Hi, Daan,

Are all the connector pins being used? Frequently, several to many pins are
not used, in which case why not design so that pins adjacent to the 220V AC
connection are not connected to anything else. This will effectively
increase the spacing between the high voltage and other signals.

Peter Duncan




                    "d. terstegge"
                    <[log in to unmask]        To:     [log in to unmask]
                    GROUP.COM>                       cc:     (bcc: DUNCAN Peter/Asst Prin Engr/ST
                    Sent by: TechNet                 Aero/ST Group)
                    <[log in to unmask]>                Subject:     [TN] Isolation between connector pins


                    11/26/01 11:45 PM
                    Please respond to
                    "TechNet E-Mail Forum."






Hi Technetters,

On one of our new designs must be able to withstand a 220 Volt AC between
two pins of a SMD-connector with a spacing between the pins of about 0.5
mm.
This seems a bit on the critical side, and the designer asked me if it is
possible to have some extra isolation between these pins. I was thinking
that a drop of solderresist that we sometimes use for repairs would do the
job, but I'm not sure that it'll work. Maybe someone can give me a better
advice ?

Daan Terstegge
SMT Centre
Thales Communications
Unclassified mail
Personal Website: http://www.smtinfo.net

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