Re: DC relay latching voltage

On 8/25/2024 8:30 AM, John Robertson wrote:

<https://www.te.com/commerce/DocumentDelivery/DDEController? Action=srchrtrv&DocNm=13C3311_AppNote&DocType=CS&DocLang=EN>

 Is there an index to these useful Application Notes?

No idea.  I'm just leaning on lessons learned decades ago and searching for
documents that would likely confirm those issues.

I only found this when I searched for "application notes":
 https://www.te.com/en/products/relays-and-contactors/relays/intersection/application-notes.html
 And did you happen to write some of them by chance?

No.  I don't publish anything "for general consumption"; only specific
issues for specific audiences.  Not enough time in the day to do the
things I *want* to do while considering "optional" efforts.
Don't kill yourself worrying about this sort of thing for a pin table.
You're likely not as concerned with durability.  The board's already
(likely) designed.  And, it's already got an established (tolerable?)
level of EMI.
Rather, it should be seen as a counter to the "old saw" that you *just* use
a recirculating diode without considering the consequences.  Just like
considering how to *drive* the coil based on how it will be used.
[Remember the "pull in" coils and "end of stroke" switches on flipper
solenoids?]