First 2kA protection thyristor in DO-214AB package
Littelfuse has launched the Pxxx0S3G-A SIDACtor Protection Thyristor series, believed to be the industry’s first 2 kA thyristors in a compact DO-214AB (SMC) package.
The new range, designed to safeguard equipment in harsh environments from severe over-voltage transients, enables engineers to achieve greater product miniaturisation while maintaining superior protection and compliance with regulatory standards, according to the company.
“The Pxxx0S3G-A Series delivers robust high surge current protection in a compact package, enabling designers to miniaturize their products without sacrificing reliability or compliance,” said Charlie Cai, director of product marketing, automotive TVS at Littelfuse. “This is especially valuable for applications exposed to high-energy surge events, including onboard chargers, EV charging stations, industrial automation power supplies, and solar inverters.”
The Pxxx0S3G-A Series offers 2 kA (8/20 µs) surge protection in a DO-214AB (SMC) package, the smallest available form factor capable of such high-power density. Compared to traditional solutions requiring a larger TO-262 package, the DO-214AB's compact size allows for easier integration into space-constrained designs, including IoT devices, high-power density industrial equipment, and medical power supplies.
Littelfuse says that unlike legacy solutions that degrade over time, the Pxxx0S3G-A series sustains transients without degradation, ensuring long-term equipment protection and reducing maintenance costs.
The series fully complies with AEC-Q101 standards, making it suitable for automotive applications such as On Board Charger (OBC) protection, BEV/PHEV protection, and automotive battery charging systems.
