In medium-voltage, high-current application scenarios such as motor drives, power inverters, DC-DC converters, and industrial power systems, Littelfuse IXYS's IXFA110N15T2, with its high current handling capability and low on-resistance, has been a reliable choice for engineers in power design. However, in the face of ongoing global supply chain uncertainties and extended lead times for imported components, this part reveals growing challenges: procurement delays, cost volatility, and limited local technical support. These factors increasingly impact project timelines and cost efficiency for downstream manufacturers. In this context, domestic substitution has evolved from a strategic option to an operational imperative, offering a clear path to enhance supply chain resilience and competitive advantage.
Leveraging its expertise in power semiconductor technology, VBsemi introduces the VBL11515 N-channel power MOSFET. This product is designed as a direct alternative to the IXFA110N15T2, delivering key benefits of package compatibility, comparable electrical performance, and stable local supply. It enables a seamless replacement in existing designs, providing a reliable, cost-effective, and readily available solution for various medium-voltage, high-power applications.
Optimized Performance Parameters, Ensuring Reliable Operation in Demanding Conditions.
As a tailored domestic alternative to the IXFA110N15T2, the VBL11515 offers a balanced and robust set of electrical characteristics suitable for high-current switching:
It features a drain-source voltage (VDS) of 150V, matching the original part, ensuring suitability for the same medium-voltage bus applications. The continuous drain current (ID) is rated at 80A, providing substantial current-carrying capacity for motor drives and power stages. A key strength is its low on-state resistance (RDS(on)) of 15mΩ (@10V VGS), which equals the excellent conduction efficiency of the IXFA110N15T2. This low RDS(on) minimizes conduction losses, improves overall system efficiency, and reduces thermal dissipation requirements. The device supports a gate-source voltage (VGS) of ±20V, offering good noise immunity and gate protection. With a standard gate threshold voltage (Vth) of 3V, it ensures easy drive compatibility with common controller ICs, requiring no circuit modifications for replacement.
Advanced Trench Technology for Efficiency and Ruggedness.
The IXFA110N15T2 leverages advanced technology for low loss and high performance. The VBL11515 utilizes VBsemi's mature Trench MOSFET process technology. This design achieves an excellent low on-resistance per silicon area, contributing to efficient power switching and reduced heat generation. The device is built for durability, capable of operating over a wide junction temperature range. It undergoes rigorous production testing and reliability validation, ensuring stable operation under demanding conditions such as high-current switching, surge events, and extended operation in industrial environments. This makes it a dependable choice for applications requiring long-term reliability.
Fully Compatible Package, Enabling Direct Drop-In Replacement.
A primary concern in component substitution is the engineering effort and cost involved in redesign. The VBL11515 eliminates this hurdle through its package design. It is offered in a TO-263 package, which is mechanically and footprint compatible with the IXFA110N15T2's TO-263 (D2PAK) package. The pinout, dimensions, and mounting hole pattern are identical. This allows engineers to replace the component on the existing PCB layout without any changes to the board design, heatsink, or mechanical assembly. The benefits are significant: it drastically reduces qualification time and cost, avoids PCB re-spin expenses, and accelerates the time-to-market for the upgraded product. The substitution process becomes virtually risk-free and immediate.
Local Supply Chain Assurance with Responsive Support.
Unlike imported components subject to international logistics and allocation delays, VBsemi manufactures the VBL11515 within a robust domestic supply chain. With modern manufacturing facilities and R&D centers in China, VBsemi ensures stable production capacity and significantly shorter, more predictable lead times—typically within weeks. This stability protects customers from geopolitical, trade, and logistics disruptions. Furthermore, as a local supplier, VBsemi provides direct and responsive technical support. Customers have access to comprehensive documentation, including detailed datasheets, application notes, and substitution guides. A dedicated technical team offers prompt assistance for design-in queries and application challenges, ensuring a smooth and supported transition from the original component.
From motor drives and industrial inverters to high-current DC-DC converters and power distribution systems, the VBL11515, with its core advantages of "package compatibility, efficient performance, stable supply, and local support," stands as the preferred domestic alternative to the Littelfuse IXYS IXFA110N15T2. It has been successfully adopted by multiple customers across various industries. Choosing the VBL11515 is more than a component swap; it is a strategic step toward securing your supply chain, controlling costs, and gaining access to agile technical support—all without compromising on performance or requiring design changes.