Murata introduces world's smallest ferrite chip beads for automotive power supply
Murata Manufacturing Co., Ltd. has introduced the BLM18SP_SH1 series of what it says is the world's smallest chip ferrite beads (for noise suppression) for use in automotive power supply applications. The company has started shipping samples, and volume production is scheduled to begin this month.
With a new structural design that utilizes internal electrode fabrication technology, the new series realizes improved impedance acquisition efficiency along with lower resistance, which leads to a large current. In addition, commercialized in 0603 in (1608 mm) size (1.6 mm × 0.8 mm) (.062 in x .031 in) package, this series has a 50% smaller base area compared to conventional products which are typically packaged in 0805 in (2012 mm) size (2.0 mm × 1.25 mm) (.078 in x .049 in). According to the company, 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, the company has two other series in 0603 in size—the BLM18SP_SZ1 series for in-vehicle infotainment and the BLM18SP_SN1 series for consumer devices.
Highlights of products include:
- Achieved approx. 50% smaller base area compared to the conventional BLM21PG series
- Complied with AEC-Q200
- 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)
For more information, visit www.murata.com.