TDK introduces industry-leading 100V MLCCs with 10μF capacitance in compact 3225 case size for automotive applications

Figure: The structure in which multilayer dielectrics and inner electrodes are stacked alternately. The monolithic and simple structure contributes to superior mechanical strength and excellent frequency characteristics

 

As power consumption increases and high-current systems become more widespread in modern vehicles, there is a growing demand for lighter vehicles with lighter wiring harnesses. The use of 48 V battery systems is becoming increasingly common, driving the need for high-capacity 100 V products, such as smoothing and decoupling capacitors used in power lines.

 

The new CGA series 100 V products achieve twice the capacity of conventional products of the same size, thanks to optimized material selection and product design. This innovation allows for a reduction in the number of MLCCs used and the mounting area, contributing to the miniaturization of electronic sets and a reduction in component count. TDK is committed to further expanding its lineup to meet the evolving needs of its customers.

The main applications of TDK's new MLCCs include smoothing and decoupling of power lines for various 48 V automotive products. These capacitors offer a high capacitance of 10 μF in a compact 3225 size, which helps reduce the component count and enables the miniaturization of electronic sets. They are also highly reliable, having been qualified based on AEC-Q200 standards, ensuring their suitability for automotive applications.

Smoothing involves the process of charging and discharging high-capacity capacitors to reduce voltage fluctuations in rectified currents, making them smoother. Decoupling refers to the use of capacitors between IC power lines and ground to reduce voltage fluctuations by temporarily supplying current when the load changes drastically. AEC-Q200 standards are set by the Automotive Electronics Council for passive components used in automobiles.

The potential use cases for TDK's new MLCCs are extensive.

 In Electric Vehicle power systems, these capacitors are ideal for Battery Management Systems due to their high capacitance and reliability, helping manage power flow and ensuring stable battery operation. They are also suitable for inverters and converters, where they smooth out voltage fluctuations and provide stable power to the electric motor and other components. 

In Advanced Driver Assistance Systems, the high capacitance and compact size of these MLCCs make them perfect for radar and lidar systems, where they filter and stabilize the power supply, ensuring accurate and reliable operation. Additionally, they can be used in Electronic Control Units to decouple power lines and reduce noise, enhancing the performance and reliability of ADAS features such as adaptive cruise control and lane-keeping assist. 

For Infotainment and Connectivity Systems, these capacitors are beneficial in automotive multimedia systems, stabilizing the power supply and reducing noise to ensure high-quality audio and video performance. They are also useful in telematics and connectivity modules, smoothing out power fluctuations and ensuring reliable operation of communication systems.

For more information, visit https://www.tdk-electronics.tdk.com