Interconnection


Rationalised mounting and processing of Erni SMC series connectors

23 October 2002 Interconnection

In co-operation with users, Erni has developed various fixing methods for rationalised mounting and processing of SMC connectors. The small dimensions of SMC connectors mean they are well suited for surface mount technology.

Because of their low weight and thermostability these connectors can be mounted automatically. SMC series connectors can be positioned on the printed board with an automatic component inserter (vacuum). To provide a smooth, sealed surface for the vacuum suction unit, a mounting cover for SMC connectors is fitted over the insertion face of the connector. This mounting cover provides a sufficiently large area for the suction station.

With solder clips for fixing and plastic lugs for centering, SMC connectors are fitted with all the essential elements for surface-soldering. The solder clips have been developed so that the connectors can be inserted without excessive force into the PCB holes. On the PCB, the solder clips each require two soldering pads for SMD soldering.

Press-in clips are an additional fixing variant. These clips latch into fixing holes in the PCB. To produce the necessary force, the connectors must be mounted using a mounting device or crimping tool. The connectors are permanently fixed to the printed board by means of these clips, and can subsequently be automatically soldered. The development of the various fixing methods makes the processing of SMC connectors as easy as possible and have been developed in co-operation with Erni customers.



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