does not recommend the use of multi-port SMT connectors.
Please call us so we can discuss the assembly issues involved
with this type of connector. Xmultiple does have SMT connectors
with and without magnetics in our product lines however
users must understand the problems in assembly before
using this type of connector. The fact that any connector
is bulky and large make them more difficullt to assembly
in a surface mount process. In most cases the connectors
must be reworked by hand after the SMT placement process
In regard to assembly of surface mount connectors, SMT
types of connectors have locating pins to assist assembly.
However, SMT connectors do not have other hardware elements
to secure them to the printed circuit board. The only
attaching elements of SMT connectors are the shielding
pin, the alignment post and the contact pins which are
attached to the printed circuit board with paste which
has heat applied to bond the connector to the printed
circuit board. The SMT connectors strength
is based upon the configuration of the leads and the proximity
of the connector housing to the printed circuit
board. The forces to be applied to the connectors must
be determined in the design phases of the product so the
proper connector scheme can be used to provide a reliable
Since surface mount connectors are not torqued down then
this connector will not have the strength for many product
requirements. Therefore, thru-hole connectors are in most
cases the best solution for a product design. Please refer
to the standard document IPC-A-610 section for Surface
below is a SMT paste assembly machine.
SMT assembly paste machine holds the connectors and components
which are to be placed onto the printed circuit board,
and also acts as the soldering medium.
the paste is applied to the printed circuit board, the
boards then pass through "pick-and-place" machines,
also called "chip shooters."
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