BLM18SP_SH1 – Ultra Small Chip Ferrite Beads for Automotive Power Supply Applications

Murata's BLM18SP_SH1 Ferrite Beads
Murata's BLM18SP_SH1 Ferrite Beads
Murata's BLM18SP_SH1 Ferrite Beads

Murata introduced the BLM18SP_SH1, a series of smallest chip ferrite beads for automotive power supply applications. To support ADAS and autonomous driving, the cars have been equipped with electronic components such as cameras, radar, LiDAR, and ECUs. To make sure all the components in the vehicle are operating properly, a high degree of safety is maintained, hence it is important to protect the equipment against noise in power circuits.


The new series can offer improved impedance acquisition efficiency along with lower resistance and large current, as the chips are designed with a new structural design that utilizes an internal electrode fabrication technology. The chip is packed in 0603(1608) inch (mm) size (1.6mm × 0.8mm) package, a 50% smaller base area compared to conventional products, this provides more flexibility for the manufacturers while designing automotive power supply circuits and supports more sophisticated autonomous driving with smaller in-vehicle components.


Along with this series, Murata has also developed two other series in 0603-inch size-the BLM18SP_SZ1 series for in-vehicle infotainment and the BLM18SP_SN1 series for consumer devices.


Features of BLM18SP_SH1 Series

  • Two times the rated current and three times the impedance of Murata's conventional product 
  • Impedance values of 30Ω to 1kΩ and rated current values of 6A to 1.2A.
  • 50% smaller base area compared to the conventional BLM21PG series
  • A world's smallest product delivering 600Ω impedance and 1500A rated current
  • Complied with AEC-Q200


Note : More technical information can be found in the datasheet linked at the bottom of this page and on the BLM18SP_SH1 Series product Page.

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