The BLM Series of chip ferrite beads from MuRata Manufacturing has been crafted to function nearly as a resistor at noise frequencies–a characteristic that greatly reduces the possibility of resonance and leaves signal waveforms undistorted. This series is effective in circuits without stable ground lines because it does not need a connection to ground. The nickel barrier structure of the external electrodes provides excellent solder heat resistance. These beads generate impedance from relatively low frequencies. Consequently, they provide effective noise suppression in a wide frequency range–30 MHz to several hundred MHz. Learn more about these beads and other options for filtering in automotive applications in MuRata’s online catalog.
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Interference Technology
Established in 1970, Interference Technology helps EMI/EMC engineers find solutions to their various testing, design, application and regulatory issues by publishing articles, news and other practical content. We help suppliers in these areas to find the right customers for their components, materials, test equipment and services through a wide range of marketing services, including lead generation, branding, market research and events. The publication is available in various printed and electronic media formats, with readers in over 60 countries. We also publish issues in local languages in China, Japan and Europe.