New Murata chip ferrite beads unique in solving wide band noise - including high-frequency range(1GHz) issues within high-current automotive systems

Rhea-AI Summary

Murata Manufacturing Co., Ltd. has launched the BLM21HE series of chip ferrite beads, enhancing noise suppression technology for vehicles. These components offer high impedance (up to 850Ω at 1GHz), crucial for next-gen designs where high-current power lines interact with high-frequency communications. They are vital for applications like wireless battery management systems and vehicle-to-vehicle communication. The BLM21HE series operates from -55°C to +150°C and minimizes power loss, thereby improving efficiency and reducing thermal management needs.

Positive

• Introduction of the BLM21HE series enhances noise suppression technology.
• High impedance of 850Ω at 1GHz improves signal integrity.
• Suitable for advanced applications like wBMS and V2X communication systems.
• Minimizes power loss, improving overall operational efficiency.

Negative

• None.

KYOTO, Japan--(BUSINESS WIRE)-- Murata Manufacturing Co., Ltd. (TOKYO: 6981) (ISIN: JP3914400001) continues to lead the way in noise suppression technology with another exciting industry first. By leveraging advanced structural simulation techniques, the company’s new BLM21HE series of chip ferrite beads have the unique capability of providing vehicles with power line noise suppression solutions that exhibit high impedance at high frequency levels.

[Murata Manufacturing Co., Ltd.] BLM21HE series (Photo: Business Wire)

Even at 1GHz, members of the BLM21HE series will typically attain impedance values of 850Ω (in case of BLM21HE802***). This makes these components pivotal in addressing the signal integrity expectations of next generation vehicle designs - where high current power lines will be in close proximity to high-frequency communication-related functions. Among the places where these components will be deployed is in wireless battery management system (wBMS) infrastructure and vehicle-to-vehicle (V2X) communication systems.

Inclusion of wBMS and V2X functions means that noise suppression at higher frequencies is now becoming essential. Until now, noise suppression solutions suitable for deployment in high-current circuits have not been applicable in relation to sufficiently suppressing high-frequency noise. The BLM21HE series has a wide band from 100MHz to 1GHz and has high impedance - so it is possible to suppress high frequency noise in addition to conventional noise frequencies.

This will prevent high-current power lines that automotive OEMs are transitioning towards from impacting on vital data being transmitted. Furthermore, the low DC resistance values of these chip ferrite beads results in minimal power loss, thereby improving efficiency and meaning less thermal management is needed to dissipate any generated heat.

The BLM21HE series chip ferrite beads from Murata are available in versions that support operational temperatures between -55°C to +125°C and -55°C to +150°C. They are supplied in compact 0805 inch size (2.0mm ×1.25mm × 1.25mm).

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View source version on businesswire.com: https://www.businesswire.com/news/home/20221107005477/en/

For more information, please contact:

Murata Manufacturing Co., Ltd.

Wakana Nakamura, prsec_mmc@murata.com

Corporate Communications Department

Source: Murata Manufacturing Co., Ltd.

FAQ

What is the significance of Murata's BLM21HE series?

The BLM21HE series offers advanced noise suppression solutions critical for modern vehicle designs, ensuring high integrity of data transmission.

How does the BLM21HE series enhance vehicle power line noise suppression?

It achieves high impedance at high frequencies, crucial for suppressing noise in high-current circuits.

What applications can utilize the BLM21HE chip ferrite beads?

They are designed for wireless battery management systems and vehicle-to-vehicle communication systems, among others.

What operational temperature range does the BLM21HE series support?

The series supports operational temperatures ranging from -55°C to +150°C.

What are the key benefits of the BLM21HE series for automotive OEMs?

The series prevents high-current power lines from interfering with vital data, while reducing power loss and thermal management requirements.