Driven by the growing demand for efficiency and reliability in mid-voltage high-current applications, domestic substitution of power semiconductors has shifted from an alternative to a strategic priority. Facing requirements for low conduction loss, high current handling, and robust performance in areas like power supplies and motor drives, identifying a domestic solution that offers superior performance, quality reliability, and stable supply is crucial for designers and manufacturers. When considering the established 75V N-channel MOSFET from Littelfuse IXYS—the IXTA90N075T2-TRL—the VBL1606 from VBsemi emerges as a compelling replacement. It not only matches core functionalities but achieves significant leaps in key parameters through advanced Trench technology, representing a transition from "substitution" to "enhancement."
I. Parameter Comparison and Performance Leap: Core Advantages from Trench Technology
The IXTA90N075T2-TRL has gained traction in applications such as DC-DC converters and motor control due to its 75V drain-source voltage, 90A continuous drain current, and 10mΩ on-state resistance at 10V. However, as systems push for higher efficiency and power density, its conduction losses and current limits can become constraints.
1.Building on hardware compatibility with a similar TO-263 package and N-channel configuration, the VBL1606 delivers breakthroughs in electrical characteristics via optimized Trench technology:
Significantly Reduced On-Resistance: With VGS = 10V, the RDS(on) is as low as 4mΩ, a 60% reduction compared to the reference model. According to the conduction loss formula Pcond = I_D^2⋅RDS(on), this drastically lowers losses at high currents (e.g., above 50A), improving efficiency, reducing thermal stress, and simplifying cooling designs.
2.Enhanced Current Capability: The continuous drain current rating of 150A outperforms the reference model by 67%, enabling higher power throughput and better overload tolerance in demanding applications.
3.Balanced Voltage Rating: With a VDS of 60V, the VBL1606 is suited for common mid-voltage platforms (e.g., 48V systems), and its lower RDS(on) and higher ID often compensate for the slight voltage difference, expanding usability in many scenarios.
II. Deepening Application Scenarios: From Direct Replacement to System Enhancement
The VBL1606 not only allows pin-to-pin replacement in existing designs for the IXTA90N075T2-TRL but can also drive system-level improvements:
1.DC-DC Converters (e.g., 48V to 12V)
Lower conduction losses boost efficiency across load ranges, supporting higher power density and compact designs. The high current rating facilitates higher output currents without derating.
2.Motor Drives and Controls
In applications like robotics, industrial motors, or automotive auxiliary drives, the low RDS(on) and high current capability reduce heating, improve torque response, and enhance reliability at high temperatures.
3.Power Supplies and UPS
Suitable for server power supplies, telecom rectifiers, or uninterruptible power systems, the device enables efficient power conversion with reduced losses, contributing to energy savings and cooler operation.
4.New Energy and Industrial Systems
In solar inverters, battery management, or welding equipment, the combination of low resistance and high current supports robust performance in harsh environments.
III. Beyond Parameters: Reliability, Supply Chain Security, and Full-Lifecycle Value
Choosing the VBL1606 is both a technical and strategic decision:
1.Domestic Supply Chain Assurance
VBsemi maintains control from chip design to packaging and testing, ensuring stable supply, shorter lead times, and resilience against global disruptions, safeguarding production for customers.
2.Total Cost Advantage
With superior performance metrics, domestic pricing offers better value, reducing BOM costs and enhancing end-product competitiveness without compromising quality.
3.Localized Technical Support
Rapid assistance in selection, simulation, testing, and failure analysis accelerates development cycles and problem resolution, fostering collaboration.
IV. Adaptation Recommendations and Replacement Path
For projects using or planning to use the IXTA90N075T2-TRL, follow these steps for evaluation:
1.Electrical Performance Verification
Compare switching waveforms, loss distribution, and efficiency under identical conditions. Leverage the low RDS(on) of the VBL1606 to optimize drive parameters (e.g., gate resistance) for further performance gains.
2.Thermal Design and Mechanical Validation
Reduced losses may allow for smaller heat sinks or relaxed thermal management. Verify layout compatibility and thermal performance in target applications.
3.Reliability Testing and System Validation
Conduct electrical, thermal, and environmental stress tests in labs, followed by field trials to ensure long-term stability and compliance.
Advancing Toward Autonomous, High-Efficiency Power Solutions
The VBsemi VBL1606 is not just a domestic alternative to international MOSFETs; it is a high-performance solution for next-generation mid-voltage systems. Its advantages in conduction loss, current handling, and efficiency empower customers to achieve gains in system performance, density, and cost-effectiveness.
In an era of technological independence and innovation, selecting the VBL1606 is a rational choice for performance upgrades and a strategic step toward supply chain resilience. We recommend this product and look forward to partnering with you to drive progress in power electronics.