Why Choose the Mersen Q076466 MI6FA100V0.63 High Speed Miniature Fuse?
The Mersen Q076466, catalogue reference MI6FA100V0.63, is a compact high speed semiconductor fuse designed to protect sensitive electronic components against overcurrents and short circuits. Its very fast-acting performance helps limit damaging fault energy before it reaches valuable semiconductor devices.
Rated at 0.63 A and 1000 V AC, this miniature fuse is suitable for high-voltage electronic and industrial circuits where rapid fault interruption is essential. It uses a compact 6.3 × 46 mm cylindrical format for installation in a compatible clip-mounted fuse holder.
The Q076466 forms part of Mersen's MI6 FA miniature semiconductor fuse range. Its high breaking capacity, compact dimensions and rapid operating characteristic make it particularly suitable for protecting converters, diodes, thyristors, triacs and other power-electronic components.
Key Advantages
Very fast-acting semiconductor fuse for rapid fault interruption.
0.63 A current rating for sensitive low-current circuits.
1000 V AC voltage rating for high-voltage electronic applications.
Helps minimise damaging energy passed to semiconductor components.
Compact 6.3 × 46 mm cylindrical construction.
Suitable for straightforward installation in compatible fuse clips and holders.
Key Features
Mersen MI6 FA miniature semiconductor fuse series.
Catalogue number: MI6FA100V0.63.
Manufacturer part number: Q076466.
Rated current: 0.63 A.
Rated voltage: 1000 V AC.
High speed FA operating characteristic.
Very high breaking capacity for dependable fault protection.
Clip-mounted cylindrical fuse construction.
No integrated indication system.
UL/CSA recognised range.
Reliable Protection for Power Electronics
Semiconductor devices can be damaged by relatively short-duration overcurrent events. High speed fuses are engineered to interrupt these faults rapidly, reducing the amount of thermal and electrical energy passed through the protected circuit.
The Mersen Q076466 is designed for circuits where conventional general-purpose fuses may not operate quickly enough. Its FA characteristic supports reliable protection of power-electronic components while its 1000 V AC rating makes it suitable for demanding industrial systems.
Typical Applications
Semiconductor power converters.
Diode protection circuits.
Thyristor and triac circuits.
Industrial power electronics.
Electronic power supplies.
Automation and control equipment.
Test and measurement systems.
OEM electronic assemblies.
Technical Specifications
Current
63 A
Voltage
000 V
Manufacturer
Mersen
Series
MI6 FA 1000 V Semiconductor Miniature Fuses
Model
MI6FA100V0.63
Part number
Q076466
Product type
High speed semiconductor miniature fuse
Rated current
0.63 A
Rated voltage
1000 V AC
Electrical system
AC
Speed / characteristic
High speed FA
Fuse size
6.3 × 46 mm
Mounting type
Clip mounting
Clearing I²t at rated voltage
0.35 A²s
Indication system
None
Product weight
Approx. 0.0025 kg
EAN / UPC
3605340017816
Compliance
RoHS, REACH and UKCA declarations available
Frequently Asked Questions
What is the Mersen Q076466 used for?
The Q076466 provides high speed protection for sensitive semiconductor components, including converters, diodes, thyristors and triacs.
What current rating does the Q076466 have?
The Mersen Q076466 has a rated current of 0.63 A.
What voltage is this fuse rated for?
This miniature semiconductor fuse is rated for operation at up to 1000 V AC.
Is the Mersen Q076466 a fast-acting fuse?
Yes. It has a high speed FA characteristic designed to interrupt faults rapidly and protect sensitive power-electronic components.
How is the Q076466 installed?
The fuse has a cylindrical 6.3 × 46 mm format and is designed for clip mounting in a compatible fuse holder.
Trusted by Power-Electronics Engineers Worldwide
Mersen high speed semiconductor fuses are used by equipment manufacturers, automation engineers and maintenance professionals to protect sensitive power-electronic components from damaging fault currents.
Current
63 A
Voltage
000 V
Manufacturer
Mersen
Series
MI6 FA 1000 V Semiconductor Miniature Fuses
Model
MI6FA100V0.63
Part number
Q076466
Product type
High speed semiconductor miniature fuse
Rated current
0.63 A
Rated voltage
1000 V AC
Electrical system
AC
Speed / characteristic
High speed FA
Fuse size
6.3 × 46 mm
Mounting type
Clip mounting
Clearing I²t at rated voltage
0.35 A²s
Indication system
None
Product weight
Approx. 0.0025 kg
EAN / UPC
3605340017816
Compliance
RoHS, REACH and UKCA declarations available
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
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Stock lines ready to ship
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Same day dispatches
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Customers supported
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...
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...