Pico PSU advice

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Plasmator Offline
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Posts: 10
Joined: Feb 2013
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Post: #41
I just received my PICOPSU-160-XT to be used with a 120W (12V 10A) power brick.

However, I seriously doubt the PicoPSU DC Jack (Female 2.5mm 5.5mm) can handle > 5A. The one attached to the detachable harness looks really "cheap" compared to the ones I have from DigiKey.

For example, these from DigiKey can handle 5A and are constructed way better :

SC1048-ND
http://www.digikey.ca/product-detail/en/...-ND/109407

SC1150-ND
http://www.digikey.ca/product-detail/en/...-ND/241926

SC1390-ND
http://www.digikey.ca/product-detail/en/...ND/2238433


So the question is how safe is it to use the provided DC Jack on the picoPSU ?

Should we be concerned about exceeding the 5A rating on the DC Jack ?



(2012-05-11 04:02)Dougie Fresh Wrote:  I'd read somewhere that the max amperage rating on the 2.5mm*5.5mm jack was 8.5A. I will try to find the information again. A 120W 12V adapter would be 10A so that would exceed the spec for the jack and possibly create a hazard (melt? fire?). If I can find it I'll post it.

[Edit]
Found it. "Input current should not exceed 8A. For current higher loads, we suggest using a 2x2 mini-FIT JR as an input connector." It's actually in the 150W picoPSU manual and it's talking about the wiring harness with the 2.5mm*5.5mm barrel jack. So, maybe it's 8A, not 8.5A which I'd assumed since the largest single pin AC adapter they sell is 102W.

http://resources.mini-box.com/online/PWR...manual.pdf
find quote
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