Vishay VS-UFB280FA20 IGBT Module

Vishay VS-UFB280FA20 | High-Efficiency 200V Three-Phase IGBT Bridge Module

The Vishay **VS-UFB280FA20** is a highly integrated and robust power module engineered for demanding, high-current power conversion applications. By combining six ultrafast IGBTs in a full three-phase bridge configuration, this module provides a streamlined solution for designers of motor drives, SMPS, and welding systems who prioritize efficiency, power density, and reliability.

• Brand: Vishay
• Model: VS-UFB280FA20
• Core Function: 200V, 280A (Average) Three-Phase Bridge IGBT Module
• Key Strengths: Ultrafast switching speeds, low conduction losses, and integrated soft-recovery diodes.
• Typical Applications: AC motor control, industrial servo drives, uninterruptible power supplies (UPS), and high-frequency welding equipment.

Technical Deep-Dive: The Engineering Edge

The performance of the **VS-UFB280FA20** is rooted in its advanced silicon technology and intelligent co-packaging. Two features stand out for system-level benefits:

• Ultrafast IGBTs with Low Vce(sat): The module utilizes IGBTs optimized for high-speed switching while maintaining a very low collector-emitter saturation voltage. This dual advantage directly tackles the two primary sources of power loss. Lower switching losses enable higher operating frequencies for more compact system designs, while low IGBT Vce(sat) minimizes conduction losses, leading to superior thermal performance and reduced heatsink requirements.
• Integrated FRED Pt® Diodes: Each IGBT is paired with a Fast Recovery Epitaxial Diode (FRED) featuring platinum lifetime control. Unlike standard diodes, these exhibit extremely soft recovery characteristics. This significantly dampens voltage overshoots and ringing during commutation, which reduces EMI generation at the source. For engineers, this translates to a simpler, less expensive EMC filtering design and enhanced reliability by minimizing voltage stress on the IGBTs.

Application-Specific Value Proposition

The technical features of the Vishay **VS-UFB280FA20** deliver tangible benefits across various industrial sectors:

• AC Motor & Servo Drives: In motor control, efficiency is paramount. The module's low overall power loss translates directly to reduced energy consumption and less waste heat. This allows for smaller, fan-less, or more cost-effective cooling solutions, enhancing the reliability and lowering the total cost of ownership for a three-phase IGBT inverter system.
• High-Frequency Power Supplies & UPS: The ultrafast switching capability is a key enabler for compact SMPS and UPS designs. Operating at higher frequencies allows designers to use smaller and lighter magnetic components (transformers and inductors), leading to a significant increase in power density.
• Welding Equipment: Welders impose harsh, pulsed load conditions. The **VS-UFB280FA20**'s robust thermal design and the soft-switching characteristics of its integrated soft-recovery diodes ensure stable operation and long service life, even under the repetitive thermal and electrical stress found in professional welding applications.

Key Technical Parameters at a Glance

For complete specifications, download the official VS-UFB280FA20 Datasheet.

Industry Insight & Design Advantage

In the drive for more efficient and compact power systems, designers often face a choice between silicon IGBTs and newer wide-bandgap devices. While SiC and GaN offer benefits at very high frequencies or voltages, the Vishay **VS-UFB280FA20** occupies a critical space for mainstream industrial applications. It delivers a significant performance uplift over older IGBT generations without the cost and design complexity of wide-bandgap solutions. Its combination of high current handling, low losses, and a standard, easy-to-use package makes it an ideal workhorse for optimizing systems in the sub-600V range. For engineers looking to upgrade existing designs or develop new, cost-effective platforms, this module offers a compelling balance of performance, reliability, and value. To discover more solutions, explore our full range of IGBT Modules.

Frequently Asked Questions (FAQ)

• How does the SOT-227 package benefit my design?The SOT-227 is an industry-standard, isolated package renowned for its ease of mounting and excellent thermal transfer to a heatsink. Its isolated baseplate simplifies mechanical design by eliminating the need for external insulating materials, reducing assembly time and potential points of failure. This type of IGBT module packaging is ideal for robust industrial environments.
• What are the key considerations for the gate drive circuit?To leverage the module's ultrafast switching, the gate driver must be able to source and sink sufficient peak current to charge and discharge the IGBTs' input capacitance quickly. A clean, low-inductance PCB layout between the driver and the module terminals is crucial to prevent ringing and ensure stable switching.
• Is this module suitable for paralleling?While the module is designed for high-current applications, paralleling SOT-227 packages requires careful attention to layout symmetry to ensure current sharing. For applications requiring significantly more current, it may be more practical to select a larger, single module. For specific application support or to discuss your power requirements, contact us for a quote and expert advice.