MERSEN FUSE 250V SB 0,063 A 5.20 MI5SB25V0,063

Why Choose the Mersen F080482 Miniature Semiconductor Fuse?

The Mersen F080482, catalogue reference MI5SB25V0.063, is a compact medium time-lag miniature semiconductor fuse designed to protect sensitive electronic components, control apparatus and low-current circuits from damaging overcurrents. It forms part of Mersen’s 5 × 20 mm SA/SB semiconductor fuse range, developed to provide dependable protection while tolerating short-duration current surges.

With a rated current of 0.063 A and a rated voltage of 250 V AC, the F080482 is suitable for precision electronic circuits that require protection at very low current levels. Its SB medium time-lag characteristic allows temporary inrush or transient currents to pass without unnecessary fuse operation while still responding reliably to sustained overloads and short circuits.

The fuse features a standard 5 × 20 mm cylindrical format with ferrule ends for clip mounting in a compatible fuse holder. Its compact dimensions make it suitable for industrial controls, instrumentation, electronic power supplies and other equipment where installation space is limited.

Key Advantages

• Compact semiconductor protection fuse for sensitive electronic circuits.
• 0.063 A current rating for precise low-current protection.
• 250 V AC rated voltage.
• Medium time-lag characteristic withstands short-duration inrush currents.
• Standard 5 × 20 mm fuse dimensions.
• Ferrule construction enables straightforward clip mounting.
• Helps protect semiconductor devices and control apparatus from sustained overcurrents.
• RoHS-compliant construction for modern electrical equipment.

Key Features

• Mersen SA/SB miniature semiconductor fuse series.
• 0.063 A rated current.
• 250 V AC rated voltage.
• Medium time-lag SB operating characteristic.
• 5 × 20 mm cylindrical fuse size.
• Ferrule ends for clip-mounted fuse holders.
• Designed for circuits with transient or inrush current conditions.
• Clearing I²t of approximately 0.0016 A²s at rated voltage.
• No integrated fuse indication system.

Reliable Protection for Circuits with Transient Currents

Medium time-lag fuses are designed to tolerate temporary current increases that occur during equipment start-up, capacitor charging or other normal transient conditions. This helps prevent nuisance operation while ensuring the fuse disconnects the circuit when a sustained overload or short circuit occurs.

The Mersen F080482 combines a very low current rating with a compact clip-mounted design, making it suitable for sensitive electronic and control circuits. Its SB characteristic provides a practical balance between surge tolerance and dependable semiconductor protection.

Typical Applications

• Semiconductor device protection.
• Electronic control apparatus.
• Industrial automation equipment.
• Instrumentation and measurement systems.
• Electronic power supplies.
• Printed circuit board assemblies with fuse holders.
• Circuits exposed to temporary inrush currents.
• Low-current electronic equipment.