MERSEN FUSE 250V FA 6,3 A 5.20 MI5FA25V6,3

MERSEN FUSE 250V FA 6,3 A 5.20 MI5FA25V6,3

Mersen S084012 high-speed ceramic miniature fuse with a 6.3 A current rating, 250 V AC voltage rating and 5 × 20 mm cartridge format for semiconductor protection.

SKU: S084012Alt SKU: MI5FA25V6,3MPN: S084012
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Why Choose the Mersen S084012 High-Speed Miniature Fuse?

The Mersen S084012 is a premium high-speed ceramic miniature fuse designed to provide rapid overcurrent protection for sensitive electronic components, semiconductor devices and industrial control equipment. Part of the trusted Mersen MI5 FA 250V series, this fuse delivers very fast fault interruption while maintaining excellent reliability in demanding applications.

With a 6.3 A current rating and a 250 V AC voltage rating, the S084012 is engineered for applications where semiconductor devices require protection against damaging overloads and short circuits. Its ultra-fast FA operating characteristic minimises let-through energy, helping extend the life of valuable electronic equipment.

Manufactured with a robust 5 × 20 mm ceramic body, the fuse offers a high breaking capacity and is suitable for installation in compatible clip-mounted fuse holders. It is widely used in power electronics, industrial automation, instrumentation and electronic control systems.

Key Advantages

  • Very fast-acting FA characteristic for semiconductor protection.
  • 6.3 A rated current for industrial and electronic circuits.
  • 250 V AC rated voltage for reliable equipment protection.
  • Compact 5 × 20 mm ceramic fuse.
  • High breaking capacity for enhanced circuit safety.
  • Manufactured by Mersen for dependable long-term performance.

Key Features

  • Mersen MI5 FA 250V series.
  • 6.3 A rated current.
  • 250 V AC IEC rated voltage.
  • Very fast-acting FA operating characteristic.
  • 5 × 20 mm ceramic cartridge construction.
  • Clip mounting installation.
  • Breaking capacity up to 10 kA.
  • UL recognised and RoHS compliant.

Reliable Protection for Semiconductor Devices

Very fast-acting miniature fuses are designed to interrupt fault currents almost instantly, limiting thermal and electrical stress on semiconductor devices and sensitive electronic components. This helps reduce downtime and improve equipment reliability in demanding industrial environments.

The Mersen S084012 combines compact dimensions with excellent fault-clearing capability, making it an ideal choice for power supplies, industrial controls, instrumentation and automation systems where dependable high-speed protection is essential.

Typical Applications

  • Semiconductor protection.
  • Industrial control panels.
  • Power supplies and converters.
  • Electronic instrumentation.
  • Automation equipment.
  • Electronic circuit protection.

Technical Specifications

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Current 6.3 A
Voltage 250 V
Device Type Fuse link
Fuse Type Miniature, Semiconductor
Fuse Size 5x20 mm
Fuse Class Fast acting
Manufacturer Mersen
Series MI5 FA 250V
Model S084012
Catalogue number MI5FA25V6.3
Product type High-speed ceramic miniature fuse
Rated current 6.3 A
Rated voltage 250 V AC
Operating characteristic Very fast-acting FA
Fuse size 5 × 20 mm
Body material Ceramic
Mounting type Clip mounting
Breaking capacity 10 kA
Standards IEC, UL recognised, RoHS compliant
EAN 3605340059625

Frequently Asked Questions

What is the Mersen S084012 used for?

The S084012 is designed to protect semiconductor devices, electronic equipment and industrial control circuits from overloads and short circuits.

What is the current rating of this fuse?

The fuse has a 6.3 A current rating.

What voltage is the Mersen S084012 rated for?

The fuse is rated for operation up to 250 V AC.

Is this a fast-acting fuse?

Yes. The S084012 features a very fast-acting FA characteristic specifically designed for semiconductor protection.

What mounting method does this fuse use?

This version is designed for clip mounting in compatible 5 × 20 mm fuse holders.

Trusted by Industrial Engineers Worldwide

Mersen high-speed miniature fuses are trusted by OEMs, panel builders and maintenance engineers worldwide for protecting sensitive electronic equipment, semiconductor devices and industrial automation systems.