Littelfuse announced the release of its new 823A Series Fuse, an AEC-Q200-qualified, high-voltage (HV)-rated surface-mount (SMD) fuse with high interrupting ratings. Designed to meet the stringent requirements of modern automotive applications, the 823A Series offers a compact 5 x 20 mm footprint while delivering exceptional overcurrent protection for 1000 Vdc systems.
“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.”
Key differentiators and features of the 823A Series Fuse
The Littelfuse 823A Series stands out for its innovative wire-in-air design, resulting in superior temperature stability, high interrupting ratings (100 A at 1 kV DC), and a high I²t value in a small form factor.
Key features include:
- AEC-Q200 Qualification: Ensures reliability and performance for demanding automotive environments.
- 1000 Vdc Rating: Suitable for high-voltage applications, such as Battery Disconnect Unit (BDU) and Battery Management System (BMS)
- Compact 5 x 20 mm SMD Footprint: Saves printed circuit board (PCB) space, ideal for compact designs.
- Wide Operating Temperature Range: Performs consistently in extreme temperatures from -40 ºC to 125 ºC.
Key benefits of the 823A Series Fuse
- Enhanced System Protection: Prevents nuisance opening caused by high inrush and surge currents.
- Optimized PCB Layout: Space-saving design facilitates integration into compact automotive electronics.
- High Voltage Resilience: Reliable protection against overcurrent events in high-voltage environments.
- Application Versatility: Tailored for primary circuit protection in automotive electronics.
Key markets and applications of the 823A Series Fuse
The 823A Series is particularly suited for automotive and industrial applications, including:
- Battery Management Systems (BMS)
- Battery Disconnect Units (BDU)
- High-voltage DC-DC converters
- Automotive fuel cell cooling systems
These features make the 823A Series indispensable for engineers designing electric vehicles (EVs) and other advanced automotive systems.
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