In various high-voltage, high-current application scenarios such as industrial motor drives, switch-mode power supplies, welding equipment, UPS systems, and renewable energy inverters, Littelfuse IXYS's IXFH70N65X3, with its high voltage rating and low on-resistance, has been a preferred choice for engineers worldwide. However, in the post-pandemic era marked by global supply chain disruptions and trade uncertainties, this imported component faces persistent pain points: extended lead times (often several months), cost volatility due to exchange rate fluctuations, and delayed technical support responses. These challenges severely impact production schedules and cost control for downstream enterprises. As a result, domestic substitution has transitioned from an "option" to a "necessity," becoming a critical path for ensuring supply chain security, reducing costs, and enhancing core competitiveness.
VBsemi, leveraging years of deep expertise in power semiconductors, introduces the VBP16R67S N-channel power MOSFET based on its proprietary SJ_Multi-EPI technology. This product is precisely tailored as a direct alternative to the IXFH70N65X3, offering core advantages of parameter enhancements, technological parity, and full package compatibility. It serves as a drop-in replacement without any modifications to existing circuits, delivering a more stable, cost-effective, and locally attuned high-quality solution for demanding high-voltage electronic systems.
Comprehensive Parameter Advantages, Superior Performance, Adapting to More Demanding Conditions.
Designed as a domestic alternative to the IXFH70N65X3, the VBP16R67S achieves significant improvements in key electrical parameters, providing robust performance guarantees for high-voltage, high-current applications:
Firstly, the drain-source voltage is rated at 600V, which, while slightly lower than the original model's 650V, remains fully sufficient for most industrial applications with proper design margins and offers excellent reliability in standard operating conditions. The continuous drain current is 67A, closely matching the original 70A, ensuring high current-carrying capability for power-intensive circuits without compromise.
Secondly, the on-state resistance is as low as 34mΩ (@10V gate drive), a substantial 23% reduction compared to the IXFH70N65X3's 44mΩ. This significantly lowers conduction losses, directly improving overall system efficiency and reducing heat generation, which alleviates cooling system design pressure and operational costs.
Additionally, the VBP16R67S supports a ±30V gate-source voltage, providing enhanced gate ESD protection and noise immunity, effectively preventing accidental turn-on in complex electromagnetic environments. The 3.5V gate threshold voltage balances drive convenience and switching reliability, seamlessly compatible with mainstream driver ICs without requiring circuit adjustments, further simplifying the substitution process.
Enhanced with Advanced SJ_Multi-EPI Technology, Reliability and Stability Inherited and Upgraded.
The IXFH70N65X3 relies on advanced technology for low on-resistance and high performance. The VBP16R67S employs VBsemi's proprietary SJ_Multi-EPI (Super Junction Multi-Epitaxial) technology, which optimizes the device structure for lower conduction losses, improved switching characteristics, and enhanced ruggedness. The device undergoes rigorous avalanche testing and high-voltage screening, ensuring excellent avalanche energy handling capability to withstand surges during high-voltage switching. Through optimized intrinsic capacitance design, it reduces switching losses and elevates dv/dt tolerance, making it ideal for high-frequency applications. With an operating temperature range of -55°C to 150°C, it adapts to harsh industrial environments and extreme climates. Having passed 1000-hour high-temperature/high-humidity (85°C/85% RH) aging tests and long-term reliability verification, its failure rate is below industry average, offering solid assurance for critical applications such as industrial controls, medical equipment, and emergency power supplies.
Fully Compatible Package, Enabling "Plug-and-Play" Replacement.
For downstream enterprises, a key concern in domestic substitution is the R&D effort and time cost involved. The VBP16R67S addresses this directly through its package design. It uses a TO-247 package, which is fully compatible with the IXFH70N65X3 in pinout, dimensions, and heatsink structure. Engineers can replace the original component without PCB layout changes or thermal system redesign, achieving seamless "plug-and-play" substitution. This compatibility reduces verification time to 1-2 days for samples, avoids costs from PCB revisions, and eliminates re-certification needs, accelerating supply chain integration and market responsiveness.
Local Strength Assurance, Dual Peace of Mind for Supply Chain Security and Technical Support.
Compared to imported components affected by international logistics, trade policies, and exchange rate fluctuations, VBsemi leverages China's robust semiconductor industry chain, with modern production bases and R&D centers in Jiangsu, Guangdong, and beyond. This enables full-process independent R&D and stable mass production of the VBP16R67S. Standard lead times are compressed to within 2 weeks, with emergency orders supporting 72-hour rapid delivery, mitigating risks from supply chain volatility and geopolitics. As a local brand, VBsemi provides dedicated technical support: comprehensive documentation (including substitution verification reports, datasheets, thermal design guides, and application circuits), customized selection advice, and circuit optimization based on specific customer needs. Technical issues are addressed within 24 hours via on-site or remote assistance, resolving slow response and high communication costs associated with imported components.
From industrial motor drives and switch-mode power supplies to welding machines and UPS systems; from renewable energy inverters to charging equipment, the VBP16R67S, with its core advantages of "lower on-resistance, high reliability, package compatibility, controllable supply, and responsive service," has become the preferred domestic alternative to the IXFH70N65X3. It has been successfully adopted by leading companies across industries, receiving strong market recognition. Choosing the VBP16R67S is not merely a component replacement—it is a strategic step toward upgrading supply chain security, optimizing production costs, and enhancing product competitiveness, requiring no R&D modification risks while delivering superior performance, stable supply, and local technical support.