In various low-voltage, compact application scenarios such as portable electronic devices, battery-powered systems, signal switching, power management modules, and IoT sensors, ROHM's UM6K31NFHATCN dual N-channel MOSFET, with its small form factor, low on-resistance, and efficient switching performance, has long been a preferred choice for engineers worldwide during design selection. However, against the backdrop of global supply chain uncertainties and rising procurement costs in the post-pandemic era, this imported component has gradually exposed numerous pain points: extended lead times (often 8-12 weeks), prices vulnerable to currency fluctuations, and limited technical support responsiveness. These issues severely constrain downstream companies' production flexibility and cost optimization. Given this industry demand, domestic substitution has transitioned from an "alternative" to a "strategic imperative," becoming a critical path for enterprises to ensure supply chain resilience, reduce dependencies, and enhance market competitiveness.
VBsemi, with years of deep expertise in power semiconductor solutions, has launched the VBK362K dual N-channel MOSFET based on its independent R&D capabilities. This product precisely对标es the UM6K31NFHATCN, offering core advantages of parameter enhancements, technological parity, and full package compatibility. It can serve as a direct replacement without any modifications to the original circuit, providing a more stable, cost-effective, and locally attuned high-quality solution for various low-voltage electronic systems.
Comprehensive Parameter Optimization, Enhanced Performance Margins, Adapting to Diverse Low-Voltage Demands.
Tailored as a domestic alternative to the UM6K31NFHATCN, the VBK362K achieves balanced improvements in key electrical parameters, offering more robust performance guarantees for low-voltage applications:
Firstly, the drain-source voltage is maintained at 60V, matching the original model's rating, ensuring reliable operation in standard low-voltage environments such as battery-operated devices and DC power systems, with sufficient headroom for transient protection.
Secondly, the continuous drain current is increased to 0.3A (300mA), surpassing the original model's 0.25A (250mA)—a 20% enhancement in current-carrying capability. This enables better handling of higher load currents in compact designs, improving system robustness and extending application scope without compromising size constraints.
Thirdly, the on-state resistance is specified at 2500mΩ (@10V gate drive), comparable to the UM6K31NFHATCN's 2.4Ω (2400mΩ), while offering lower resistance at lower gate drives (e.g., @4.5V). This optimization reduces conduction losses in energy-sensitive applications, contributing to improved overall efficiency and longer battery life in portable devices.
Additionally, the VBK362K supports a ±20V gate-source voltage, providing stronger gate ESD protection and noise immunity, crucial for reliable operation in noisy environments. The 1.7V gate threshold voltage design ensures easy drive compatibility with low-voltage microcontrollers and logic circuits, eliminating the need for additional level shifters and simplifying system design.
Enhanced with Advanced Trench Technology, Reliability and Stability Inherited and Upgraded.
The core advantage of the UM6K31NFHATCN lies in its low on-resistance and fast switching characteristics. The VBK362K employs industry-proven Trench gate process technology, building upon the original model's performance while optimizing device reliability across multiple dimensions. The device undergoes rigorous pre-shipment testing, including 100% electrical parameter validation and environmental stress screening, ensuring consistent quality and durability. Through optimized cell design, it achieves low gate charge and reduced switching losses, making it suitable for high-frequency switching applications up to several hundred kilohertz. The VBK362K also features an extended operating temperature range of -55°C to 150°C, capable of withstanding harsh conditions in automotive, industrial, and outdoor settings. Having passed comprehensive reliability tests such as thermal cycling and high-temperature operating life (HTOL), its failure rate meets stringent automotive-grade standards, providing peace of mind for critical applications like medical wearables, automotive modules, and industrial sensors.
Fully Compatible Package, Enabling "Seamless, Risk-Free, and Immediate" Replacement.
For downstream enterprises, a core concern regarding domestic substitution is the R&D investment and time costs involved in the replacement process. The VBK362K fundamentally addresses this pain point through its package design. The device uses an SC70-6 package, which is fully pin-to-pin compatible with the UM6K31NFHATCN's SC70-6 package in terms of pinout, footprint, and dimensions. Engineers need not make any modifications to the original PCB layout or thermal management, achieving a "drop-in" replacement with zero redesign effort. The advantages brought by this high degree of compatibility are evident: on one hand, it slashes substitution verification time, eliminating the need for circuit re-simulation and layout adjustments—sample validation can typically be completed within 1-2 days. On the other hand, it avoids incremental costs from PCB re-spins and assembly retooling, while preserving the original product's mechanical and electrical characteristics. This streamlines the supply chain, enabling enterprises to rapidly adopt domestic alternatives and accelerate time-to-market.
Local Strength Assurance, Dual Peace of Mind for Supply Chain Security and Technical Support.
Compared to the volatile supply chain of imported components affected by international logistics, trade policies, and geopolitical factors, VBsemi leverages China's robust semiconductor ecosystem, with state-of-the-art production facilities and R&D centers in Jiangsu, Guangdong, and other regions. This enables full-process control and stable mass production of the VBK362K. Currently, the standard lead time for this model is compressed to within 10 working days, with expedited orders supporting 48-hour rapid delivery. This effectively mitigates risks associated with global supply disruptions, tariff uncertainties, and logistics delays, ensuring uninterrupted production schedules. Simultaneously, as a local brand, VBsemi boasts a dedicated technical support team offering "responsive and customized" services: providing comprehensive documentation, including substitution guidelines, detailed datasheets, application notes, and reference designs, along with tailored circuit optimization advice based on specific customer needs. For any technical queries during substitution, the support team guarantees a 24-hour response, assisting with on-site or remote troubleshooting. This彻底addresses the pain points of slow support and high communication barriers with imported components, making the substitution journey smooth and confident.
From portable consumer electronics and battery management systems to IoT sensors and automotive control modules; from power switches and load drivers to signal isolation and backup circuits, the VBK362K, with its core strengths of "optimized parameters, enhanced reliability, package compatibility, supply chain control, and attentive service," has become the preferred solution for domestic substitution of the UM6K31NFHATCN. It has already been adopted by leading companies across multiple sectors, earning strong market acclaim. Choosing the VBK362K is not merely a component swap; it is a strategic move for enterprises to fortify supply chain security, reduce total cost of ownership, and boost product competitiveness—requiring no R&D overhaul while benefiting from improved performance, stable supply, and localized support.