[TowerTalk] 12V transient/noise filtering?

[Lux, Jim]

I'm looking for an off the shelf transient/noise filter for 12V (yeah, 
14.4 or 13.8V)


The application is that there's motors and relays running off the 12V 
bus, which is noisy, but I have stuff needing a cleaner 12V and 5V 
(getting 5V from 12V is easy with automotive USB power widgets).

Ideally with power pole connectors.


I could design something with LC and back to back Zeners, etc. but I 
would rather just buy something.