Littelfuse, Inc., an industrial technology manufacturing company, has introduced the Nano 415 SMD Series Fuse, its first surface-mount fuse with a 1500 A interrupting rating at 277 V.
Designed for use in 250-V systems with unpredictable voltage fluctuations, the 415 Series provides fault current protection in a compact SMD package.
The new fuse is especially relevant for electric vehicle (EV) applications, including home chargers and EV charging stations, where fault current protection and assembly efficiency are key design priorities. Its surface-mount format also supports full automation in manufacturing, enabling a transition from legacy through-hole solutions.
Technical features
- 1500 A interrupting rating at 277-V supports protection in higher fault current environments
- 277-V rated voltage allows for stable buffering in 250-V systems with fluctuating voltages
- High I²t values improve surge and pulse withstand capabilities over comparable components
- Surface-mount design enables automated assembly and minimizes board footprint.
Applications
- Electric vehicles – EV charging stations and home charging equipment
- Industrial electronics – Power inverters, converters, and instrumentation
- Consumer power systems – Adapters, chargers, and compact power supplies
- Smart home infrastructure – Home control systems
The 415 Series also serves as a surface-mount alternative to the Littelfuse 215 Cartridge Series, providing a higher voltage rating (277 vs. 250 V) in a smaller form factor. It supports circuit protection requirements in a wide range of industries while offering compatibility with automated production environments.
Filed Under: Charging, Technology News