July 18, 2013

Aluminum electrolytic capacitors: Snap-in series with extremely compact designs

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TDK Corporation presents two new series of EPCOS aluminum electrolytic capacitors in extremely compact snap-in designs. The dimensions of the new B43640* and B43644* series are 22 x 25 mm to 35 x 55 mm (diameter x height), depending on the type. Thus, both series are significantly more compact than previous series for identical rated voltage and capacitance values. Moreover, both series feature very high ripple current capability.

The B43640* series is designed for rated voltages from 200 V DC to 450 V DC and covers a capacitance range from 82 μF to 3300 μF. At a continuous operating temperature of 105 °C, these capacitors attain a service life of 2000 hours. The B43644* series is suitable for rated voltages from 200 V DC to 500 V DC and is available with capacitance values from 39 μF to 2700 μF. These capacitors reach a service life of 5000 hours at a continuous operating temperature of 105 °C.

Thanks to their more compact dimensions, these new snap-in capacitors are suited as link circuit capacitors in compact frequency converters, solar inverters and power supplies for industrial applications.

Main applications

  • Compact frequency converters, solar inverters and power supplies for industrial applications

Main features and benefits

  • Very compact designs of only 22 mm x 25 mm to 35 mm x 55 mm (diameter x height)
  • High ripple current capability
  • Rated service life of 2000 or 5000 hours at 105 °C

Key data

Rated voltage
[V DC]
Rated service life at 105 °C
B43640*22 x 25 to 35 x 55200 to 45082 to 33002000
B43644*22 x 25 to 35 x 55200 to 50039 to 27005000

Further information on the products can be found under www.epcos.com/alu_snapin

Please forward reader inquiries to marketing.communications@epcos.com

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 portfolio includes electronic components, modules and systems which are marketed under the product brands TDK and EPCOS, power supplies, magnetic application products as well as energy devices, flash memory application devices, and others. TDK focuses on demanding markets in the areas of information and communication technology and consumer, automotive and industrial 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 2013, TDK posted total sales of USD 9.1 billion and employed about 80,000 people worldwide.

About TDK-EPC Corporation
TDK-EPC Corporation, a TDK group company, is the manufacturer of TDK’s electronic components, modules and systems and is headquartered in Tokyo, Japan. TDK-EPC was founded on October 1, 2009 from the combination of the electronic components business of TDK and the EPCOS Group. The product portfolio includes ceramic, aluminum electrolytic and film capacitors, ferrites, inductors, high-frequency components such as surface acoustic wave (SAW) filter products and modules, piezo and protection components, and sensors.