Hello there!
We are designing a family of consumer devices that will require an input DC power barrel connector on our PCB. It will be for +12vdc of various power levels. We will be able to purchase "off the shelf" UL-listed wall warts depending on the application. My question is, as I design our PCB to work with a PCB mount DC barrel jack, which is more common? 2.1mm ID or 2.5mm ID for DC power jacks with 5.5mm OD??? So far it looks like they both are "standards". So, which do I design for if I want to be most forward compatible? Does one of the options work with both plug types, but not vice-versa?
Switchcraft 2.1mm ID, 5.5mm OD $1.61 @ qty=1k
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=SC1330-ND
CUI 2.1mm ID, 5.5mm OD $0.19 @ qty=1k
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=CP-102A-ND
CUI 2.5mm ID, 5.5mm OD $0.19 @ qty=1k
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=CP-202B-ND
Thank you for any suggestions!!.... changing after we make several thousand will be much more difficult!
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