Matsushita Electric Industrial Co., Ltd. has developed a vibration-resistant, patch-type conductive polymer hybrid aluminum electrolytic capacitor designed for use in vehicle ECU (Electronic Control Unit) power supply circuits, including those found in HEVs (Hybrid Electric Vehicles), EVs (Electric Vehicles), and traditional gasoline-powered vehicles. This innovative capacitor was launched into mass production in December 2017, marking a significant advancement in automotive electronics.
As the demand for improved fuel efficiency and stricter environmental regulations continues to grow, eco-friendly vehicles are increasingly equipped with more ECUs and advanced mechatronic systems. This trend has intensified the need for smaller, more reliable components that can withstand harsh operating conditions. In particular, capacitors used to stabilize voltage and filter noise in ECU power supply circuits must now meet higher standards of miniaturization and vibration resistance. To address this, Matsushita Electric introduced the industry’s first conductive polymer hybrid aluminum electrolytic capacitor with a 6.3mm diameter and an impressive vibration resistance of 30G—far surpassing its previous model, which offered only 10G of vibration resistance.
This new product not only meets the growing demands of modern automotive systems but also simplifies the manufacturing process. It eliminates the need for additional reinforcement during board mounting, reducing the reliance on adhesives and contributing to more efficient customer production lines. Additionally, the capacitor features Panasonic's proprietary auxiliary terminal structure, ensuring excellent solderability and long-term reliability.
The capacitor is available in two sizes: 6.3mm in diameter with heights of 6.1mm and 8.0mm, making it highly versatile for different ECU designs. Its compact size and robust performance make it ideal for use in HEVs, EVs, high-function ECUs in gasoline vehicles, and electromechanical integrated ECU circuits.
With its advanced design and superior performance, this new capacitor represents a major step forward in automotive electronics, supporting the development of safer, more efficient, and more environmentally friendly vehicles.
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