Jinx wrote:

>So where are we up to with this ?
>
>Options so far -
>
>  
>
My take is now:

>TVS across transistor
>  
>
if warranted for high reliability

>RC snubber across relay coil
>  
>
Actually this seems to work well.

>RC on transistor base to slow switch-off
>  
>
not familiar with this.

>Diode (of some sort) across relay coil
>  
>
Probably normal useage

>Is there any consensus as to the preferred order ?
>
>eg if cost is not an issue / if cost is an issue
>  
>
diode is cheapest solution

>eg if components are not to be grossly over-rated
>
>  
>
--Bob

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