Introduction
Power MOSFETs serve as critical switches managing energy flow in modern electronics, especially in demanding sectors like automotive. For years, international brands such as Nexperia have set benchmarks with proven components like the BUK7Y25-60EX. However, global supply chain uncertainties and the pursuit of technological self-reliance have made finding reliable, high-performance domestic alternatives a strategic imperative. Represented by VBsemi’s VBED1606, domestic solutions are now achieving direct competition and outperforming international classics.
Part 1: Analysis of the Classic Component
Nexperia’s BUK7Y25-60EX is a standard-level N-channel MOSFET featuring TrenchMOS technology, with a drain-source voltage of 60V and a continuous drain current of 34A. Its on-resistance is 25mΩ (measured at 10V, 10A), balancing efficiency and robustness. Housed in the LFPAK56 (Power SO8) package, it is designed and qualified under the AEC Q101 standard, making it a trusted choice for high-performance automotive applications, such as motor control, power management, and lighting systems.
Part 2: Performance Surpassing by the Domestic Challenger
VBsemi’s VBED1606 directly targets the BUK7Y25-60EX and demonstrates superior key parameters:
Lower Conduction Loss: On-resistance is significantly reduced to 6.2mΩ (at 10V), compared to 25mΩ, minimizing conduction losses and enhancing system efficiency.
Higher Current Handling: Continuous drain current reaches 64A, nearly double that of the classic component, enabling greater power capacity and reliability.
Full Compatibility: Utilizes the same LFPAK56 package, ensuring pin-to-pin compatibility for seamless replacement without PCB redesign.
Advanced Technology: Built on optimized Trench technology, it ensures stable performance and meets automotive-grade requirements.
Part 3: Core Value Beyond Specifications
Selecting a domestic alternative like VBED1606 offers deeper advantages:
Strengthening Supply Chain Resilience: Reduces dependency on single-source international suppliers, ensuring stable availability and production continuity.
Cost-Effective Optimization: Provides competitive pricing with enhanced performance, potentially lowering overall system costs through simplified thermal design or peripheral components.
Agile Local Support: Domestic suppliers offer faster technical assistance, customization, and collaborative development tailored to specific application needs.
Boosting Industrial Ecosystem: Each successful adoption accelerates the growth of the domestic semiconductor industry, fostering innovation and a virtuous cycle of improvement.
Part 4: A Robust Path for Substitution Implementation
To ensure a smooth transition, follow these steps:
Detailed Specification Comparison: Review all electrical parameters, including VDS, ID, RDS(on), VGS, and thermal characteristics.
Rigorous Laboratory Testing: Conduct static and dynamic tests, switching performance evaluations, temperature rise assessments, and reliability validations under automotive conditions.
Small-Batch Pilot Verification: Test the component in real-world automotive applications, monitoring long-term behavior and compatibility.
Develop a Switchover Plan: Gradually implement the substitution after verification, while keeping the original design as a short-term backup to mitigate risks.
Conclusion: Moving from "Usable" to "Excellent"
The progression from the BUK7Y25-60EX to the VBED1606 illustrates that domestic power semiconductors are now capable of rivaling and exceeding international benchmarks in key areas. Adopting such high-performance domestic components is not only a practical response to supply chain challenges but also a strategic step toward building an autonomous, resilient, and innovative industrial future. Now is the ideal time to actively evaluate and integrate quality domestic solutions like VBED1606.