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Littelfuse Corporation (NASDAQ: LFUS) has launched the Nano2 415 SMD series of fuses. This product is Littelfuse's first surface mount fuse, with A rated breaking current of 1500 A at 277 V. The 415 series is designed to provide true buffering for 250V applications with unpredictable voltage fluctuations. The compact SMD package offers excellent fault current protection and is an ideal choice for space-constrained applications. 

This new type of fuse is our first one with A high rated breaking current of 1500 A at 277 V, providing electronic designers who use traditional through-hole solutions with the option to switch to SMD components. Daniel Wang, senior director of Product management for overcurrent passive components at Littelfuse, said, "In this way, they can achieve full automation of the assembly process, thereby improving production efficiency and reducing manufacturing costs."

Main features and advantages:

• Industry-leading breaking rating: The Nano2 415 series has A rated breaking current of 1500 A at 277 V, effectively preventing high fault currents in critical applications.

Optimized for voltage fluctuation environments: With a rated voltage of 277 V, it provides true buffering in 250 V applications, protecting against unpredictable surges.

• Enhanced surge tolerance: Compared with competing solutions, a higher I2t value can provide better surge and impulse tolerance.

• Compact surface mount design: The SMD form factor enables engineers to replace through-hole fuses, simplifying the automated assembly process and reducing overall production costs.

Ideal choice for high-performance applications:

The Nano2 415 SMD series is highly suitable for various applications, including:

• Consumer electronics: power adapters, chargers and power supplies

• Industrial systems: inverters, converters and instruments

• Automobiles: Electric vehicle charging stations, home chargers and lighting equipment

• Household appliances/white goods: washing machines, dryers and refrigerators

• Home automation: Automatic garage doors and smart home systems

The competitive advantages of fuse technology

The 415 series can directly replace other fuses on the market and offer a higher I2t value to achieve stronger surge tolerance. Furthermore, it can also serve as an SMD alternative to the Littelfuse 215 tubular fuse series, providing a higher rated voltage (277 V compared to 250 V), while replacing the existing through-hole tubular fuse solutions. By transitioning to SMD fuses, electronic engineers can fully automate the manufacturing process, thereby accelerating production speed, increasing output and reducing labor costs, ultimately making their end products more competitive in the market.

Supply situation

The 415 series SMD fuses are available in tape and roll packaging, with a minimum order quantity of 1,500 pieces. Sample requests are accepted through globally authorized Littelfuse distributors. For the list of authorized Littelfuse distributors, please visit Littelfuse.com.

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