In various low-voltage, high-efficiency application scenarios such as DC-DC converters, power management systems, and portable electronic devices, ROHM's RUL035N02TR, with its low on-resistance, 1.5V drive capability, and built-in G-S protection diode, has been a popular choice for engineers worldwide. However, in the post-pandemic era, global supply chain disruptions and trade frictions have exposed pain points for this imported component: unstable lead times, fluctuating procurement costs, and slow technical support. These issues constrain production schedules and cost control for downstream companies. Given this, domestic substitution has become a necessity for ensuring supply chain security and enhancing competitiveness.
VBsemi, with deep expertise in power semiconductors, introduces the VBK7322 N-channel MOSFET based on independent R&D. This product directly对标es the RUL035N02TR, offering parameter upgrades, technological parity, and full package compatibility. It can serve as a drop-in replacement without circuit modifications, providing a more stable, cost-effective, and locally supported solution for low-voltage systems.
Comprehensive Parameter Surpassing, Enhanced Performance for Demanding Conditions.
Tailored as a domestic alternative to the RUL035N02TR, the VBK7322 achieves significant improvements in key electrical parameters:
Firstly, the drain-source voltage is increased to 30V, 10V higher than the original model's 20V—a 50% improvement. This provides a greater safety margin in applications with voltage fluctuations.
Secondly, the continuous drain current is raised to 4.5A, surpassing the original 3.5A by 28.6%, enabling higher power handling and improved stability.
Thirdly, the on-state resistance is as low as 23mΩ (@10V gate drive), significantly lower than the RUL035N02TR's 43mΩ (@4.5V). This reduction minimizes conduction losses, enhancing overall efficiency and reducing heat generation in high-frequency switching applications.
Additionally, the VBK7322 supports a ±20V gate-source voltage, offering robust gate ESD and noise immunity. The 1.7V gate threshold voltage ensures easy driving compatibility with mainstream ICs, without requiring circuit adjustments.
Enhanced with Advanced Trench Technology, Reliability and Stability Upgraded.
The RUL035N02TR's core advantage lies in its low on-resistance and built-in protection diode. The VBK7322 employs advanced Trench technology, optimizing device reliability and switching performance. It features excellent avalanche energy tolerance and low charge/discharge losses, ensuring stable operation in high-frequency DC-DC converters. The device operates over a wide temperature range and has passed rigorous reliability tests, making it suitable for critical applications like portable devices and industrial controls.
Fully Compatible Package, Enabling Seamless Replacement.
The VBK7322 uses an SC70-6 package, which is pin-to-pin compatible with the RUL035N02TR's TUMT6 package. Engineers can directly replace the component without modifying PCB layout or thermal design, achieving "plug-and-play" convenience. This reduces verification time to 1-2 days, avoids redesign costs, and accelerates time-to-market.
Local Strength Assurance, Dual Peace of Mind for Supply Chain and Support.
Compared to imported components, VBsemi leverages local production bases in China, ensuring stable mass production. Lead times for the VBK7322 are compressed to within 2 weeks, with emergency orders available for rapid delivery. This mitigates risks from supply chain volatility and trade barriers. Moreover, VBsemi provides dedicated technical support, including comprehensive documentation, substitution reports, and 24-hour response for troubleshooting, addressing the slow support of imported brands.
From DC-DC converters and power supplies to battery management and portable electronics, the VBK7322, with its superior parameters, stable performance, package compatibility, controllable supply, and attentive service, has become the preferred domestic alternative to the RUL035N02TR. It has been adopted by leading companies, gaining market recognition. Choosing the VBK7322 is not just a component replacement; it is a strategic move to upgrade supply chain security, optimize costs, and enhance product competitiveness—without R&D risks, while enjoying better performance, stable supply, and prompt support.