MERSEN FUSE 250V FA 0,125A. 5X20 AL MI5FAP25V0,125

MERSEN FUSE 250V FA 0,125A. 5X20 AL MI5FAP25V0,125

Mersen M205907 MI5FAP25V0.125 high speed 5 × 20 mm semiconductor miniature fuse rated at 0.125 A and 250 V AC, with axial leads for PCB mounting.

SKU: M205907Alt SKU: MI5FAP25V0,125MPN: M205907
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List Price £7.38 ex VAT
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Why Choose the Mersen M205907 MI5FAP25V0.125 High Speed Axial Lead Fuse?

The Mersen M205907 is a compact 5 × 20 mm high speed miniature fuse designed to protect sensitive semiconductor devices and electronic circuits against damaging overcurrents and short-circuit faults. Part of the Mersen MI5FAP25V0.125 range, it combines a very fast-acting response with axial leads for direct integration into printed circuit boards and electronic assemblies.

Its FA high speed characteristic enables rapid fault interruption before excessive current can damage vulnerable electronic components. This makes the fuse particularly suitable for semiconductor protection, instrumentation, industrial control electronics and power supplies where conventional general-purpose fuses may not respond quickly enough.

With a rated current of 0.125 A and a rated voltage of 250 V AC, the M205907 provides dependable low-current circuit protection. Its axial leads allow straightforward soldering onto PCBs or connection to other components, while its very high breaking capacity supports reliable operation in demanding electronic equipment.

Key Advantages

  • Very fast-acting semiconductor miniature fuse.
  • 0.125 A current rating for sensitive low-current circuits.
  • 250 V AC rated voltage for electronic and industrial equipment.
  • Axial leads enable direct PCB soldering and compact integration.
  • Very high breaking capacity for dependable fault interruption.
  • Compact 5 × 20 mm format for space-constrained assemblies.

Key Features

  • Mersen MI5FAP25V0.125 series.
  • 0.125 A rated current.
  • 250 V AC rated voltage.
  • 5 × 20 mm miniature fuse format.
  • Very fast-acting FA characteristic.
  • Designed for sensitive semiconductor protection.
  • Axial lead mounting for PCB installation.
  • RoHS-compliant construction.

Reliable Protection for Sensitive Electronic Components

High speed semiconductor fuses are engineered to interrupt electrical faults before sensitive electronic devices can suffer permanent damage. Their rapid operating characteristics are particularly important in circuits containing semiconductors, control electronics and precision components with limited tolerance to excessive current.

The Mersen M205907 combines fast fault clearance, compact dimensions and axial lead construction, making it well suited to PCB-mounted equipment where dependable circuit protection and efficient use of installation space are essential.

Typical Applications

  • Semiconductor device protection.
  • Printed circuit boards and electronic assemblies.
  • Industrial automation equipment.
  • Power supplies and control circuits.
  • Instrumentation and measuring equipment.
  • OEM electronic and industrial equipment.

Technical Specifications

Current 125 A
Voltage 250 V
Manufacturer Mersen
Series MI5FA/FB 250 V Axial Lead
Catalogue number MI5FAP25V0.125
Item number M205907
Product type High speed semiconductor miniature fuse
Rated current 0.125 A
Rated voltage 250 V AC
Current type AC
Speed characteristic High speed FA
Fuse dimensions 5 × 20 mm
Mounting type Axial lead mounting
Breaking capacity Very high breaking capacity
RoHS compliant Yes
EAN / UPC 3605340190113
Device Type Fuse link
Fuse Type Miniature, Semiconductor
Fuse Size 5x20 mm

Frequently Asked Questions

What is the Mersen M205907 used for?

The M205907 is used to protect sensitive semiconductor devices, electronic components and PCB-mounted circuits against overcurrent and short-circuit faults.

What is the current rating of the Mersen M205907?

The fuse has a rated current of 0.125 A.

What voltage is the M205907 rated for?

The Mersen M205907 is rated for operation at up to 250 V AC.

What does the FA characteristic mean?

The FA characteristic identifies a high speed fuse designed to interrupt fault currents rapidly and protect sensitive semiconductor and electronic components.

How is the Mersen M205907 installed?

The fuse has axial leads that allow it to be soldered directly onto a printed circuit board or connected within an electronic assembly.

Trusted by Electronics and Automation Engineers Worldwide

Mersen semiconductor miniature fuses are trusted by electronics manufacturers, OEM machine builders and automation engineers to protect sensitive components and maintain reliable equipment operation.

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