Murata Launches New Chip Ferrite Beads for Automotive Applications

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Murata has introduced the BLM18KN_EH series of chip ferrite beads for noise suppression in power lines at temperatures up to 175°C. Target automotive applications include engine and transmission electronic control units (ECUs) and turbo motor controllers. The components also meet AEC-Q200 qualification requirements. The new line is available in a 0603 size with dimensions of 1.6 mm × 0.8 mm. The devices have low direct current resistance (Rdc) making it compatible with large currents and low power consumption. The solution also delivers a wide operating temperature range and a rated current from 740 mA to 4,000 mA (−55°C to +125°C), 490 mA to 2,600 mA (+150°C), and 10 mA (+175°C). The typical impedance at 100 MHz ranges from 26 Ω to 1000 Ω.

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