ratings, including 2A, 5A, 8A, 10A and 15A, allowing users to select a suitable fuse for their circuit protection requirements.

This BDTronics 5×20mm glass fuse features a compact cylindrical glass body with metal end caps for installation in compatible fuse holders. Its fast-acting response helps disconnect a circuit when current exceeds the fuse's operating characteristics, making it suitable for electronics projects, AC power supplies, DC circuits within rated limits, household electronic equipment and electrical repair work.

Available in different current ratings, this replaceable cartridge fuse is useful for circuit protection in electronic devices, chargers, power adapters, control boards and other equipment requiring a compatible 5×20mm fast-blow fuse.

Features:

• Fast-acting, quick-blow glass tube fuse

• Standard 5×20mm cartridge fuse size

• Rated voltage of 250V

• Available current ratings: 2A, 5A, 8A, 10A and 15A

• Selectable fuse current according to application requirements

• Transparent glass body for visual inspection of the fuse element

• Metal end caps for electrical connection

• Designed to interrupt excessive current

• Helps protect electronic circuits against overcurrent conditions

• Compact design for compatible fuse holders

• Suitable for replacement of matching 5×20mm fuses

• Lead-free construction as specified

• Suitable for electronic equipment and electrical circuit protection

• Convenient for electronics workshops, DIY projects and circuit maintenance

• Available in multiple current ratings for different circuit requirements

Fast-Acting Fuse Operation:

• A fast-acting fuse responds to excessive current by melting its internal fuse element.

• The fuse interrupts the circuit when its operating characteristics are exceeded.

• Fast-blow fuses are useful for protecting circuits that require rapid overcurrent interruption.

• Suitable for applications where a time-delay fuse is not specified.

• The fuse rating should be selected according to equipment requirements, operating current and circuit design.

• A fuse is a sacrificial protection component and must be replaced after it operates.

• Always replace a blown fuse with the same specified current rating, voltage rating, size and appropriate breaking capacity.

Available Current Ratings:

• 2A Glass Fuse: Suitable for compatible low-current electronic circuits and power supply applications.

• 5A Glass Fuse: Suitable for compatible medium-current electronic equipment and power circuits.

• 8A Glass Fuse: Suitable for equipment requiring an 8A fast-acting fuse.

• 10A Glass Fuse: Suitable for compatible higher-current circuits and power equipment.

• 15A Glass Fuse: Suitable for circuits specifically designed for a 15A fuse and a compatible fuse holder.

Select the required current rating when ordering. A higher-rated fuse should not be used as a substitute for a lower-rated fuse unless explicitly permitted by the equipment manufacturer and circuit design.

Applications:

• Electronic circuit protection

• AC power supply protection

• Compatible DC power supply circuits

• Electronic equipment repair

• Battery charger circuits with suitable fuse arrangements

• Inverter and power electronics circuits where the fuse specifications match

• Control boards and electrical equipment

• Laboratory electronics

• DIY electronics projects

• Electronic appliances

• Compatible fuse holders and replacement fuse assemblies

• Workshop electrical repairs

• General overcurrent protection applications

How to Use:

• Check the original equipment specifications to identify the required fuse rating.

• Select the correct current rating: 2A, 5A, 8A, 10A or 15A.

• Confirm that the equipment voltage and circuit requirements are compatible with the 250V fuse rating.

• Switch off and disconnect the equipment from its power source before replacing the fuse.

• Allow capacitors to discharge safely where applicable.

• Remove the damaged fuse from its compatible 5×20mm fuse holder.

• Inspect the fuse holder for signs of overheating, corrosion or damage.

• Install the replacement fuse with secure electrical contact.

• Restore power and verify normal equipment operation.

• If the replacement fuse blows again, investigate the underlying fault instead of installing a higher-rated fuse.

• For mains-powered equipment, use appropriate electrical safety precautions.

Specifications:

• Product Type: Fast-Acting Glass Cartridge Fuse

• Fuse Size: 5×20mm

• Length: Approximately 20mm

• Diameter: Approximately 5mm

• Rated Voltage: 250V

• Available Current Ratings: 2A, 5A, 8A, 10A, 15A

• Fuse Characteristic: Fast Acting / Quick Blow

• Body Material: Glass

• End Cap Material: Metal

• Construction: Cylindrical Glass Tube with Metal End Caps

• Lead-Free: As specified

• Installation Type: Compatible 5×20mm Fuse Holder

• Current Selection: As selected

• Primary Function: Overcurrent Protection

Important Selection Notes:

• Confirm the fuse current rating before ordering.

• Verify the voltage rating, breaking capacity and fast-acting characteristics required by the equipment.

• The 250V marking is the fuse's rated voltage, not the current rating.

• Fuse performance depends on the circuit's fault current and the fuse's specific electrical characteristics.

• Check compatibility with the fuse holder and equipment manufacturer's specifications.

• Do not bypass a fuse or replace it with wire.

• This is a fast-acting fuse, not a time-delay or slow-blow fuse.

Why Buy from BDTronics:

• BDTronics offers electronic components and circuit protection accessories for electronics enthusiasts, technicians, engineers and businesses in Bangladesh.

• Multiple current ratings make it convenient to select a compatible replacement fuse.

• The standard 5×20mm format fits suitable cartridge fuse holders.

• Suitable for electronic prototyping, equipment repair and electrical circuit protection projects.

• BDTronics supplies electronic components, electrical accessories and power electronics products to customers across Bangladesh.

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