MERSEN FUSE 250V FA 0,315 A 5.20 MI5FA25V0,315

MERSEN FUSE 250V FA 0,315 A 5.20 MI5FA25V0,315

Mersen Z084018 high-speed miniature semiconductor fuse, catalogue number MI5FA25V0.315, rated 0.315 A and 250 V AC in a 5 × 20 mm ceramic cartridge format.

SKU: Z084018Alt SKU: MI5FA25V0,315MPN: Z084018
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Manufacturer Lead Time

Sold in packs of 50

£2.56

Why Choose the Mersen Z084018 Miniature Semiconductor Fuse?

The Mersen Z084018 is a compact 5 × 20 mm high-speed semiconductor fuse designed to provide rapid protection for sensitive electronic components and semiconductor devices against damaging overcurrent and short-circuit faults. Also identified by catalogue number MI5FA25V0.315, it has a rated current of 0.315 A and a rated voltage of 250 V AC.

Part of the Mersen FA/FB miniature semiconductor fuse series, the Z084018 features a very fast-acting FA characteristic that rapidly interrupts abnormal currents before excessive electrical energy reaches protected semiconductor devices. This helps minimise thermal stress and improves the reliability of electronic equipment, measuring instruments and control circuits.

Manufactured with a ceramic body and ferrule terminals, the fuse is designed for installation in compatible 5 × 20 mm fuse holders. Its compact dimensions and 10 kA breaking capacity make it suitable for industrial automation, instrumentation, electronic control systems and OEM equipment.

Key Advantages

  • High-speed protection for sensitive semiconductor devices.
  • 0.315 A rated current for precision electronic circuits.
  • 250 V AC rated voltage.
  • Compact 5 × 20 mm ceramic cartridge.
  • 10 kA breaking capacity for dependable fault interruption.
  • Suitable for industrial electronics, instrumentation and control equipment.

Key Features

  • Mersen FA/FB miniature semiconductor fuse series.
  • Item number: Z084018.
  • Catalogue number: MI5FA25V0.315.
  • 0.315 A rated current.
  • 250 V AC rated voltage.
  • Very fast-acting FA characteristic.
  • 5 × 20 mm cylindrical ceramic body.
  • Ferrule terminals for clip mounting.
  • Designed for semiconductor protection.
  • RoHS compliant.

Rapid Protection for Sensitive Electronic Equipment

High-speed semiconductor fuses are designed to interrupt fault currents before excessive energy can damage sensitive electronic components. Their very fast response helps minimise thermal stress and protects semiconductor devices used in industrial automation, instrumentation and electronic control systems.

The Mersen Z084018 combines compact dimensions, ceramic construction and a high breaking capacity, making it an excellent choice for protecting semiconductor devices and precision electronic equipment operating on AC power systems.

Typical Applications

  • Semiconductor protection circuits.
  • Industrial electronic equipment.
  • Power converters and rectifiers.
  • Instrumentation systems.
  • Automation and control equipment.
  • OEM electronic assemblies.

Technical Specifications

Current 315 A
Voltage 250 V
Manufacturer Mersen
Series Semiconductor Miniature Fuses Size 5 × 20 FA/FB 125 V to 250 V
Model Z084018
Catalogue number MI5FA25V0.315
Product type Miniature semiconductor fuse
Fuse size 5 × 20 mm
Rated current 0.315 A
Rated voltage 250 V AC
Electrical system AC
Fuse characteristic High speed (FA)
Pre-arcing I²t 0.016 A²s
Total clearing I²t 0.045 A²s
Breaking capacity 10 kA
Mounting type Clip mounting
Connection type Ferrule
Body material Ceramic
Frequency 50 / 60 Hz
EAN 3605340059809
RoHS compliant Yes
Manufacturer sell-pack quantity 50 pieces
Device Type Fuse link
Fuse Type Miniature, Semiconductor
Fuse Size 5x20 mm

Frequently Asked Questions

What is the Mersen Z084018 used for?

The Z084018 is a very fast-acting miniature semiconductor fuse designed to protect sensitive semiconductor devices and electronic circuits against damaging overcurrent and short-circuit faults.

What are the electrical ratings of the Z084018?

The fuse has a rated current of 0.315 A and a rated voltage of 250 V AC.

What size is the Mersen Z084018?

It is manufactured in the standard 5 × 20 mm cylindrical cartridge format.

What is the interrupting rating of this fuse?

The Mersen Z084018 has a 10 kA breaking capacity for reliable interruption of fault currents.

How is the Z084018 installed?

The fuse uses ferrule terminals and is designed for installation in compatible 5 × 20 mm clip-mounted fuse holders.

Trusted by Electronics and Electrical Professionals

Mersen miniature semiconductor fuses are trusted worldwide by equipment manufacturers, automation engineers and maintenance professionals for rapid fault interruption and dependable protection of sensitive electronic systems.

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