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MERSEN FUSE 400V FA 4 A 5.20 MI5FA40V4
Mersen P093347 MI5FA40V4 high-speed 5 × 20 mm ceramic semiconductor fuse rated at 4 A and 400 V AC with a 10 kA minimum interrupting rating.
£2.71
Why Choose the Mersen P093347 High-Speed Semiconductor Miniature Fuse?
The Mersen P093347, catalogue reference MI5FA40V4, is a compact 5 × 20 mm high-speed semiconductor miniature fuse designed to provide rapid overcurrent and short-circuit protection for sensitive electronic components. Its very fast-acting FA characteristic helps limit the electrical and thermal energy passed to semiconductor devices during fault conditions.
Rated at 4 A and 400 V AC, the P093347 offers a high minimum interrupting rating of 10 kA. This makes it suitable for demanding electronic and industrial applications where dependable fault clearance is required to protect valuable power electronic components and control equipment.
The fuse features a robust ceramic body with ferrule terminals and a standard clip-mounted cartridge format. Its compact construction allows straightforward installation in compatible fuse holders used within converters, instrumentation, automation systems, power supplies and OEM machinery.
Key Advantages
- Very fast-acting FA characteristic for semiconductor protection.
- 4 A rated current for electronic and industrial control circuits.
- 400 V AC voltage rating.
- 10 kA minimum interrupting rating for dependable fault clearance.
- Compact 5 × 20 mm ceramic cartridge design.
- Clip mounting supports straightforward installation and replacement.
Key Features
- Mersen semiconductor miniature fuse range.
- Catalogue number: MI5FA40V4.
- 4 A rated current.
- 400 V AC rated voltage.
- 5 × 20 mm fuse dimensions.
- High-speed FA operating characteristic.
- 10 kA minimum interrupting rating.
- Ceramic insulating body with ferrule terminals.
- RoHS-compliant construction.
Rapid Protection for Sensitive Electronics
High-speed semiconductor fuses are engineered to disconnect excessive current more rapidly than general-purpose fuses. This fast response helps reduce the let-through energy reaching vulnerable components such as diodes, thyristors, triacs and other semiconductor devices.
The Mersen P093347 combines a very fast operating characteristic with ceramic construction and a high interrupting rating. These features make it a dependable protection solution for industrial equipment where rapid fault clearance and reliable circuit isolation are essential.
Typical Applications
- Semiconductor device protection.
- Power converters and rectifier circuits.
- Industrial automation equipment.
- Electronic instrumentation.
- Power supplies and control circuits.
- OEM machinery and electronic assemblies.
Technical Specifications
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| Current | 4 A | |
|---|---|---|
| Voltage | 400 V | |
| Device Type | Fuse link | |
| Fuse Type | Miniature, Semiconductor | |
| Fuse Size | 5x20 mm | |
| Manufacturer | Mersen | |
| Series | Semiconductor Miniature Fuses Size 5 × 20 FA 400 V | |
| Model | P093347 | |
| Catalogue number | MI5FA40V4 | |
| Product type | High-speed semiconductor miniature fuse | |
| Rated current | 4 A | |
| Rated voltage | 400 V AC | |
| Current type | AC | |
| Fuse size | 5 × 20 mm | |
| Operating characteristic | High speed, FA | |
| Minimum interrupting rating | 10 kA | |
| Melting I²t | 4.6 A²s | |
| Clearing I²t at rated voltage | 18.7 A²s | |
| Mounting type | Clip mounting | |
| Terminal type | Ferrule | |
| Body material | Ceramic | |
| Product diameter | approximately 5 mm | |
| Product length | approximately 20 mm | |
| Compliance | RoHS compliant | |
| EAN | 3605340117646 |
Frequently Asked Questions
What is the Mersen P093347 used for?
The P093347 provides high-speed overcurrent and short-circuit protection for semiconductor devices, sensitive electronic components and industrial control equipment.
What is the current rating of the Mersen P093347?
The fuse has a rated current of 4 A.
What voltage is the P093347 rated for?
The Mersen P093347 is rated for operation at up to 400 V AC.
What does the FA fuse characteristic mean?
The FA characteristic identifies a high-speed, very fast-acting fuse designed to interrupt fault currents rapidly and limit the energy passed to sensitive semiconductor components.
How is the Mersen P093347 installed?
It is a 5 × 20 mm ferrule cartridge fuse designed for clip mounting in a compatible miniature fuse holder.
Trusted Semiconductor Protection from Mersen
Mersen high-speed miniature fuses are used by automation engineers, electronic equipment manufacturers and machine builders to provide dependable protection for sensitive semiconductor devices and industrial control equipment.
