Dave Tweed wrote:
>> Yes, that should protect the transistor, but I still think that's the
>> wrong place to deal with the relay load dump. The relay dump current
>> now has to go from the relay, thru the bottom lead, thru the TVS, thru
>> the power supply, and then back to the relay. The voltages at the
>> transistor should be safe, but there will still be large voltage
>> spikes elsewhere.
>
> Where?

I was thinking of the impedence of the relay leads.  Although now thinking
about it more, even if they are significantly inductive it doesn't matter
since they are already carrying the full current.


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