Murata Introduces World's Smallest Ferrite Chip Beads for Automotive Power Supply Applications

June 16, 2020 Tiera Oliver

Murata Manufacturing has introduced the BLM18SP_SH1 series. According to the company, the series features the world’s smallest single-chip ferrite beads for noise suppression in automotive power supply applications.

With a new structural design that utilizes internal electrode fabrication technology, the new series features ideal impedance acquisition efficiency along with lower resistance, which leads to a large current. In addition, commercialized in 0603(1608) inch (mm) size (1.6mm × 0.8mm) package. According to the company, this series has a 50% smaller base area compared to conventional products. This provides manufacturers with more flexibility when designing automotive power supply circuits and helps to support more sophisticated autonomous driving with smaller in-vehicle components.

In addition to this series for automotive power supply applications, Murata has two other series in 0603 inch size—the BLM18SP_SZ1 series for in-vehicle infotainment and the BLM18SP_SN1 series for consumer devices.

Highlights of products

  • Achieved approx. 50% smaller base area compared to the conventional BLM21PG series
  • Complied with Automotive Electronics Council (AEC) -Q200*5
  • Two times the rated current and three times the impedance of Murata's conventional product (BLM18PG221SH1)
  • Supports up to 6A rated current or 1kΩ impedance (in the BLM18SP_SH1 series)
  • A world's smallest product delivering 600Ω impedance and 1500mA rated current (BLM18SP601SH1) 

BLM18SP_SH1 series

BLM18PG_SH1 series

For additional product information, visit: chip ferrite beads for noise control for automotive power supply BLM18SP_SH1 series or visit:

About the Author

Tiera Oliver, edtorial intern for Embedded Computing Design, is responsible for web content edits as well as newsletter updates. She also assists in news content as far as constructing and editing stories. Before interning for ECD, Tiera had recently graduated from Northern Arizona University where she received her B.A. in journalism and political science and worked as a news reporter for the university's student led newspaper, The Lumberjack.

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