MERSEN FUSE 400V SA 1 A 5.20 MI5SA40V1

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.