Today's board designs need a flexible and economic connector concept. For customers, this means the availability of complete ranges with all connector technologies at an attractive price. For connector supplier Erni, the answer is modularisation.
The company's right angle D-Sub generation has been designed on this basis. Its THR-D-Sub connectors shown are part of a comprehensive range. THR (through hole reflow) means use of the reflow soldering process. The expression 'pin in paste' is also frequently used. The background to this worldwide trend is a huge saving in the manufacture of assemblies, as additional manufacturing stages (selective soldering, pressfit etc) including production methods can be eliminated. There is no need to leave the SMT production line.
Erni characterises its THR-D-Sub connectors by the following features:
* Fully automatic processing due to an integral suction area and tray packaging or tape and reel packaging.
* Suitable for vision systems due to high-contrast image with regard to contacts and insulating bodies.
* The insulating body is made of heat-resistant thermoplastic and is therefore suitable for conventional tin/lead as well as lead-free reflow or vapour-phase soldering processes.
* Soldering metal fixing bracket able to take insertion, withdrawal and cable handling forces.
* On customer request, rotation-protected, pre-mounted and ESD-compatible interlock accessories.
* Layout is compatible with the pressfit D-Subs, ie, a pressfit or soldered D-Sub can be replaced by an Erni THR-D-Sub on an existing series-produced assembly without changing the layout.
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