Aluminum electrolytic capacitors: Compact single-ended series with high current capability

TDK Corporation (TSE:6762) has developed a new series of EPCOS single-ended aluminum electrolytic capacitors that feature a particularly compact design, a high CV product and high ripple current capability. The capacitors of the B41897* series are available for rated voltages of between 25 V DC and 75 V DC and cover a capacitance range from 270 µF to 12,000 µF. The dimensions of the new components range from 12.5 mm x 20 mm to 18 mm x 40 mm (d x l) depending on the voltage and capacitance.

Thanks to the use of improved materials, the new capacitors can be exposed to high temperatures and are designed for continuous operation at up to 135 °C and for a peak temperature of 150 °C. In comparison with previous series, it has been possible to increase the ripple current capability while at the same time raising the capacitance by as much as 60 percent. This means that the maximum ripple current capability is now higher than 7 A at 125 °C and 100 kHz. Typical applications include automotive ECUs and power supplies.

Main applications

• Automotive ECUs and power supplies

Main features and benefits

• High continuous operating temperature of up to 135 °C and peak temperature of 150 °C
• Compact dimensions ranging from 12.5 mm x 20 mm to 18 mm x 40 mm (d x l)
• High ripple current capability

Further information on the products can be found under www.tdk-electronics.tdk.com/alu_single. 

About TDK Corporation

TDK Corporation is a leading electronics company based in Tokyo, Japan. It was established in 1935 to commercialize ferrite, a key material in electronic and magnetic products. TDK's comprehensive portfolio features passive components such as ceramic, aluminum electrolytic and film capacitors, as well as magnetics, high-frequency, and piezo and protection devices. The product spectrum also includes sensors and sensor systems such as temperature and pressure, magnetic, and MEMS sensors. In addition, TDK provides power supplies and energy devices, magnetic heads and more. These products are marketed under the product brands TDK, EPCOS, InvenSense, Micronas, Tronics and TDK-Lambda. TDK focuses on demanding markets in the areas of information and communication technology and automotive, industrial and consumer electronics. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America. In fiscal 2018, TDK posted total sales of USD 12 billion and employed about 103,000 people worldwide.