I thought so, but that means AC zero cross-over switching would not be there
or have to be specially considered, ??

See NAIS AQZ204, rated 400V AC/DC 0.5A.  You would need to put additional
external diode when doing DC.
I bought a AQZ202 (60V type) sometime ago, and RS components charge me about
US$15.00 for one.

Cheers, Ling SM

> > Can you enlighten me why you need something that can switch 230Vac as
well
> > as some relatively low DC voltage at the same time?
> >
> > Should you be using different type of switches? I am puzzled as I can't
> > think of many reasons.

> The switching would be either/or.
>
> I.E. Either 230Vac Or 18V dc.
> I just want to use a single common component to do this and as I said in
my OP,
> I think that the frequency of switching would rule out a relay.

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