Hello.

What part is this?
Please, help me.

Thanks

 

Hello.

What part is this?
Please, help me.

Thanks

Diode 1N5817.
See PDF:
ADDED:
Different manufacturers - different marks:


=====================================================================
ADDED: one more manufacturer:
Datasheet

 

Diode 1N5817.
See PDF:

If was a 1N5817, mark would SS12, no?
Discribe in datasheet.

????

 

Diode 1N5817.
See PDF:
ADDED:
Different manufacturers - different marks:
View attachment 295494

I am stil in doubt, because can be a 58 code and 17 year buit.
I not found a SMD code marking with 4 digit in line to compare.
I need to know.

 

1N5817 seems correct to me.

 

I not found a SMD code marking with 4 digit in line to compare.

Why do you say that?
The one posted in post #2 does.

Your diode has 5817 on it, and it has catastrophically blown which overcurrent through a diode could cause, so I also vote that it is a 1N5817 diode.

 

Diode 1N5817.
See PDF:
ADDED:
Different manufacturers - different marks:
View attachment 295494

=====================================================================
ADDED: one more manufacturer:
Datasheet
View attachment 295510

So, i guess your last post make sense.
Marking code is identical.
I will use this one.
Tank you so much.

 

It is a diode, as those extra green wires are to allow more current to pas through it. The pcb traces are probably not heavy enough for the current.
But, find out what caused the failure in the first place, else the replacement will blow as well.

 

A couple of SMD code ID keys...
https://smd.yooneed.one/
https://www.electroschematics.com/wp-content/uploads/2013/04/SMD-code-book.pdf