On Mon, 24 Feb 2003, Jai Dhar wrote:

*>Correct me if I'm wrong, but doesn't using a headphone jack present the
*>problem of temporarily shorting your circuit as you insert the male part of
*>the plug? Unless of course, your power will be off... but as you insert the
*>plug, the contacts will all be touched at some point - causing a short. Again,
*>not too sure about this, but this is why I avoided using one in my project.

The phone jack will short the plug during insertion, but not the tip
contact in the female receptacle. Still, I would not put unprotected power
through it. There are lots of tiny high quality connectors available, if
you have some money (Lemo, Canon etc) or are buying quantity. Otherwise
imho stick with something widely available. The PS/2 style mini DIN is
widely available and small enough for six (or eight) contacts, and only
requires a simple round hole (instead of the strange dies required to
mount other miniature connectors).

Peter

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