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

Author: EIS Release Date: Mar 20, 2023

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.