MX84B Series for in-vehicle ECUs Using UL94 V-0 compliant Flame Retardant Materials (MX34 Series Using Different Insulator Materials)

MX84B Series for in-vehicle ECUs Using UL94 V-0 compliant Flame Retardant Materials by JAE electronics

JAE has developed the in-vehicle ECU connector "MX84B Series" that uses flame retardant resins compatible with UL94 V-0 flammability rating for in-vehicle safety.

Recently, environmental regulations to prevent global warming have spread worldwide, and regulations on vehicles, such as the Chinese NEV (New Energy Vehicle) regulations and the ZEV (Zero Emission Vehicle) regulations in California, USA, have progressed.
In order to comply with these regulations, the markets for environmentally friendly vehicles, such as EVs and PHEV, are growing.
In China, a high flame retardant rating is required for parts used in environmentally friendly vehicles to improve the reliability and safety.

To meet these needs, we have developed the MX84B Series, which uses UL94 V-0 compliant resin material with consideration for safety of environmentally friendly vehicles.

The MX84B Series is a product using highly flame-retardant materials for the insulator of our conventional MX34 Series, which is used in a wide variety of body-related ECUs for switches, sensors, BMS' (Battery Management System), and others.

For this reason, the PCB foot pattern is also compatible so it can be used without changing board design.

We will continue to expand the line-up of products for environmentally friendly vehicles by expanding the variations of MX84B Series, including in-line connection types, and pin count variations that are currently being developed.

Note) UL94 V-0: Flammability specifications for plastics materials by UL LLC (testing and certification laboratory)


  • Insulator materials compliant with the flame retardant standard UL94 V-0
  • MX34 Series using different insulator materials
  • Terminal size: 0.64 mm (pin side width)

Applicable Markets

Various ECUs / BMSs for in-vehicle bodies, etc.

General Specifications

No. of Contacts 20,28
Operating Temperature Range -40°C ~ + 85°C
Maximum Operating Temperature 130°C (Ambient temperature + temperature rise due to conduction)


Angle Pin Header

Component Material / Finish
Pin Housing (Color: black) SPS-GF30 (flame retardant UL94 V-0)
Pin Terminal Brass / Sn plating


Socket Housing

Component Material / Finish
Socket Housing (Color: black) PBT (flame retardant UL94 V-0)
Retainer (Color: dark gray) PBT (flame retardant UL94 V-0)
Angle Pin Header Socket Housing
MX84B Angle Pin Header MX84B Socket Housing

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