Driven by the dual forces of increasing efficiency demands and supply chain autonomy, the domestic substitution of core power devices has evolved from a backup option to a strategic imperative. Facing stringent requirements for high reliability, high efficiency, and high power density in applications such as switch-mode and resonant-mode power supplies, finding a domestic alternative solution that is powerful, reliable in quality, and stable in supply has become a critical task for numerous designers and manufacturers. When focusing on the classic 650V N-channel MOSFET from Littelfuse IXYS—the IXTH24N65X2—the VBP16R26S, launched by VBsemi, emerges as a formidable contender. It not only achieves precise performance alignment but also realizes a leap forward in key parameters based on SJ_Multi-EPI technology, representing a value transformation from "usable" to "excellent," from "substitution" to "surpassing."
I. Parameter Comparison and Performance Leap: Fundamental Advantages Brought by SJ_Multi-EPI Technology
The IXTH24N65X2 has earned recognition in applications like switch-mode power supplies and DC-DC converters due to its 650V voltage rating, 24A continuous drain current, and 145mΩ on-state resistance at 10V. However, as efficiency demands become more stringent, the inherent losses and thermal performance of the device can be limiting.
1.Building on hardware compatibility with a comparable voltage rating (600V VDS) and the same TO-247 package, the VBP16R26S achieves significant breakthroughs in key electrical characteristics through advanced SJ_Multi-EPI (Super Junction Multi-Epitaxial) technology:
Significantly Reduced On-Resistance: With VGS = 10V, the RDS(on) is as low as 115mΩ, a reduction of over 20% compared to the reference model. According to the conduction loss formula Pcond = I_D^2⋅RDS(on), losses are substantially lower at typical operating currents, directly improving system efficiency, reducing temperature rise, and simplifying thermal design.
2.Enhanced Current Capability: The continuous drain current is rated at 26A, higher than the 24A of the IXTH24N65X2, supporting higher power applications and providing additional design margin.
3.Optimized Switching Performance: Benefiting from the SJ_Multi-EPI structure, the device features low gate charge and output capacitance, enabling reduced switching losses under high-frequency operation, thereby improving system power density and dynamic response.
4.Robust Characteristics: With a gate-source voltage rating of ±30V and a threshold voltage of 3.5V, it offers stable drive compatibility and avalanche capability, suitable for demanding environments.
II. Deepening Application Scenarios: From Functional Replacement to System Upgrade
The VBP16R26S not only enables pin-to-pin direct replacement in existing applications of the IXTH24N65X2 but can also drive overall system performance improvements with its advantages:
1.Switch-Mode and Resonant-Mode Power Supplies
Lower conduction and switching losses can improve efficiency across the entire load range, facilitating higher power density designs and aligning with trends toward compact and energy-efficient systems.
2.DC-DC Converters
In both isolated and non-isolated converters, the low-loss characteristic directly contributes to improved conversion efficiency. Its superior switching performance supports higher frequency designs, reducing the size and cost of magnetic components.
3.Industrial and Renewable Energy Systems
Suitable for applications such as UPS, motor drives, and solar inverters, where high voltage and current handling are required, enhancing overall system reliability and performance.
III. Beyond Parameters: Reliability, Supply Chain Security, and Full-Lifecycle Value
Choosing the VBP16R26S is not only a technical decision but also a consideration of supply chain and commercial strategy:
1.Domestic Supply Chain Security
VBsemi possesses controllable capabilities across the entire chain from chip design and manufacturing to packaging and testing, ensuring stable supply, predictable lead times, effectively responding to external supply fluctuations and trade risks, and safeguarding production continuity for customers.
2.Comprehensive Cost Advantage
With comparable or even superior performance, domestic components offer a more competitive pricing structure and customization support, reducing BOM costs and enhancing end-product market competitiveness.
3.Localized Technical Support
Provides rapid, full-process support from selection, simulation, testing, to failure analysis, assisting customers with system optimization and troubleshooting, accelerating R&D iteration and problem resolution.
IV. Adaptation Recommendations and Replacement Path
For design projects currently using or planning to use the IXTH24N65X2, the following steps are recommended for evaluation and switching:
1.Electrical Performance Verification
Compare key waveforms (switching trajectories, loss distribution, temperature rise curves) under identical circuit conditions. Utilize the low RDS(on) and optimized switching characteristics of the VBP16R26S to adjust drive parameters for further efficiency gains.
2.Thermal Design and Mechanical Validation
Due to reduced losses, thermal requirements may be relaxed accordingly. Evaluate potential optimization of heat sinks for further cost or size savings.
3.Reliability Testing and System Validation
After completing electrical/thermal stress, environmental, and lifespan tests in the lab, progressively advance to system-level validation to ensure long-term operational stability.
Advancing Towards an Autonomous, High-Performance Power Electronics Era
The VBsemi VBP16R26S is not merely a domestic power MOSFET对标ing international brands; it is a high-performance, high-reliability solution for next-generation power electronic systems. Its advantages in conduction loss, current capability, and switching performance can help customers achieve comprehensive improvements in system efficiency, power density, and overall competitiveness.
In an era where efficiency and domestic substitution advance hand-in-hand, choosing the VBP16R26S is both a rational decision for technological upgrade and a strategic move for supply chain autonomy. We sincerely recommend this product and look forward to collaborating with you to drive innovation and transformation in power electronics.