The ERNI/TE MicroBridge series 1.27mm wire-to-board automotive genuine/replacement connectors.

The ERNI/TE MicroBridge series 1.27mm wire-to-board automotive genuine/replacement connectors.


Specializing in the production and sales of genuine/substitute connectors, cable products, as well as custom processing of injection-molded parts and stamped parts.

We have consistently fulfilled the requirements of our customers from the automotive sector through the MicroBridge connector product group. The Wire-to-Board connector was developed based on the LV 214 / TLF 0214 and USCAR-2 automotive test specifications.

The MicroBridge connector meets the high requirements of the automotive sector, especially in terms of connection reliability. The ERNI industry exclusive patended double Insulation Displacement Connector (IDC) design with strain relief feature brings an exceptional performance in the challenging slow motion bending test introduced for automotive standards. Koshiri security and the optionally available electrical Connector Position Assurance (CPA) provide more secure and proper connection. Despite the compact 1.27 mm pitch, the MicroBridge is extremely robust and resists the vibrations in vehicles thanks to double-sided interlocking. The compact design is excellent for use in compact installation spaces.

The high temperature resistance of up to 150 °C allows the connectors to be used in areas exposed to demanding temperature conditions, e.g. close to LEDs in the headlights. It is not only the high temperature that stands out on the MicroBridge connector but also the V0 UL94 Flammability rating.The single-row IDC female connector is available with a 90° and 180° cable outlet. The male connector designed for Surface Mount Technology (SMT) is available as both a straight and angled version.

Color and mechanical coding for every pin count makes it easier to allocate connectors and prevent improper connection.

1.ERNI/TE | MicroBridge connector series | features:

* Due to the use of different plastics, an exact color matching of the male and female connectors cannot be guaranteed. The color shades of male and female connectors therefore usually differ within the basic color spaces.The used basic colors red, blue, green, and black differ so clearly that the color tones can be clearly assigned visually. Mechanical coding always helps prevent the connectors from being plugged into a mating part of a different color.

2.ERNI/TE | MicroBridge connector series | advantages:

Double Arranged Insulation

Displacement Termination

  • reliable contact due to the double arranged insulation displacement contact

Integrated Strain Relief

  • integrated strain relief helps protect the IDC connection from mechanical stress caused by cable movements
  • the ERNI industry exclusive patended Double IDC design with strain relief feature brings an exceptional performance in the challenging slow motion bending test introduced for automotive standards.


  • additional tongues at the female and grooves at the male connector allow a pre-alignment and provide an exact mating procedure
  • male contacts can not be damaged while improper or skewed mating

Electrical CPA (Connector

Position Assurance)

  • the electrical CPA enables the testing of a secure contact between female and male connector already during the mating process
  • the male connector uses a shortened test pin for the electrical CPA
  • the shortened test pin is used exclusively for testing secure contacting. It also has no signal or current transfer function
  • the electrical CPA is optional


  • outstanding retention forces on the circuit board
  • solder clips absorb mechanical stress and are able to withstand high shock and vibration loads

Connector Locking

  • double-sided interlocking
  • acoustic and haptic feedback of the interlocking
  • can be manually released without tools

3.ERNI/TE | MicroBridge connector series | Model/material number details:

50318-E 514983-E 505078-E 505018-E 504958-E 504898-E
504778-E 524444-E 515944-E 515094-E 514496-E 504445-E
524491-E 524481-E 524471-E 524451-E 524441-E 524431-E
524421-E 524401-E 524425-E 504405-E 504385-E 504345-E
504325-E 504305-E 504295-E 514889-E 504285-E 504275-E
504265-E 504255-E 504325-E

4.ERNI/TE | MicroBridge connector series | Application field:

The main applications for ERNI MicroBridge connectors are in the automotive sector. The MicroBridge product family fulfills the high demands of the automotive industry for mating reliability and ruggedness.

With a pitch of 1.27 millimeters, the connectors have a compact design while also being robust. They can be used in small areas and are temperature-resistant up to 150 °C. They guarantee secure connections even in high-heat areas such as near LED headlights. The connectors easily handle the vibrations that occur in the vehicle, thanks to the locking mechanisms on both sides.

Thanks to possible mechanical and color coding for any no. of pins, incorrect plug connections can be reliably excluded. The strain relief integrated into the connectors protects against mechanical loads.

Product Sales Overview on the JunctionX Platform:

JunctionX specializes in the professional production, distribution, and sales of connectors/authentic substitute connectors, wire harnesses, cable products, and customized injection-molded parts, stamping parts. If you want to purchase or learn more about product solutions, please feel free to contact us through the following methods.



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