Introduction
Power MOSFETs are the crucial "switches" controlling energy flow in modern electronic devices. For a long time, international brands like Nexperia have dominated the market with their classic products, such as the BUK7575-100A,127. 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 VBM1104N, domestic components are now achieving direct benchmarking and even surpassing international classics.
Part 1: Analysis of the Classic Component
Nexperia's BUK7575-100A,127 is an N-channel MOSFET with a drain-source voltage of 100V and a continuous drain current of 23A. It features an on-resistance of 187mΩ@10V,13A, offering a balance of voltage withstand and conduction performance for medium-power applications. This component is widely used in areas such as power supplies, motor drives, and industrial controls, serving as a reliable choice in many designs.
Part 2: Performance Surpassing by the Domestic Challenger
VBsemi's VBM1104N directly benchmarks the BUK7575-100A,127 and offers improvements in key parameters:
Higher Current Capacity: Continuous drain current reaches 55A (an increase of 32A), enabling greater power handling and load capability.
Lower Conduction Loss: Typical on-resistance is 36mΩ@10V (significantly lower than 187mΩ), reducing conduction losses and enhancing system efficiency.
Enhanced Voltage Tolerance: Gate-source voltage (VGS) of ±20V and a threshold voltage (Vth) of 1.8V ensure robust operation in diverse conditions.
Full Compatibility: Uses a pin-compatible TO-220 package, allowing direct replacement without PCB modifications.
The device leverages advanced Trench technology, delivering stable and reliable performance.
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 optimization of peripheral designs (e.g., thermal management).
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 BUK7575-100A,127 to the VBM1104N 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.