High-Voltage Fuse For Automotive Safety

The high-voltage SMD fuse provides overcurrent protection, compact design, and safety for automotive and industrial applications.

Littelfuse, Inc., an industrial technology manufacturer, has introduced the 823A Series Fuse, an AEC-Q200-qualified, high-voltage surface-mount (SMD) fuse with high interrupting ratings. Designed for modern automotive applications, it features a compact 5 x 20 mm footprint and provides reliable overcurrent protection for 1000 Vdc systems.

The series is suitable for automotive and industrial applications, including Battery Management Systems (BMS), Battery Disconnect Units (BDU), high-voltage DC-DC converters, and automotive fuel cell cooling systems.

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The series offers enhanced protection by preventing unintended fuse openings caused by inrush and surge currents. Its compact size supports efficient PCB layouts, while its high voltage durability ensures reliable overcurrent protection in demanding environments. Additionally, it is designed for versatile applications, serving as a primary circuit protection solution in automotive electronics.

With the advancement of automotive electronics, reliable overcurrent protection is essential for ensuring safety and performance. The fuse series helps engineers meet these demands while simplifying design and maximizing space efficiency.

Some of the key features of 823A Series Fuse include:

• AEC-Q200 Qualified: Ensures reliable performance in automotive environments.
• 1000 Vdc Rating: Ideal for high-voltage applications like Battery Disconnect Units (BDUs) and Battery Management Systems (BMS).
• Compact 5 x 20 mm SMD Footprint: Saves space on printed circuit boards (PCs).
• Wide Operating Temperature Range: Operates from -40 ºC to 125 ºC.

“The 823A Series is the first and only small-size SMD fuse from Littelfuse rated for 1000 Vdc,” said Daniel Wang, Senior Director, Littelfuse EBU Global Product Management – OC Business. “This groundbreaking product delivers reliable performance in harsh automotive environments, providing engineers with a compact, robust solution for the next generation of high-voltage applications.”