chips on the arduino pro micro board

I have a arduino pro micro
And its working yet but on the board there are two yellow or red or orange chips behind the micro port for me one of then is has been removed but it still working what are those two chips and is there any proboem that im using the biard with one of them??

i upload a photo of it

i have Arduino pro micro and i removed a chip i think name is 106
but it still works
what exactly this chip do and what will happen if i use with just one C106 chip on my board

They are capacitors - Perhaps it MAY cause an issue in the future, but it MAY just work.

Top one looks like a 10uF cap.
Who makes it? I don't see it listed as an Arduino product.

Looking at a Sparkfun Promicro, looks to be the same cap at both locations.

It's a capacitor. The code on it tells you the value is 10 uF (10 x 10^6 pF).

This is a decoupling capacitor for the power input from the USB cable. It makes the voltage level more stable. Without it, the voltage will have more fluctuations and you might find that the microcontroller is unreliable under certain circumstances.

The reference number for this part on the schematic is C6:

Clipboard01.png

Clipboard01.png

I've merged your cross-posts @sam-alba1241 (AKA @influxer).

Cross-posting is against the rules of the forum. The reason is that duplicate posts can waste the time of the people trying to help. Someone might spend 15 minutes (or more) writing a detailed answer on this topic, without knowing that someone else already did the same in the other topic.

Repeated cross-posting will result in a suspension from the forum.

In the future, please take some time to pick the forum board that best suits the topic of your question and then only post once to that forum board. This is basic forum etiquette, as explained in the sticky "How to use this forum - please read." post you will find at the top of every forum board. It contains a lot of other useful information. Please read it.

Thanks in advance for your cooperation.


I have also permanently banned this duplicate account. We only allow people to have one account on this forum.

that is a tantalum capacitor

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