[sdiy] IC socket reliability/0.100 headers?

[Stewart Pye]

I have found 0.1" connectors to be unreliable in equipment I have been 
repairing. Often the contacts oxidise.

Does anyone know of a shroud or strain relief that is available so that 
the wires can be soldered directly to the PCB, but before you solder the 
wire to the PCB you push the wires through holes in this strain relief 
receptacle which then clips on to the PCB???

Regards,
Stewart.

On 1/22/2013 6:31 AM, David G Dixon wrote:
> I've used thousands of 0.1" wire-to-PCB connectors, and have never had one
> fail.
>
> I socket every IC, always, with machined-pin sockets, and have never had one
> fail.
>
>
>
>> On Monday 21 January 2013, 10:39:06, Dave Kendall wrote:
>>> I guess it's fair to say that MTA-type 0.100 style connectors can
>>> suffer from many of the disadvantages of IC sockets? They
>> do make life
>>> easy and neat, but I guess a soldered connection to a PCB pin with
>>> heastshrink for added mechanical strength is possibly the most
>>> reliable.
>> No, you veered into the _other_ lane now.  There is no
>> reliable way to solder a flexible cable to a board if it can
>> still move, so if you can't bring whatever is at the other
>> end of that cable directly on board, you need a
>> calbe-to-board connection.  That's what these are designed to
>> do, the important difference to an IC socket is that the
>> socket and the pin are mated.  If you really don't need the
>> cable to be removable (usually on one side only) you could
>> skip the socket by using press-fit pins crimped to the cable.
>>
>>> Any comments on that, or long-term 0.100 fail stories?
>> As long as the cables are crimped correctly you'd need really
>> adverse conditions to require moving up to even better
>> connectors.  Make sure there's no mechanical strain on them
>> and they should be fine.  The ones I've seen fail have mostly
>> been mistreated during assembly or soldering or overloaded
>> due to a short circuit.
>>
>>
>> Regards,
>> Achim.
>> -- 
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