In low-voltage, high-current application scenarios such as power management, motor driving, battery protection, and load switching, Renesas' UPA622TT-E1-A, with its balanced performance in current handling and on-resistance, has been a common choice for designers. However, in the context of global supply chain uncertainties and extended lead times for imported components, reliance on such parts exposes projects to risks of procurement delays, cost volatility, and limited technical support. This has driven the urgent need for a reliable, high-performance domestic alternative that ensures supply chain security and design continuity.
Responding to this demand, VBsemi introduces the VBK7322 N-channel MOSFET, developed through in-house R&D and tailored as a pin-to-pin replacement for the UPA622TT-E1-A. With superior electrical characteristics, full package compatibility, and enhanced reliability, the VBK7322 provides a seamless, efficient, and cost-effective solution for modern low-voltage power designs.
Performance Enhanced for Higher Efficiency and Robustness
Designed as a direct alternative to the UPA622TT-E1-A, the VBK7322 delivers significant improvements in key parameters, ensuring higher system efficiency and stronger operational reliability:
The device maintains the same drain-source voltage rating of 30V, ensuring full compatibility in low-voltage applications. With a continuous drain current of 4.5A, it meets a wide range of power switching requirements while offering an optimized thermal profile.
A standout feature is its exceptionally low on-resistance—only 23mΩ at a 10V gate drive—significantly lower than the 139mΩ (at 4.0V) of the UPA622TT-E1-A. This reduction dramatically decreases conduction losses, improves energy efficiency, and reduces heat generation, allowing for more compact designs and relaxed thermal management.
The VBK7322 also supports a gate-source voltage range of ±20V, offering strong noise immunity and ESD protection in electrically noisy environments. The 1.7V gate threshold voltage ensures easy driving compatibility with common logic-level controllers, facilitating straightforward integration without circuit modifications.
Advanced Trench Technology for Reliable Switching Performance
The VBK7322 employs advanced Trench MOSFET technology, which ensures low on-resistance, fast switching speed, and excellent thermal stability. This technology enables the device to achieve high efficiency and reliability in high-frequency switching applications. Through rigorous manufacturing controls and 100% automated testing, the VBK7322 guarantees consistent performance and long-term durability under demanding conditions.
Full Package Compatibility for Drop-In Replacement
The VBK7322 is offered in an SC70-6 package, which is mechanically and electrically identical to the UPA622TT-E1-A. This complete pin-to-pin and footprint compatibility allows engineers to replace the existing component directly on the PCB without any layout changes, thermal redesign, or firmware adjustments. This “plug-and-play” substitution significantly reduces validation time, eliminates re-tooling costs, and accelerates time-to-market for product upgrades or new designs.
Stable Supply and Local Technical Support
Leveraging VBsemi’s localized manufacturing and supply chain network, the VBK7322 ensures short lead times, stable pricing, and reduced exposure to international trade fluctuations. With streamlined production and inventory management, samples and production quantities are readily available, greatly enhancing supply chain resilience.
Moreover, VBsemi provides dedicated local technical support, including detailed datasheets, application notes, reference designs, and hands-on assistance for substitution validation. Engineers can access prompt, personalized guidance to ensure smooth integration and optimal performance in their specific applications.
Conclusion
From portable devices and battery-powered systems to DC-DC converters and automotive auxiliary controls, the VBK7322 stands out as a high-performance, highly reliable domestic alternative to the UPA622TT-E1-A. With its lower on-resistance, improved efficiency, full package compatibility, and secured supply chain, the VBK7322 enables designers to enhance product performance while mitigating sourcing risks. Choosing the VBK7322 is not just a component substitution—it’s a strategic move toward greater design independence, cost efficiency, and long-term supply stability.