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820-00840 - replacement inductor

A

acowan

Member
Im looking for a replacement for L6995 on the 820-00840 board. It's specified as 10uH / 1.4amp / 0.4ohm part number - PIYA25201B-SM. I cannot find the exact device, usual searches turn up nothing for a PIYA 2520 1B. Additionally i cannot find anything as small as this device .. The remains of a burnt one are on my desk and it looks like a solid state inductor.

So

Can anyone recommend a source of these or equivalent part?

What are the general requirements of an inductor sitting inline on the PP3V3 power rail
 
D

dukefawks

Administrator
00165 coil is different value as 3V42 chip is different type.
Just order some 00875 donor board from Aliexpress, same as 00840 but a few details and cheap. But then remains the question why L6995 got burned, I have never seen this happen so something must be going on here.....
Check for short in 3V3_G3H first.
 
A

acowan

Member
Good plan,

Oh L6995 didn't get burned, well not by any board fault. It got burned by me, well it got heated up then crushed - ham fists
 
2informaticos

2informaticos

Administrator
Staff member
I just checked 00165 schematic and L7095 has same 10uH and not big difference of internal resistance.
The problem is that is designed for much lower current, 0.85A instead of 1.4A (almost half value).
It will not last too much time as replacement.
Also, output voltage could be slightly different...
 
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