Opto coupler - B0832/8178

Grossel

Well-Known Member

• Jun 1, 2011

• #1

Hi.

I just disassembled a sheap Nokia cellphone charger.

I found this little opto coupler that is printed on B0832 / 8178.

Is there any chance to get it's specs? I've searched on net for it but cannot find any relevant info.

I can always get it to function by testing, but I want it's specs.

It have four legs,rectangular shaped (about 8x5 mm I guess)


Thanks

 

SABorn

New Member

• Jun 2, 2011

• #2

Sometimes the actual part number is printed on the underside of the chip (SMD). (got me buggered why)

So you might need to remove the chip from the board to find the actual part number.

Then i am hesitant to to say this in case you go to the trouble and find no number on the under side.

Pete.

 

Nigel Goodwin

Super Moderator

Most Helpful Member

• Jun 2, 2011

• #3

I would suggest that more likely it's either an in-house number, or just a cheap Chinese component you can't identify.

 

Grossel

Well-Known Member

• Jun 3, 2011

• #4

It was a cheap one, yes.

I don't think I would go for further dissasembling, as the regulator circuit actually works. But it's plastic housing was very poor. Maybe I can use the regulator to something

 

T

tendi

New Member

• Jul 5, 2011

• #5

that opto coupler could be replaced by the pc817b...
regards.

 

Grossel

Well-Known Member

• Jul 5, 2011

• #6

Thanks tendi