PCB Pre Alignment Module -precision connector mating

PCB Pre Alignment modules enable precision connector mating.  They enable an exact plugging of many electrical contacts without damage. At the same time they meet the requirements with as much clearance as possible between the guide rails of an assembly carrier and the plug-in boards.

Please scroll down for further information or alternatively contact [email protected] for more information, samples or a quotation.

Data Sheets and Resources


Product Enquiry


PCB Pre-Alignment Modules

If secure and damage-free plugging of plug-in boards is required, we offer the use of PCB pre-alignment modules.  They are available in different variants for various PCB thicknesses with electrical contact or coding.


Various applications require pre-alignment modules, including telecoms and data communication, industrial automation, medicine, transportation and many more.

  • The pre-alignment module is a solution for the dilemma posed by high pin-count hard-metric connectors and the need for precision connector mating combined with sufficient play between sub rack guide rails and printed-circuit board cards.
  • The pre-alignment module consists of solid metal guides that offer several optional functions: Eg. The electrical contact model. Shielding is low resistant because of the gold plating and therefore allows extra current to flow with 40A at 20ºC through a large diameter. This large pin diameter enables a wide capture range of >2mm. The PCB is adequately centred and guided as a result.

Technical Specification

  • Fastening: The pre-alignment pin with fastening thread is fastened on the backplane and is available for PCB thickness of 2.5 to 6mm, and 6 to 8mm.
  • Guide Bush: The guide bush is mounted on the daughter card with an M4 or M5 screw.
  • PCB Thickness: The PCB thickness for the daughter card can be 1.6 to 3.5mm, or 3.5 to 5.5mm.
  • Catalogue PDF: Please refer to catalogue pdf for further information.

Finally, we are an authorised distributor for ERNI.  If you would like to know if the pre-alignment modules might be suitable for your application, please contact our team today: [email protected].  Alternatively you can phone: 01494 791336.

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