MERSEN FUSE 400V SA 1 A 6.32 MI6SA40V1

MERSEN FUSE 400V SA 1 A 6.32 MI6SA40V1

Mersen X078910 MI6SA40V1 semiconductor miniature fuse with a 1 A current rating, 400 V AC voltage rating, medium time-lag SA characteristic and 6.3 x 32 mm ceramic body.

SKU: X078910Alt SKU: MI6SA40V1MPN: X078910
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Manufacturer Lead Time

Sold in packs of 50

£2.78

Why Choose the Mersen X078910 Semiconductor Miniature Fuse?

The Mersen X078910, catalogue number MI6SA40V1, is a semiconductor miniature fuse engineered to provide dependable overcurrent protection for sensitive electronic equipment, semiconductor devices and industrial control circuits. As part of Mersen's 6.3 × 32 mm SA 400 V miniature fuse range, it features a medium time-lag (SA) characteristic that accommodates normal inrush currents while protecting against sustained overloads and short circuits.

With a rated current of 1 A and a rated operating voltage of 400 V AC, the X078910 is ideal for industrial electronics, instrumentation, automation equipment and power supplies. Its ceramic construction provides excellent thermal and electrical performance while maintaining a compact footprint for installations where panel space is limited.

Designed for clip mounting, the fuse incorporates ferrule terminals for secure installation in compatible fuse holders. A 200 kA breaking capacity together with controlled pre-arcing and clearing I²t characteristics provides dependable protection for sensitive electronic and semiconductor-based systems.

Key Advantages

  • Designed for semiconductor and sensitive electronic circuit protection.
  • 1 A current rating for industrial electronic applications.
  • 400 V AC rated voltage.
  • Medium time-lag SA characteristic accommodates normal inrush currents.
  • Compact 6.3 × 32 mm ceramic cartridge design.
  • 200 kA breaking capacity for dependable fault interruption.
  • Clip mounting enables straightforward installation and replacement.
  • RoHS and UKCA compliant.

Key Features

  • Mersen 6.3 × 32 mm SA semiconductor fuse series.
  • Catalogue number: MI6SA40V1.
  • 1 A rated current.
  • 400 V AC rated voltage.
  • Medium time-lag SA operating characteristic.
  • 6.3 × 32 mm ceramic cartridge.
  • Clip mounting with ferrule terminals.
  • Pre-arcing I²t: 0.26 A²s.
  • Clearing I²t: 0.6 A²s.
  • RoHS compliant.

Reliable Protection for Electronic Equipment

The Mersen X078910 is designed to protect semiconductor devices and electronic assemblies by combining a medium time-lag operating characteristic with dependable fault interruption. It accommodates normal equipment start-up currents while providing reliable protection against sustained overloads and short circuits.

Its ceramic construction, compact dimensions and controlled I²t characteristics make it well suited to industrial automation equipment, instrumentation, power supplies and electronic control systems where dependable circuit protection is essential.

Typical Applications

  • Semiconductor protection.
  • Industrial electronic equipment.
  • Automation and control systems.
  • Power supplies.
  • Instrumentation equipment.
  • Electronic control circuits.
  • OEM machinery.
  • Industrial power electronics.

Technical Specifications

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Current 1 A
Voltage 400 V
Device Type Fuse link
Fuse Type Miniature, Semiconductor
Fuse Size 6.3x32 mm
Fuse Class Time delay
Manufacturer Mersen
Item number X078910
Catalogue number MI6SA40V1
Product type Semiconductor miniature fuse
Series 6.3 × 32 mm SA 400 V
Rated current 1 A
Rated voltage 400 V AC
Current type AC
Characteristic Medium time-lag (SA)
Fuse size 6.3 × 32 mm
Mounting type Clip mounting
Terminal type Ferrule
Body material Ceramic
Breaking capacity 200 kA
Pre-arcing I²t 0.26 A²s
Clearing I²t 0.6 A²s
Standard pack quantity 50 pieces
EAN 3605340032734
RoHS compliant Yes
UKCA compliant Yes

Frequently Asked Questions

What is the Mersen X078910 used for?

The X078910 protects semiconductor devices and sensitive electronic circuits from overcurrent and short-circuit faults.

What is the current rating of the X078910?

This fuse has a rated current of 1 A.

What voltage is the fuse rated for?

The Mersen X078910 is rated for operation at up to 400 V AC.

What type of operating characteristic does it have?

The fuse features a medium time-lag (SA) characteristic, allowing normal inrush currents while protecting against sustained overloads.

How is the fuse installed?

The X078910 is designed for clip mounting in compatible 6.3 × 32 mm fuse holders.

Trusted by Electrical and Automation Professionals

Mersen semiconductor miniature fuses are trusted worldwide by machine builders, panel manufacturers and automation engineers for protecting sensitive electronic equipment and industrial power electronics.