Mersen Y089468 FD20GC150V4 Protistor high-speed cylindrical gR fuse-link rated at 4 A and 1500 V DC for semiconductor and high-voltage DC circuit protection.
£117.31
The Mersen Y089468, catalogue reference FD20GC150V4, is a high-speed cylindrical fuse-link designed to protect sensitive semiconductor devices and high-voltage DC electrical equipment. Part of the Mersen Protistor® 20 × 190 mm fuse range, it provides rapid fault interruption for power electronic systems where conventional industrial fuses may not operate quickly enough.
This fuse features a gR full-range operating characteristic, providing protection against both overload currents and short-circuit faults. Its low energy let-through helps limit thermal and electrical stress on semiconductor components, supporting improved equipment reliability and reduced risk of costly component damage.
With a rated current of 4 A and a rated operating voltage of 1500 V DC, the Y089468 is suitable for low-current circuits within industrial converters, railway equipment, renewable energy installations and other high-voltage DC systems. Its robust 20 × 190 mm cylindrical format enables installation in compatible fuse holders or mounting clips.
High-speed semiconductor fuses are engineered to interrupt fault currents before excessive energy can pass through sensitive electronic components. The Mersen Y089468 helps protect diodes, thyristors, rectifiers and other semiconductor devices against damaging overload and short-circuit conditions.
Its 1500 V DC rating makes it suitable for modern power conversion and transportation systems operating at elevated DC voltages. The gR characteristic delivers full-range protection, helping improve system availability while reducing the potential for secondary damage within electrical assemblies.
| Voltage | 150 V |
|---|---|
| Manufacturer | Mersen |
| Series | Protistor® 20 × 190 gR |
| Model | Y089468 |
| Catalogue reference | FD20GC150V4 |
| Product type | High-speed cylindrical semiconductor fuse-link |
| Rated current | 4 A |
| Rated voltage | 1500 V DC |
| Operating characteristic | gR |
| Current type | DC |
| Fuse size | 20 × 190 mm |
| Connection type | Cylindrical ferrule |
| Mounting type | Fuse holder / clip mounting |
| Body construction | Ceramic cylindrical body |
| Protection application | Semiconductor and power electronic circuits |
The Mersen Y089468 is used to protect sensitive semiconductor components and high-voltage DC circuits against overloads and short-circuit faults.
The Y089468 has a rated current of 4 A.
This fuse is rated for operation at up to 1500 V DC.
A gR fuse provides high-speed, full-range protection against both overload currents and short-circuit faults, making it suitable for protecting semiconductor devices.
The fuse has a cylindrical format measuring approximately 20 × 190 mm and is installed in a compatible fuse holder or mounting clip.
Mersen Protistor® fuse-links are widely used by industrial engineers, equipment manufacturers and transportation specialists to provide dependable high-speed protection for semiconductor and high-voltage DC systems.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...