Littelfuse introduces a new family of Pxxx0S3N-A automotive-grade 3kA SIDACtor protection thyristors in DO-214AB (SMC) packages. Designed to provide robust and reliable high inrush current protection for devices operating in harsh environments, this innovative product enables designers to more easily meet regulatory requirements.
Pxxx0S3N-A Automotive Grade 3kA SIDACtor Protection Thyristor Series
The main advantage of the Pxxx0S3N-A series is its high power density design, capable of withstanding surge currents up to 3kA (8/20µs) and voltages up to 6kV with very low clamping voltages. This compact SIDACtor device is available in a DO-214AB (SMC) package, allowing automakers to achieve high power density designs and product miniaturization in automotive electronics.
Developed for pure electric vehicle (BEV) and plug-in hybrid electric vehicle (PHEV) applications, the Pxxx0S3N-A series provides superior transient surge protection for on-board chargers when used in combination with MOVs. By integrating this compact SIDACtor into their systems, automakers can provide more reliable, robust and cost-effective AC power protection for charging systems.
The new 3kA SIDACtor is the first thyristor product in the DO-214AB package to offer 6kV/3kA (8/20µs) surge protection. Previously, achieving such a high surge rating required a larger TO-262 package. This compact SIDACtor easily protects against severe transients and is ideal for exposed applications such as:
- Pure electric vehicles (EV/BEV)
- Plug-in Hybrid Electric Vehicles (PHEV)
- On-Board Chargers (OBC)
- Charging Piles
- Electric vehicle wall chargers
- Energy Storage Systems
Charlie Cai, the director of SBU, product marketing, protection semiconductors, Littelfuse. said:”The Pxxx0S3N-A SIDACtor family is suitable for a variety of market segments including automotive, industrial, and ICT electronics, and is particularly well suited for high inrush current protection in automotive electronics. This automotive-grade SIDACtor series enables product miniaturization and ensures compliance with regulatory requirements and product durability."
This new SIDACtor protection thyristor family offers the following key features and benefits:
- High Surge Protection: capable of handling severe overvoltage transients, protecting equipment from high-energy surge events up to 6kV/3kA while providing very low clamping voltages.
- Automotive Grade: Enables devices to operate perfectly in harsh environments while ensuring compliance with AEC-Q101 standards.
- Compact Design: The DO-214AB package ensures miniaturization without sacrificing durability, while helping designers meet stringent automotive grade requirements.
- Versatile: Although designed primarily for the automotive industry, especially for on-board chargers in BEV and PHEV applications, this SIDACtor family also has potential applications in industrial and ICT electronics.
- Enhanced System Reliability: This compact SIDACtor, combined with the MOV for transient surge protection, promises to be a more reliable and cost-effective on-board charger system.
Comparison with conventional solutions
Conventional solutions often present challenges due to their bulky designs, which can degrade over time, reducing their protection efficacy. The Pxxx0S3N-A is more compact and offers surge ratings that are well suited for highly exposed applications. This is a significant advantage over the Pxxx0FNL 3kA SIDACtor family in a TO-262M package, requiring approximately 50% less PC board space.
This new product represents a leap forward and is the first DO-214AB size on the market capable of handling 6kV/3kA (8/20) surges. Prior to this improvement, achieving this level of protection required a larger TO-262 package.
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