Littelfuse surface-mount fuses protect electric vehicles

Littelfuse Nano2 885 fuse

Littelfuse has introduced a series of surface-mount fuses with interrupting current ratings up to 1.5kA that are optimised for use in high-voltage automotive applications up to 350V AC or 450-500V DC.

The Nano2 885 fuse can protect electric vehicles against severe fault and short-circuit currents, ensuring reliability in harsh environments. With a low profile and a footprint of 10.86 by 4.78mm, the fuse is claimed to be the smallest surface-mount fuse on the market for 450-500V DC automotive applications, making it suitable for where circuit board space is limited and legacy through-hole fuses are unsuitable.

It is available in current ratings from 1 to 5A.

Typical applications include Li-ion battery packs used in electric vehicles, battery management systems, sense lines, on-board chargers and high-voltage DC-DC converters.

“The 885 series fuse addresses the space limitations common in automotive applications,” said Daniel Wang, director at Littelfuse. “Its solderless platform minimises the risk of nuisance openings due to the mechanical bonding failures typically associated with traditional fuse soldering, ensuring consistent overload performance.”

The solderless platform reduces the risk of nuisance openings due to mechanical bonding failure.

It complies with the automotive qualifications developed by the company based on the AEC-Q200 test plan.

Fuses are available in quantities of 1500 in tape and reel format.

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