Littelfuse Introduces First 60VDC Subminiature Surface Mount Fuse With Current Rating of 40A

The new 456 Series 40A fuse offers high-amp circuit protection in a tiny package compatible with faster pick and place electronic assembly processes

2009-05-14 09:00:00

CHICAGO, Illinois, May 14, 2009 – Littelfuse (NASDAQ: LFUS) today announced the launch of a 40A fast-acting subminiature surface mount fuse to serve the need for smaller embedded device protection of higher current applications.

The 456 series 40A NANO^2® fuse is the first 60VDC subminiature surface mount fuse in the market. It is RoHS-compliant, Lead-free and Halogen-free.

Though it measures a small 12 mm X 4.5 mm X 4.5 mm, the 456 Series 40A device offers interrupting ratings up to 600A at 60VDC with high melting I² t value of 454.51 A² secs.

This high-amp circuit protection device in a tiny package is designed for situations where applications require an ultra-small device profile with higher ampere rating.

Conceived as a customized solution for a world leading web server manufacturer, this product is now being offered globally.

In addition to serving as an embedded secondary protection for PC servers, the 456 Series 40A fuse is also targeted at protecting PC server power supplies, voltage regulator modules and cooling fans, as well as base station power supplies, mass storage systems, automotive electronics and other higher current systems.

The 456 Series 40A fuse enables circuit engineers to design-in reliable primary and secondary over-current protection with a single miniature fuse. Beyond the benefit of space-saving design, this fuse is regarded as a more stable, reliable and cost-effective alternative to using similar smaller-amp NANO^2® fuses in tandem. Prior to the introduction of 456 Series 40A fuse, the dual-fuse method was the only way to achieve circuit protection for 40A using NANO^2® fuses.

For more information, please visit the Littelfuse web site at www.littelfuse.com or contact your local Littelfuse Technical Support expert.

Click here for the product specifications

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For circuit protection application design ideas, please visit the new Application Design Center section of the Littelfuse web site.

If you have questions or require technical support please contact the Littelfuse technical support hotline at 1-800-999-9445.


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About Littelfuse
As the worldwide leader in circuit protection products and solutions with annual sales of $531 million in 2008, the Littelfuse portfolio is backed by industry leading technical support, design and manufacturing expertise. Littelfuse products are vital components in virtually every product that uses electrical energy, including automobiles, computers, consumer electronics, handheld devices, industrial equipment, and telecom/datacom circuits. Littelfuse offers Teccor®, Wickmann® and Pudenz® brand circuit protection products. In addition to its Des Plaines, Illinois, world headquarters, Littelfuse has sales, distribution, manufacturing and engineering facilities in Brazil, China, England, Germany, Hong Kong, India, Ireland, Japan, Korea, Mexico, the Netherlands, the Philippines, Singapore, Taiwan and the U.S.

For more information, please visit Littelfuse’s web site at www.littelfuse.com.


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