New common-mode choke is ideal for demanding automotive applications

15-04-2019 | Murata | Passives

Murata has announced the sampling of what is claimed to be the world’s first common mode choke coil created to be completely compatible with the automotive high-speed (1Gbps) LAN standard, 1000BASE-T1. The new DLW32MH101XT2 is said to be the industry’s smallest common mode choke coil for 1000BASE-T1 applications.

Vehicle technology has rapidly developed in recent years to include ADAS and sophisticated IVI while moving ever closer to wholly autonomous operation. As a result, vehicle communication busses transport increased-bandwidth data from higher resolution image sensors and more complex ECUs. To sustain this traffic, the 1000BASE-T1 standard is anticipated to become widespread in the future.

The device supports the S-Parameter characteristics specified by the OPEN alliance automotive network standard organization and satisfies the characteristics for noise filters in 1000BASE-T1 communications. Through the application of the company's winding technology and using a unique winding structure, the device is the smallest currently available, measuring just 3.2mm x 2.5mm x 2.5mm and weighing just 0.064g. It provides an inductance value of 100uH and a typical DC resistance of 2.6Ohm and is rated for currents up to 100mA.

Compliant with the AEC-Q200 automotive standard, the common mode choke coil provides an extended temperature range of -40C to +125C, making it ideal for demanding automotive applications.

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