Tiny >1GHz >1A automotive common-mode choke

Murata has created a 1210 (3.2 x 2.5 x 2.5mm) wide-band wire-wound chip common mode choke that will attenuate noise on 1.2A automotive supply rails at over 1GHz.

Murata DLW32PH122XK2 smd common mode choke

“It is of particular value when addressing the power supply line noise issues now occurring as driver assistance hardware connects with wide frequency band sensors and imaging equipment such as radar and lidar,” according to the company.

Murata DLW32PH122XK2 smd common mode choke

DLW32PH122XK2, as it will be known, is AEC-Q200-qualified and typically exhibits 1.2kΩ impedance at 100MHz and 900Ω at 1GHz, while resistance is typically 50mΩ.


Ratings are 60Vdc (150V withstanding), and 1.2A from -40°C to 105°C, derating linearly to 1A at the maximum of 125°C.


The DLW32PH122XK2 product page can be found here

 

Steve Bush

Steve Bush is the long-standing technology editor for Electronics Weekly, covering electronics developments for more than 25 years. He has a particular interest in the Power and Embedded areas of the industry. He also writes for the Engineer In Wonderland blog, covering 3D printing, CNC machines and miscellaneous other engineering matters.

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