Looking for replacement part

[Paul-ASC]

I have a  AT-MIO-16DE-10 that has been physically damaged. A glance at the board noticed that the  " L4" inductor has been broken, I am wondering if there is a part number to replace this component.

[ChrisR.]

That inductor is probably a 3.9uH noise filter.  The board should work with it shorted.  But I'd feel more confident if you attached an image including some of the surrounding parts to make sure we're talking about the same component.

Chris

[Paul-ASC]

Thank you for you insight. Please take a look and let me know if it still holds.

[ChrisR. · Accepted solution]

Yes, that's the part I thought it was.  Desolder it and replace it with a short circuit.  If the board works in that state, then you can replace the short with a few uH of inductance.  The damaged part is 3.9uH, and there's also room to put a through-hole part instead.  The part number for the through-hole option is Fastron HCCC-3R6M-02.  The surface-mount part is Sumida CD43NP-3R9MC.  Any part similar to either of those should work fine.

IIRC, the benefit of the inductor is pretty subtle; I think it reduced the amount of 250kHz power supply noise in the analog output.  So you may be just fine without it.

Chris