Why Choose the Mersen P078903 Medium Time-Lag Fuse?
The Mersen P078903, catalogue number MI6SA40V0.16, is a compact semiconductor miniature cartridge fuse designed to protect sensitive electronic components and control apparatus against damaging overcurrents. Its medium time-lag SA characteristic allows brief, harmless current surges to pass while providing reliable interruption of sustained overloads and short circuits.
Rated at 0.16 A and 400 V AC, the P078903 is suitable for low-current electronic circuits, industrial automation equipment, measuring instruments and control systems. Its standard 6.3 × 32 mm cylindrical format enables straightforward installation in compatible clip-mounted fuse holders.
As part of Mersen’s semiconductor miniature fuse range, the P078903 combines compact dimensions with very high breaking capacity and dependable surge tolerance. It is an effective protection solution for OEM equipment and industrial electronic systems that experience temporary inrush currents during normal operation.
Key Advantages
- Medium time-lag SA characteristic tolerates brief current surges.
- 0.16 A current rating for sensitive low-current circuits.
- 400 V AC voltage rating for industrial electronic equipment.
- Compact 6.3 × 32 mm cylindrical cartridge format.
- Very high breaking capacity supports dependable fault interruption.
- Designed for clip mounting in compatible miniature fuse holders.
Key Features
- Mersen semiconductor miniature fuse range.
- MI6SA40V0.16 catalogue reference.
- 0.16 A rated current.
- 400 V AC rated voltage.
- Medium time-lag SA operating characteristic.
- 6.3 × 32 mm cartridge dimensions.
- Clip-mounted cylindrical construction.
- Designed for sensitive electronic components and control apparatus.
Reliable Protection with Surge Tolerance
Electronic equipment can draw a temporary surge of current when switched on or when internal components are energised. The medium time-lag characteristic of the Mersen P078903 allows these brief operating surges without unnecessary fuse operation while still responding to prolonged overloads and short-circuit faults.
Its compact cartridge format and 400 V AC rating make it suitable for industrial equipment where installation space is limited and dependable protection is essential. When installed in a correctly rated fuse holder, the P078903 helps protect sensitive components, improve equipment reliability and reduce unplanned downtime.
Typical Applications
- Industrial electronic control circuits.
- Semiconductor device protection.
- Automation and monitoring equipment.
- Electronic power supplies.
- Test and measurement instruments.
- OEM electrical and electronic assemblies.
