Problem is that the relay's magnet and the armature are made to touch
mechanically to "lock" when energized.  It is metal against metal, and
this ensures a good "lock". Small relays have a very small physical
movement at the armature, so they can not afford to have a thin shock
absorbing membrane between both parts to reduce noise.  Using a Voltage
lower than the coil specification can helps to reduce noise, since the
armature impact will be reduced.

Probably a relay actuated by "muscle wire" would do very little noise...
:)

Wagner

Jane Ifurung wrote:
>
> Is there a way to lessen the relay noise when
> switching? I'm using an OMRON +5V relay (G5V-2). It's
> so noisy....
>
> =====
> *~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~
> Jane Ifurung