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Automotive Ethernet IEEE 100BASE-T1 Compatible MX74 Series Board-to-Cable Connector Has Been Launched

June 2, 2022
JAE has developed and launched the MX74 Series, an Automotive Ethernet standard IEEE 100BASE-T1 compatible connector featuring excellent quality and high-speed performance.
MX74 Series Board-to-Cable Connector

Along with the progress of advanced driver assistance systems (ADAS) in recent years, there has been an increase in high performance in-vehicle components such as cameras and sensors. As a result, in-vehicle networks must transmit large amounts of data at high speeds, and Ethernet is increasingly being adopted for the communication between electronic control units (ECUs) or with other end-point devices.
Connector harnesses are also required to handle the high speed and low latency data transmission with higher signal quality.

JAE has developed the MX74 Series board-to-cable connector as an IEEE 100BASE-T1 compatible product, standardized at IEEE 802.3bw, featuring high quality transmission. This product is used with unshielded twisted pair (UTP) cables, contributing to the lighter weight of vehicle bodies.

*IEEE is an organization in the field of electrical and information engineering and a technology standardization institution based in the United States.


  • Compatible with IEEE 100BASE-T1 Automotive Ethernet differential transmission. Meets the transmission characteristics of IEEE 100BASE-T1 Definitions for Communication Channel Version 1.0 published by OPEN Alliance Inc.
  • UTP cable is applicable
  • Provided as an individual connector for the socket side (please contact us for harnesses)
  • 2 position products have 2 key codes with different colors

*Open Alliance is a standards organization formed to coordinate Automotive Ethernet technology specifications.

Applicable Market

Connection for Automotive Ethernet

General Specifications

No. of Contacts 2, 4 positions
Rated Current 3A
Rated Voltage 30V
Operating Temperature Range -40°C to +105°C
Dielectric Withstanding Voltage AC 1,000V (energized for 1 minute, mated state)
Insulation Resistance 100MΩ or more (mated state)
Applicable PCB Thickness 1.2 to 1.6mm
Insertion/Withdrawal Force 66.7N or less
Applicable Wire UTP(AWG#26)

Part Number

Pin Header

No. Part Number No. of Contacts Key Code (Color) Features
1 MX74B002HFA 2 A (Black) Right angle
2 MX74B002HFB 2 B (Gray) Right angle
3 MX74D002HFA 2 A (Black) Right angle/hold down
4 MX74D002HFB 2 B (Gray) Right angle/hold down
5 MX74B002VFA 2 A (Black) Straight
6 MX74B002VFB 2 B (Gray) Straight
7 MX74B004HFA 4 A (Black) Right angle


MX74 Socket

MX74 Series (Automotive Ethernet 100BASE-T1)(For more details) >

MX74 Series image

Information and details given here are as of the date of publication. Please note that the details may be changed.