Introduction
Power MOSFETs serve as essential switches in modern electronics, managing energy flow with precision. For years, international brands like DIODES have set industry standards with components such as the DMTH6015LDVW-13. However, global supply chain disruptions and the push for technological self-reliance have fueled the demand for reliable, high-performance domestic alternatives. Represented by VBsemi’s VBQF3638, domestic solutions are now achieving direct competition and surpassing international benchmarks.
Part 1: Analysis of the Classic Component
DIODES’ DMTH6015LDVW-13 is a dual N-channel MOSFET featuring a 60V drain-source voltage and a continuous drain current of 24.5A. With an on-resistance of 27mΩ at 4.5V and 6A, it balances efficiency and reliability for medium-power applications like motor drives, power tools, and DC-DC converters. Its compact design and performance have made it a popular choice in various electronic designs.
Part 2: Performance Surpassing by the Domestic Challenger
VBsemi’s VBQF3638 directly targets the DMTH6015LDVW-13 and enhances key parameters:
Higher Current Handling: Continuous drain current reaches 25A (an increase of 0.5A), offering improved power capacity for demanding applications.
Optimized Conduction Loss: On-resistance is specified at 28mΩ at 10V, comparable to the classic component, while leveraging advanced Trench technology for lower switching losses and better efficiency.
Full Compatibility: Uses a DFN8(3X3)-B package with a dual N+N configuration, ensuring pin-to-pin replacement without PCB modifications.
Robust Technology: Built on a mature Trench process, it delivers stable performance and high reliability under varying conditions.
Part 3: Core Value Beyond Specifications
Choosing a domestic alternative like VBQF3638 adds deeper strategic benefits:
Ensuring Supply Chain Security: Reduces reliance on international suppliers, mitigating risks and ensuring stable production continuity.
Cost Optimization: Offers competitive pricing with equivalent or superior performance, potentially lowering overall system costs through design simplifications.
Accessing Rapid Local Support: Domestic providers like VBsemi enable faster technical assistance, customized solutions, and collaborative development for specific applications.
Strengthening the Industrial Ecosystem: Each successful adoption supports the growth of domestic semiconductor capabilities, fostering innovation and a virtuous cycle of advancement.
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), and thermal characteristics.
Rigorous Laboratory Testing: Conduct static and dynamic tests, efficiency measurements, temperature evaluations, and reliability stress tests.
Small-Batch Pilot Verification: Implement the component in real-world applications to monitor performance and long-term stability.
Develop a Switchover and Backup Plan: Gradually adopt the substitute after validation, while keeping the original design as a temporary backup.
Conclusion: Moving from "Usable" to "Excellent"
The shift from DMTH6015LDVW-13 to VBQF3638 exemplifies how domestic power semiconductors are not only catching up but excelling in key areas. Adopting such high-performance alternatives is a practical response to supply chain challenges and a strategic step toward building an autonomous, resilient, and innovative industrial future. Now is the time to actively evaluate and integrate quality domestic solutions like VBQF3638.