Mersen MI5FA40V1 1A 5×20mm High-Speed Fuse
● Check availabilityReview the selection data for Mersen MI5FA40V1, a 1A 5×20mm high-speed fuse rated 400 VAC, including its rated current, voltage and mounting format for technical purchasing.

Review the selection data for Mersen MI5FA40V1, a 1A 5×20mm high-speed fuse rated 400 VAC, including its rated current, voltage and mounting format for technical purchasing.
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Mersen MI5FA40V1 is a 1A 5×20mm high-speed fuse in the 5FA family, rated 400 VAC. Its ferrule / clip configuration supports power electronics, pcb protection. Designed for precise circuit protection, the model is intended for designers who need a verified series, rating and form factor rather than a generic fuse. Use the exact part number when checking compatibility with installed fuse blocks or holders. The page is structured around the exact Mersen catalog number for easier procurement.