Introduction
Power MOSFETs serve as essential switches managing energy flow in modern electronics, with international brands like AOS traditionally leading the market through components such as the AONS62922. However, supply chain uncertainties and the push for technological self-reliance have made seeking high-performance domestic alternatives a critical strategy. Represented by VBsemi's VBGQA1107, domestic MOSFETs are now enabling direct substitution and even surpassing international benchmarks.
Part 1: Analysis of the Classic Component
AOS's AONS62922 is an N-channel MOSFET featuring a drain-source voltage of 120V and a continuous drain current of 85A, with a low threshold voltage of 1.4V. It is commonly used in high-current applications like power supplies, motor drives, and industrial systems, valued for its balance of voltage tolerance and current handling.
Part 2: Performance Surpassing by the Domestic Challenger
VBsemi's VBGQA1107 directly substitutes the AONS62922 and demonstrates enhanced key parameters:
Lower Conduction Loss: With an on-resistance of just 7.4mΩ (at 10V VGS), it significantly reduces conduction losses, improving system efficiency and thermal performance.
Optimized Voltage and Current: While VDS is 100V (suitable for many applications), it maintains a high continuous drain current of 75A, ensuring robust power delivery in comparable scenarios.
Advanced Technology: Utilizes SGT (Shielded Gate Transistor) technology, which enhances switching performance and reliability.
Package Compatibility: Comes in a DFN8(5X6) package, facilitating easy PCB integration and replacement without design changes.
Part 3: Core Value Beyond Specifications
Selecting this domestic alternative offers deeper advantages:
Supply Chain Resilience: Reduces dependency on global suppliers, ensuring stable availability and production continuity.
Cost-Effectiveness: Provides competitive pricing with superior performance in areas like low on-resistance, potentially lowering overall system costs.
Localized Support: Domestic suppliers like VBsemi offer responsive technical assistance and customization for specific application needs.
Industry Ecosystem Growth: Each successful adoption strengthens the domestic semiconductor sector, fostering innovation and a virtuous cycle of development.
Part 4: A Robust Path for Substitution Implementation
For a smooth transition, follow these steps:
Detailed Specification Review: Compare all electrical parameters, including VDS, ID, RDS(on), and switching characteristics.
Comprehensive Lab Testing: Conduct static and dynamic tests, efficiency measurements, and thermal assessments under real-world conditions.
Pilot Batch Validation: Test the VBGQA1107 in actual products to monitor performance and reliability over time.
Phased Implementation Plan: Gradually integrate the substitute after verification, while keeping the original design as a temporary backup.
Conclusion: Moving from "Usable" to "Excellent"
The shift from the AONS62922 to the VBGQA1107 illustrates that domestic power MOSFETs are now capable of competing with and outperforming international classics in key aspects like efficiency and technology. 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. The time is ripe to actively evaluate and integrate quality domestic solutions like the VBGQA1107.