Samsung Galaxy Tab 3. SM-T311 Bad Capacitor

[mpikou]

Greetings all.

I would really appreciate some information about the following capacitor which seems to be fried. Hopefully, replacing it will solve the problem.

The capacitor says Λ 157j 43721

I guess this is a tantalum capacitor, 150uf, 6.3V ?
Does the 43721 indicate something important?
Is it important to find out the ESR?

Thanks a lot in advance.
Attachments included

[stj]

Re: Samsung Galaxy Tab 3. SM-T311 Bad Capacitor

somethings not right in that pic.
i'v never seen a cap burned like that.
i'm more inclined to think it got damaged by the chip next to it or even someone trying to resolder the chip.

[mpikou]

Re: Samsung Galaxy Tab 3. SM-T311 Bad Capacitor

That was my initial thought also.
But everything around it looks in perfect condition

When giving power, this capacitor only gets really hot. REALLY hot.

[stj]

Re: Samsung Galaxy Tab 3. SM-T311 Bad Capacitor

partial internal short?
possible

[mpikou]

Re: Samsung Galaxy Tab 3. SM-T311 Bad Capacitor

So, is it possible for someone to confirm my assumption about the specs of this capacitor?

[stj]

Re: Samsung Galaxy Tab 3. SM-T311 Bad Capacitor

remove it, then meter the voltage across the pads.

[Th3_uN1Qu3]

Re: Samsung Galaxy Tab 3. SM-T311 Bad Capacitor

Slice it off using a sharp blade. Power it on. Likely to work. But do put a replacement in before calling it done.

[kc8adu]

Re: Samsung Galaxy Tab 3. SM-T311 Bad Capacitor

https://www.digikey.com/product-deta...0-1-ND/4556197
seen this before.
a junk power supply that overshoots is the cause.

[mpikou]

Re: Samsung Galaxy Tab 3. SM-T311 Bad Capacitor

thanks!