Murata Introduces 1210 Common-Mode Choke for 10Base-T1S Automotive Ethernet

Uploaded image Murata Manufacturing has commercialized the DLW32MH241MX2, a 1210-size (3.2 × 2.5 mm) metal-terminal common-mode choke coil developed for 10Base-T1S in-vehicle Ethernet. The AEC-Q200 qualified device satisfies the OPEN Alliance Class 3 requirements for both 240 µH common-mode inductance (Scc21) and 10 pF maximum parasitic capacitance (Cp), supporting 10 Mbps automotive Ethernet networks. Mass production of the DLW32MH241MX2 has already begun.

Meets OPEN Alliance Class 3 Requirements

The DLW32MH241MX2 has been developed specifically for 10Base-T1S applications, meeting the electrical requirements defined by the OPEN Alliance specification for common-mode choke coils.

The device provides 240 µH common-mode inductance at 0.1 MHz, a rated voltage of 80 V, rated current of 70 mA, and operates across a temperature range of -40°C to +125°C. The component is qualified to AEC-Q200 for automotive applications.

Metal-Terminal Construction

Murata developed the common-mode choke using its winding and ferrite assembly technologies together with a metal-terminal construction. The component is intended for designers implementing 10Base-T1S interfaces as automotive Ethernet continues to expand into vehicle communication networks.

Learn more and read the original announcement at the Murata website.

Technology Overview

10Base-T1S is a single-pair automotive Ethernet standard supporting communication speeds of up to 10 Mbps. Common-mode choke coils suppress common-mode noise on Ethernet lines while allowing differential data signals to pass with minimal attenuation.

Frequently Asked Questions

What is the Murata DLW32MH241MX2?

It is a 1210-size metal-terminal common-mode choke coil developed for 10Base-T1S automotive Ethernet applications.

What standards does it meet?

The component satisfies the OPEN Alliance Class 3 requirements for common-mode inductance and parasitic capacitance used by 10Base-T1S networks.

Is it automotive qualified?

Yes. The DLW32MH241MX2 is AEC-Q200 qualified and operates from -40°C to +125°C.

Murata

Murata Manufacturing Co., Ltd. is a global leader in the design, manufacture, and supply of advanced electronic materials, components, and multi-functional modules. The company’s innovations support applications across communications, automotive, healthcare, and industrial systems.