Introduction
Power MOSFETs are the crucial "switches" controlling energy flow in modern electronic devices. For a long time, international brands like RENESAS have dominated the market with their classic products, such as the 2SJ687-ZK-E1-AY. However, global supply chain volatility and the need for technological autonomy have made seeking reliable, high-performance domestic alternatives a strategic necessity. Represented by VBsemi's VBE2216, domestic components are now achieving direct benchmarking and even surpassing international classics.
Part 1: Analysis of the Classic Component
RENESAS's 2SJ687-ZK-E1-AY is a P-channel MOSFET with a drain-source voltage of 20V and a continuous drain current of 20A. It features a low on-resistance of 7mΩ at 4.5V, 10A, ensuring efficient power handling in applications such as power management, motor drives, and load switches. Its reliability and performance have made it a standard choice in various designs.
Part 2: Performance Surpassing by the Domestic Challenger
VBsemi's VBE2216 directly benchmarks the 2SJ687-ZK-E1-AY and offers improvements in key parameters:
- Higher Current Capability: Continuous drain current reaches 40A (an increase of 20A), providing greater power handling capacity and robustness.
- Enhanced Voltage Tolerance: Gate-source voltage rating of ±20V ensures wider compatibility and reliability in diverse drive conditions.
- Stable Conduction Performance: Typical on-resistance is 25mΩ at both 2.5V and 4.5V gate drive, offering consistent performance across operating ranges.
- Advanced Technology: Utilizes Trench technology for improved efficiency, switching speed, and thermal management.
- Full Compatibility: Comes in a pin-compatible TO-252 package, enabling direct replacement without PCB modifications.
Part 3: Core Value Beyond Specifications
Choosing a domestic alternative brings deeper advantages:
- Ensuring Supply Chain Security: Reduces dependence on a single international supply chain, ensuring supply stability and production continuity.
- Optimizing Overall Cost: Typically offers better cost competitiveness with equivalent or superior performance, potentially enabling system cost reduction.
- Accessing Rapid Local Support: Domestic suppliers can provide more agile technical support and joint development tailored to actual application scenarios.
- Boosting the Industrial Ecosystem: Every successful application helps the domestic semiconductor industry accumulate experience and iterate technology, forming a virtuous development cycle.
Part 4: A Robust Path for Substitution Implementation
For a smooth transition, the following steps are recommended:
- Detailed Specification Comparison: Carefully compare all key electrical parameters and characteristic curves.
- Rigorous Laboratory Testing: Conduct static parameter tests, dynamic switching tests, temperature rise/efficiency tests, and reliability stress tests.
- Small-Batch Pilot Verification: Trial the component in real products and environments, tracking long-term performance.
- Develop a Switchover and Backup Plan: Implement the substitution gradually after verification is complete, while retaining the original design as a short-term backup.
Conclusion: Moving from "Usable" to "Excellent"
The evolution from the 2SJ687-ZK-E1-AY to the VBE2216 demonstrates that domestic power semiconductors now possess the capability to compete with and even surpass international classics in certain aspects. Adopting such high-performance domestic components is not only a pragmatic choice to address current supply chain challenges but also a strategic move to build an autonomous, resilient, and innovative industrial ecosystem for the future. Now is the opportune time to actively evaluate and introduce high-quality domestic solutions.