MERSEN FUSE 400V SA 1 A 5.20 MI5SA40V1

MERSEN FUSE 400V SA 1 A 5.20 MI5SA40V1

Mersen J095481 MI5SA40V1 medium time-lag semiconductor miniature fuse rated at 1 A and 400 V AC, featuring a compact 5 x 20 mm cartridge for clip mounting.

SKU: J095481Alt SKU: MI5SA40V1MPN: J095481
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Why Choose the Mersen J095481 Medium Time-Lag Miniature Fuse?

The Mersen J095481, also identified by the catalogue number MI5SA40V1, is a compact semiconductor miniature fuse designed to protect sensitive electronic components and industrial control circuits against damaging overcurrents and short circuits. It forms part of Mersen’s SA range of 5 × 20 mm miniature fuse-links.

Its medium time-lag characteristic allows the fuse to withstand brief inrush and transient currents without unnecessary operation. This makes it particularly suitable for circuits containing capacitors, transformers, power supplies and other components that can draw a temporary surge during start-up or switching.

With a rated current of 1 A, a rated voltage of 400 V AC and a compact 5 × 20 mm cartridge format, the J095481 provides dependable protection in space-restricted electronic and industrial equipment. Its ferrule terminals enable straightforward clip mounting in a compatible fuse holder.

Key Advantages

  • Medium time-lag SA characteristic accommodates brief inrush currents.
  • 1 A rated current for sensitive electronic and control circuits.
  • 400 V AC voltage rating for compatible industrial equipment.
  • Compact 5 × 20 mm cylindrical cartridge format.
  • Very high breaking capacity supports dependable fault interruption.
  • Clip-mounted design allows straightforward installation and replacement.

Key Features

  • Mersen SA semiconductor miniature fuse series.
  • Catalogue number: MI5SA40V1.
  • 1 A rated current.
  • 400 V AC rated voltage.
  • Medium time-lag operating characteristic.
  • Designed for circuits with transient or inrush current conditions.
  • Ferrule terminals for compatible fuse clips and holders.
  • RoHS and REACH-compliant construction.

Reliable Protection with Inrush Current Tolerance

Electronic equipment can draw temporary current peaks when energised or during normal switching operations. The Mersen J095481 uses a medium time-lag fuse element that tolerates these brief surges while remaining capable of disconnecting the circuit during a sustained overload or short-circuit condition.

Its compact 5 × 20 mm cartridge fits compatible fuse clips and holders, making it suitable for industrial controls, power supplies, instrumentation and electronic assemblies. The replaceable clip-mounted design also supports efficient inspection and maintenance.

Typical Applications

  • Industrial control and automation equipment.
  • Semiconductor and electronic component protection.
  • Electronic power supplies and control modules.
  • Transformer and capacitive circuits.
  • Instrumentation and measuring equipment.
  • Circuits subject to transient or inrush currents.

Technical Specifications

Current 1 A
Voltage 400 V
Manufacturer Mersen
Product reference J095481
Catalogue number MI5SA40V1
Product type Semiconductor miniature fuse
Series SA 400 V
Rated current 1 A
Rated voltage 400 V AC
Current type AC
Operating characteristic Medium time-lag
Fuse size 5 × 20 mm
Body format Cylindrical cartridge
Connection type Ferrule terminals
Mounting type Clip mounting
Clearing I²t at rated voltage 1.1 A²s
Indication system None
Breaking capacity Very high breaking capacity
Approximate weight 0.0012 kg
Compliance RoHS and REACH compliant
EAN / UPC 3605340131765
Device Type Fuse link
Fuse Type Miniature, Semiconductor
Fuse Size 5x20 mm
Fuse Class Time delay

Frequently Asked Questions

What is the Mersen J095481 used for?

The Mersen J095481 protects sensitive electronic components, semiconductor circuits and industrial control equipment against sustained overloads and short-circuit faults.

What is the current rating of the J095481 fuse?

The fuse has a rated current of 1 A.

What voltage is the Mersen J095481 rated for?

The J095481 has a rated voltage of 400 V AC.

What does medium time-lag mean?

A medium time-lag fuse tolerates brief inrush or transient currents without operating immediately, while still protecting the circuit against sustained overloads and short circuits.

How is the J095481 installed?

The fuse has ferrule terminals and is designed for clip mounting in a compatible 5 × 20 mm fuse holder.

Trusted Electrical Protection from Mersen

Mersen miniature fuse-links are used by electronic equipment manufacturers, panel builders and automation engineers to provide dependable protection for sensitive industrial and electronic circuits.

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