parts recognistion

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billakosgr

New Member

• Mar 22, 2012

• #1

Hello to all,

I am searching to find these two parts from a circuit but i did not find
anything to the entire internet.

i think because i am not speacial to electronics that the first in picture is a diode
and the second is an rectifier or i am wrong?

any help i will appreciate.

View attachment 62514
View attachment 62515

 

duffy

Well-Known Member

• Mar 23, 2012

• #2

The first picture may be a diode or transistor. The second picture is a rectifier.
The "house codes" stamped on surface mount are not often helpful.
Tell us more about the circuit they are used in.

 

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billakosgr

New Member

• Mar 23, 2012

• #3

the circuit is takes a 3v input and gives output until 6v
and also gives output watt's

View attachment 62551

you see the first at the center and the second down from it

 

duffy

Well-Known Member

• Mar 23, 2012

• #4

Oh, a switching regulator. The second is bound to be a schottky rectifier, like this - http://search.digikey.com/us/en/products/SSC54-E3/57T/SSC54-E3/57TGICT-ND/1091694

The scratch marks on the first image look like you were trying to get readings, what did you find?

The inductor on the bottom right in the last image appears to be broken. Anything that could hit it hard enough to break the ferrite like that could have broken traces. Are you sure you have a component malfunction and not a broken trace?

 

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billakosgr

New Member

• Mar 23, 2012

• #5

I see that it wright's AF9J but nothing else found on the net i have only this....and i think this is the more difficult to find

 

duffy

Well-Known Member

• Mar 23, 2012

• #6

Like I said, the house codes aren't helpful. Are you trying to replace a bad component?

 

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billakosgr

New Member

• Mar 23, 2012

• #7

yeah i want to replace these two bad components and i think that i am unlucky

 

duffy

Well-Known Member

• Mar 23, 2012

• #8

How do you know the 3-pin device is bad if you don't know whether it's a diode or a transistor?

 

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billakosgr

New Member

• Mar 23, 2012

• #9

this tell me a electronic here but he did not now what it is or when he will find it because he did not see it before something similar.
I want help from where i can find it...

this answer tell me when i asked him what it is. diode or transistor?

 

Last edited: Mar 23, 2012

G

gie_dream

New Member

• Apr 30, 2012

• #10

diode ?
transistor ?

 

duffy

Well-Known Member

• Apr 30, 2012

• #11

Probably a transistor. But without more, cannot say what. Trace diagram. Remove and do diode checks. First thing is to classify: Bipolar or Mosfet? NPN or PNP?