Why Choose the Mersen H084118 Medium Time-Lag Miniature Fuse?
The Mersen H084118, catalogue reference MI5SA25V0.315, is a compact medium time-lag miniature semiconductor fuse designed to protect sensitive electronic components and control equipment against overcurrent and short-circuit faults. It belongs to Mersen's 5 × 20 mm SA/SB range of semiconductor protection fuses.
Rated at 0.315 A and 250 V AC, the H084118 combines reliable fault protection with the ability to withstand brief current surges. Its medium time-lag characteristic reduces the risk of nuisance operation during temporary inrush conditions while still disconnecting sustained overloads.
The fuse is manufactured in a standard 5 × 20 mm cylindrical format and is designed for clip mounting in a compatible fuse holder. Its compact construction makes it suitable for industrial controls, electronic power supplies, instrumentation and OEM equipment where dependable circuit protection is required.
Key Advantages
- Medium time-lag protection for sensitive electronic components.
- 0.315 A rated current for low-current circuits.
- 250 V AC voltage rating for electronic and industrial equipment.
- Withstands brief inrush currents without unnecessary fuse operation.
- Compact 5 × 20 mm cylindrical construction.
- Clip mounting supports straightforward installation and replacement.
Key Features
- Mersen SA semiconductor miniature fuse series.
- Medium time-lag operating characteristic.
- 0.315 A rated current.
- 250 V AC rated voltage.
- Standard 5 × 20 mm fuse format.
- Clip-mounted connection design.
- Suitable for circuits with temporary start-up or inrush currents.
- Designed for semiconductor devices and control apparatus.
Reliable Protection with Inrush Current Tolerance
Medium time-lag fuses are designed to tolerate brief current increases that may occur when electronic equipment is switched on. This prevents unnecessary fuse replacement while ensuring that sustained overcurrents and short circuits are safely interrupted.
The Mersen H084118 is well suited to control apparatus and semiconductor-based equipment requiring a balance between responsive protection and short-duration surge tolerance. Its industry-standard size also allows convenient integration into compatible fuse holders and electronic assemblies.
Typical Applications
- Industrial electronic control equipment.
- Semiconductor protection circuits.
- Electronic power supplies.
- Instrumentation and measurement systems.
- Automation and machine control equipment.
- OEM electronic assemblies.
