Variants include pre-leading contacts to protect sensitive electronics
A new series of miniaturised PCB connectors has been introduced by HARTING as the har-flex series, which has pre-leading contacts which offer sequential switching that can protect sensitive electronics from damage during operational plugging and unplugging.
Thanks to their robustness, the miniaturised 1.27mm-pitch har-flex SMT connectors are seeing increasing use in modular electronic systems. End-users can often enhance their systems in the field by adding additional function modules or replacing existing modules. The har-flex connectors guarantee a secure electrical connection between the main module board and smaller boards.
In the event that the user neglects to first switch off the system and consequently plugs it in under load, sensitive electronics can be damaged. To avoid this, HARTING can now supply all angled har-flex male connectors in two different contact lengths, allowing the production of connector types with pre-leading contacts.
These contacts are 0.3mm longer in the mating face and ensure that grounding contacts are the first to make contact during insertion and the last to disconnect during unplugging.
Thanks to flexible contact loading, the angled male connectors can also be configured as variants with lagging contacts. During unplugging, these lose electrical contact before the other contacts, so that a system with the appropriate logic can detect imminent contact disconnection and execute certain functions such as data backup.
HARTING is offering the angled male connectors with pin counts of 6-100 on request, in custom contact configurations. The new variants enable HARTING to integrate even more intelligence at the field level and thereby enable appropriate solutions for Industry 4.0.