August 29, 2013

Power inductors: SMT design with increased current capability

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TDK Corporation presents a new series of EPCOS SMT power inductors whose current capability is 10 percent higher than existing types. The components of the improved and highly reliable B82476B1*M100 series of SMT power inductors are designed for rated currents between 0.33 A and 7.5 A. The spectrum of inductance values ranges from 1.0 µH to 1000 µH, and the typical DC resistance is between 6.0 mΩ and 1.95 Ω.

The power inductors, which are qualified to AEC-Q200, are suitable for operating temperatures from -55 °C to +150 °C and thus fulfill the rigorous requirements for automotive electronics applications. Designed with a base plate, the unshielded components offer high mechanical stability. The new inductors have a footprint of 12.95 mm x 9.40 mm and an insertion height of 5.08 mm. The components are RoHS-compatible and suitable for lead-free soldering to JEDEC J-STD-020D. The main applications for the high power inductors are DC-DC converters in automotive electronics and switch-mode power supplies (SMPS) for demanding industrial electronics applications.

Main applications

  • DC-DC converters in automotive electronics
  • SMPS with high requirements on temperature range and reliability

Main features and benefits

  • 10 percent higher current capability than existing types
  • High rated currents of up to 7.5 A
  • Broad operating temperature range from -55 °C to +150 °C
  • Qualified to AEC-Q200
  • RoHS-compatible and suitable for lead-free soldering to JEDEC J-STD-020D
  • Broad spectrum of inductance values from 1.0 µH to 1000 µH

Key data

SeriesRated current
[A]
Inductance
[μH]
DC resistance (typ.)
[Ω]
Operating temperature
[°C]
B82476B1*M1000.33 to 7.51.0 to 10000.006 to 1.95-55 to +150

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

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.