Why Choose the Mersen T087164 MI5SA25V1.25 Semiconductor Miniature Fuse?
The Mersen T087164 (MI5SA25V1.25) is a compact 5 × 20 mm semiconductor miniature fuse designed to provide reliable overcurrent protection for sensitive electronic components and control apparatus. Part of the Mersen SA/SB 125–250 V miniature fuse range, it combines effective fault protection with a medium time-lag characteristic that accommodates brief current surges during normal equipment operation.
With a rated current of 1.25 A and a rated voltage of 250 V AC, the T087164 is suited to low-current electronic circuits, industrial controls, instrumentation and power supply equipment. Its SA operating characteristic helps prevent unnecessary fuse operation during acceptable start-up currents while still protecting against sustained overloads and short circuits.
The fuse uses a compact clip-mounted cartridge format for installation in compatible 5 × 20 mm fuse holders. Its combination of precise current protection, controlled time-delay performance and space-efficient dimensions makes it a dependable choice for industrial and OEM electronic equipment.
Key Advantages
- Medium time-lag fuse designed for sensitive electronic components.
- 1.25 A rated current for precise circuit protection.
- 250 V AC rated voltage.
- SA characteristic accommodates brief start-up and inrush currents.
- Compact 5 × 20 mm format saves installation space.
- Clip mounting enables straightforward fitting and replacement.
Key Features
- Mersen MI5SA25V1.25 miniature fuse.
- Manufacturer item number: T087164.
- 1.25 A rated current.
- 250 V AC rated voltage.
- Medium time-lag SA operating characteristic.
- 5 × 20 mm miniature cartridge size.
- Clip mounting for compatible fuse holders.
- Designed for semiconductor devices and control apparatus.
- Suitable for circuits subject to brief current surges.
- Compact construction for electronic equipment.
Reliable Protection for Circuits with Inrush Current
Medium time-lag semiconductor fuses are designed to withstand brief current surges that can occur when electronic equipment is energised. This helps reduce nuisance fuse operation while maintaining effective protection against sustained overloads and short-circuit conditions.
The Mersen T087164 is particularly suitable for electronic control circuits, instrumentation, power supplies and automation equipment requiring compact and dependable overcurrent protection.
Typical Applications
- Semiconductor protection circuits.
- Industrial automation equipment.
- Electronic control systems.
- Power supply circuits.
- Instrumentation and measuring equipment.
- OEM electrical and electronic assemblies.
