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Does anyone have any recommendations for an FFC/FPC connector that locks the flex cable contacts directly to pads on the PCB rather than the connector bed? I am trying to get a VERY low inductance connection system sorted.

Ta

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  • \$\begingroup\$ Doesn't the answer to your other question help? Some of those board-to-board connectors are only 0.4mm high. They should have low inductance. \$\endgroup\$
    – stevenvh
    May 15 '12 at 15:19
  • \$\begingroup\$ @stevenh Ta, yes that helps some, but I want to check out several options, if something like this exists it would probably be better again. \$\endgroup\$
    – Toby
    May 15 '12 at 15:34
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There are heat sealed flex cables that can be attached directly to a PCB using conductive heat-activated adhesive, however they cannot be removed after being attached and the assembly equipment recommended for reliable joints is not cheap.

If you are satisfied with one-time connection, I would suggest looking at rigid-flex PCBs where the flex and rigid portions are manufactured together.

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It is probably a bad idea to try to make a contact between a FFC/FPC cable and a coppertrace on a PCB directly.

  • It will be difficult to have a constant pressure on the contacts. Forces from springs on top of the FFC will accumulate as a line load, bending away a molded housing at the middle of the FFC cable, as it has no mechanical counterpart.
  • Copper track surfaces probably must be gold plated to be even enough for a constant pressing force.
  • The housing needs to get its counter force from soldered housing contacts applying continuos stress on the solder and copper tracks.

I guess, you won't find a connector for these causes.

You better go for a board-in solution.

I found this one here: FUN FFC/FPC board in connector

I have seen board-in crimp style connectors at TE's booth at productronica some years ago, but I'm unable to find them at the moment.

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  • \$\begingroup\$ your link refers to a local file on your computer. \$\endgroup\$
    – bhillam
    Dec 20 '15 at 12:48

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