Compact aluminium electrolytic capacitors have high ripple current capability
The B43707 and B43727 series of Epcos aluminium electrolytic capacitors with screw terminals are designed for rated voltages of between 400 and 450V DC. They cover a capacitance range from 1800 to 18,000 microF.
TDK points out that the capacitors have a high CV, which enables very compact dimensions. Depending on capacitance and voltage the capacitors measure as little as 51.6 x 80.7mm and up to 76.9 x 220.7mm.
The capacitors are designed for a maximum operating temperature of +85 degrees C and offer a very high ripple current capability of up to 63.9A AC (100Hz, 60 degrees C). A special base cooling design is available, which doubles the ripple current capability.
The B43707 series is intended for mounting with ring clips and the B43727 series has a threaded stud on the base of the can.
The robust capacitors are suitable for use in industrial power supplies, frequency converters or uninterruptible power supply systems. They can also be deployed in renewable energy applications such as the converters in photovoltaic and wind power plants.
TDK is an electronics company based in Tokyo, Japan. It was established in 1935 to commercialise ferrite, a key material in electronic and magnetic products. TDK’s comprehensive portfolio features passive components such as ceramic, aluminium electrolytic and film capacitors, as well as magnetics, high-frequency, and piezo and protection devices. The company also produces sensors and sensor systems such as temperature and pressure, magnetic, and MEMS sensors. In addition, TDK provides power supplies and energy devices and magnetic heads.
This range of products is 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 and employs about 105,000 people worldwide.