Summary of WORLD’S SMALLEST FERRITE CHIP BEADS TARGET AUTOMOTIVE POWER SUPPLY APPLICATION
Murata’s BLM18SP_SH1 series are the world’s smallest chip ferrite beads for automotive power-supply noise suppression, with samples shipping and volume production from June 2020. Using new internal electrode fabrication, they offer improved impedance efficiency, lower resistance, and higher current capability. Packaged in 0603 (1.6 mm × 0.8 mm), they halve the base area versus typical 0805 beads, aiding miniaturization and improved noise control for ADAS and autonomous-driving electronic components.
Parts used in the BLM18SP_SH1 series:
- BLM18SP_SH1 chip ferrite beads (0603 / 1.6 mm × 0.8 mm)
- Internal electrode fabrication technology (as part of bead structure)
- Ferrite material (for noise suppression)
Murata Manufacturing Co., Ltd. has introduced the BLM18SP_SH1 series of 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 in June 2020.
In recent years, in keeping with the progress of automobile electrification, cars have been equipped with an increasing number of electronic components such as cameras, radar, LiDAR and ECUs in order to support ADAS and autonomous driving. To ensure that the numerous in-vehicle components function properly and that a high degree of safety is maintained, it is essential to employ countermeasures against noise in power supply circuits and to ensure a stable power supply to each component. As the number of in-vehicle components increases, needs are growing for improved noise suppression capabilities as well as for miniaturization.
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(1608) inch (mm) size (1.6mm × 0.8mm) package, this series has a 50% smaller base area compared to conventional products which are typically packaged in 0805(2012) inch (mm) size (2.0mm × 1.25mm). 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.
Read more: WORLD’S SMALLEST FERRITE CHIP BEADS TARGET AUTOMOTIVE POWER SUPPLY APPLICATION
- What product did Murata introduce?
Murata introduced the BLM18SP_SH1 series of the world’s smallest chip ferrite beads for automotive power supply noise suppression. - When does volume production begin?
Volume production is scheduled to begin in June 2020. - What package size are these ferrite beads?
They are commercialized in 0603 size, 1.6 mm × 0.8 mm. - How does the size compare to conventional products?
The base area is 50% smaller than conventional 0805 (2.0 mm × 1.25 mm) products. - What structural change improves performance?
A new structural design utilizing internal electrode fabrication technology improves impedance acquisition efficiency and lowers resistance. - What electrical benefits result from the new design?
The design yields improved impedance efficiency, lower resistance, and enables a larger current. - Why are these smaller ferrite beads important for automotive applications?
They support improved noise suppression and miniaturization needed for increasing in-vehicle electronic components for ADAS and autonomous driving.
