TDK expands its lineup of multilayer ceramic chip capacitors with new low-resistance resin electrode products

Multilayer Ceramic Capacitors: TDK expands its MLCC lineup with new low-resistance resin electrode products

• Achieved low resistance comparable to standard products, with the resin layer covering only a portion of the terminal electrodes

  
  

• The capacitance of the new 3216 size product is 10㎌, and the capacitance of the 3225 size product is 22㎌

  
  

• AEC-Q200 compliant

Multilayer Ceramic Capacitors: TDK expands its MLCC lineup with new low-resistance resin electrode products

September 14, 2021

TDK Corporation (TSE:6762) has expanded its CN series multilayer ceramic chip capacitor (MLCC) product lineup with the first product of its kind. The new 3216 size products (3.2 x 1.6 x 1.6 mm) have a capacitance of 10 μF and the 3225 size (3.2 x 2.5 x 2.5 mm) has a capacitance of 22 mm and offer low-resistance resin electrodes with low terminal resistance comparable to standard products. Mass production of the new products will begin in September 2021.

MLCCs with resin electrodes prevent short circuits in power lines. However, since the terminal electrode resistance of resin electrodes is slightly higher, the resistance must be kept low to reduce losses. TDK's new resin electrodes are covered with a resin layer on the board mounting side, which resists the bending stress of the board while suppressing the increase in resistance.

TDK expects that these products will promote the use of resin electrodes to replace MLCCs in power lines to improve reliability. Compared with conventional products, the new products have higher capacity, which helps reduce the number of parts and the size of MLCCs. In the future, TDK will continue to expand its MLCC product lineup to meet customer needs.

Glossary

Resin electrode: The standard terminal electrode has a two-layer plating structure with Cu and Ni-Sn as the base electrode, while the resin electrode is coated with a conductive resin between the two layers of plating with Cu and Ni-Sn as the base electrode.

AEC-Q200: The Automotive Electronics Council's standard for passive automotive components.

Main Applications

Smoothing and decoupling of power lines for various electronic control units (ECUs) in automobiles

Power cords for industrial robots, etc.

Main features and advantages

• TDK's unique terminal structure enables resin electrodes to have low resistance comparable to standard products

  
  

• The 3216 size has a 10 μF capacitor and the 3225 size has a 22 μF capacitor. The higher capacitance saves design space and reduces the number of parts.

  
  

• High reliability, compliant with AEC-Q200 standard

Key data

About TDK Corporation

TDK Corporation, headquartered in Tokyo, Japan, is a global leader in electronic solutions for the smart society. Built on a foundation of mastery in materials science, TDK is at the forefront of technological development and embraces social change with the motto "Attracting the Future". Founded in 1935, the company specializes in ferrite, a key material for electronic and magnetic products. TDK's comprehensive and innovation-driven product portfolio includes passive components such as ceramic capacitors, aluminum electrolytic capacitors, and film capacitors, magnetic products, high-frequency components, piezoelectric and protection devices, as well as sensors and sensor systems (such as temperature and pressure, magnetic, and MEMS sensors). In addition, TDK offers power supplies and energy devices, magnetic heads and more. Product brands include TDK, EPCOS, InvenSense, Micronas, Tronics and TDK-Lambda. TDK focuses on markets such as automotive, industrial and consumer electronics, and information and communication technology. The company has a network of design, manufacturing and sales offices in Asia, Europe, North America and South America. In fiscal 2020, TDK's sales totaled USD 13.3 billion and it employed approximately 129,000 people worldwide.