[Diy_efi] 25A Solid State Relay

[bcroe at juno.com]

A   DC solid state "relay" generally involves a power MOSFET 
transistor.  Be aware that 12V automotive circuits may contain 
spike voltages as much as 25 times normal.  While these 
may be too brief to affect most parts, even a microsecond can 
take out a MOSFET.  So a practical circuit will have some 
protection devices.  There are lots of MOSFETs in the Digikey 
catalog,  don't expect them to run continuously at their peak 
current rating.  

Bruce Roe

24 Jan 2003 "FR Wilk" <kd694j0538f at hotmail.com> writes:
> Does anyone have a few part numbers I might look for?
> 
> FR Wilk
> 
> > Anyone have a SS Relay for automotive use? 12V/25A?
> >
> > If not a commercial part, is there a schematic available for a 
> good design?
> >
> > Thanks,  FR Wilk

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