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Revolutionizing Power Management: Vishay’s Ultra Low TCR Metal Strip® Sets New Standards
Unveiling Ultra Low TCR: A New Era in Precision
Vishay Intertechnology has announced a groundbreaking Power Metal Strip® series with a remarkable temperature coefficient of resistance (TCR) as low as ±10 ppm/°C. This breakthrough aligns with its AEC-Q200 certification and caters to critical sectors like automotive, energy, industrial, and aerospace by supporting up to 50 W power ratings and a minimum resistance of 15 μΩ.
Enhanced Design Simplicity and Space Efficiency
The low TCR in these devices is achieved through a strategic fusion of solid metal resistors and proprietary TCR mitigation technology. This innovative design negates the need for separate temperature compensation circuits, streamlining the calibration process and reducing the component count, which simultaneously saves space and lowers costs while enhancing design accuracy.
The WSBE series offers both the 8518 and 8536 case sizes, featuring advanced processing techniques that ensure ultra-low resistance values. With performance features like 1% life stability and the capability to handle high currents up to 1825 A, this technology sets a new bar for high-performance shunt resistors.
Applications Revolutionizing Industries
Designed primarily for use in Battery Management Systems (BMS), these devices eliminate the need for additional temperature sensors or software corrections during manufacturing. Applications range from electric vehicles (EVs) and hybrid electric vehicles (HEVs) to energy monitoring systems and large battery backups. Their front-surface welding structure also offers ultra-low inductance, making them ideal for precise power applications.

Leading Sustainability and Compliance
In addition to technological superiority, these resistors comply with RoHS regulations, are halogen-free, and meet Vishay’s Green environmental standards. The resistors operate across a broad temperature range, from -65 °C to +170 °C, ensuring reliability in various demanding conditions.
Future Trends in Power Management
The advancement shown by Vishay’s Power Metal Strip® technology hints at several future trends in power management and electronics:
- Precision and Efficiency: Enhanced thermal management techniques might soon become commonplace, leading to further reductions in energy loss and heat generation.
- Sustainability: Eco-friendly manufacturing processes and materials will likely dominate, as seen with Vishay’s Green certification, addressing global demands for sustainability.
- Interconnected Systems: As IoT applications surge, devices optimized for minimal interference in complex systems will become critical for reliable performance.
FAQ: Power Management Insights
Q: What does low TCR mean for device performance?
A: A low TCR ensures minimal resistance change with temperature variations, leading to more accurate and reliable device performance.
Q: Why is this technology important for EVs?
A: For EVs, accurate power management and efficiency improvements directly impact range and battery life, making Vishay’s technology a game-changer.
Did You Know?
The next generation of smart cities will heavily rely on technologies like those from Vishay to manage power efficiently across interconnected systems.
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