The Murata Manufacturing Co., Ltd. commercializes the sheet-type ferrite beads BLM31KN_BH series for the power supply system and the 1206-size (3.2 × 1.6 mm) power supply with a guaranteed use temperature of 150 °C. This product is mainly used as a power supply line noise suppression component installed on the engine compartment and LED headlights, etc., which requires high temperature assurance. It has been expanded for the automotive market and has been mass-produced.
In recent years, in the automotive market, due to the development of electrification of various functions such as hybrid power and electric vehicles, the necessity of noise suppression measures has been increasing with the increase of conducted noise and radiation noise. For example, in the motorization of the powertrain, the number of motor circuits installed on the motor control circuit (when the charging rod is used) or the inverter circuit (without the electric bar) is increased, and a noise countermeasure component that supports a large current is required. In addition, in order to achieve weight reduction directly related to the increase in fuel consumption of automobiles, the high-temperature engine compartment configuration (mechatronics design) of the engine and the safe electronic control unit (hereinafter referred to as ECU) is continuously developed, and the squelch used in the ECU is continuously developed. The countermeasure component also requires high temperature assurance.
By working hard on the design standards of internal electrodes and external electrodes, Murata has successfully introduced a product that supports a large current (120 ohm / 4A at 125 ° C) suitable for the power line and can be used in the 1206 size at 150 ° C. Helps to design noise suppression countermeasures for such power lines.
Characteristics
Meets AEC-Q200*1 standard
Can be used in the range of -55 ° C ~ 150 ° C (there is a derated current rating * 2)
Small size (3.2 x 1.6mm), supports up to 4A high current
Effective for noise suppression at impedances up to 1000 ohms (at 100 MHz)
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GUANGZHOU SOWANGNY ELECTRONIC CO.,LTD , https://www.jerry-power.com