News

Commercialization of common mode choke coils for automotive Ethernet for high temperatures of 150°C

Author:Murata Tsuneo
Release on:2021-01-04

Murata Manufacturing Co., Ltd. (Headquarters: Nagaokakyo City, Kyoto Prefecture, Representative Director and President: Tsuneo Murata), will launch Ethernet for in-vehicle use.^*1(100BASE-T1^*2) Common mode choke coil (hereinafter referred to as CMCC), and the product "DLW32MH201YK2" (hereinafter referred to as this product) corresponding to the operating temperature range of -55°C to +150°C has been commercialized. And will start mass production in December 2019.

In recent years, with the high-functionality of automobiles, facing ADAS^*3Waiting for autonomous driving, the ECU mounted on the car^*4Increasingly, as the network connected to it, differential transmission such as on-board Ethernet is adopted^*5Ways of high-speed interfaces continue to increase. Under this trend, the demand for components that can be used in high-temperature environments such as engine compartments is also increasing.

This product adopts a perfect combination of metal terminals that can absorb the stress that occurs with temperature changes, exclusive materials and product design. Compared with the operating temperature range of -40°C to +125°C of traditional products, this product achieves a A temperature range of -55°C to +150°C that can be used in severe temperature environments. And by keeping the product miniaturization, ECUs can be deployed in a larger area.

In the future, the company will continue to develop products that meet market needs and contribute to the enhancement of in-vehicle communication networks, one of the basic technologies for autonomous driving.

Main features of this product

Support vehicle Ethernet (100BASE-T1)
Achieved an operating temperature range of -55°C to +150°C
1210 size (3.2mm✕2.5mm)
Support AEC-Q200^*6
Suitable for rated voltage 80V

product information

Wire wound common mode choke coil
DLW32MH201YK2
Click here for detailed product information.

Related websites

CMCC selection guide for vehicle network
Please see here for the selection guide.

^*1		Car Ethernet: One of the computer network standards used in cars.
^*2		100BASE-T1: UTP (Unshielded Twist Pair cable) "The in-vehicle communication standard with data transmission speed up to 100Mbps.
^*3		Advanced Driving Assistance System: Advanced Driving Assistance System.
^*4		Electronic Control Unit: The electronic control unit of the car.
^*5		Differential transmission: a method of using two signal lines to transmit using the voltage difference between the signal lines.
^*6		AEC-Q200: One of the standards established by AEC (Automotive Electronics Council).