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Glass SMT Diodes

 
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roni_333



Joined: 15 Jan 2013
Posts: 1

PostPosted: Tue Jan 15, 2013 7:57 am    Post subject: Glass SMT Diodes Reply with quote

Hello All,

I am new here but not in electronics.

Pls., i need information how to identify SMT glass diodes if i need to replace them. I work in electronics maintenance.

See the attached pic.

Thank you in advance,
Roni
http://www.pbase.com/manors/image/148340165
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vtech



Joined: 08 May 2006
Posts: 1264
Location: USA

PostPosted: Tue Jan 15, 2013 11:33 pm    Post subject: Reply with quote

As far as SMD diodes, it is next to impossible to determine the exact part numbers without the documentation. You could try guestimating based on the circuit(Not always possible).

There has never been any set standards with SMD diodes/transistors. While there are codes used for some SMD transistors, there is no generic standards.

If I had to guess based on what I've seen (similar), you'd probably have something like 1N4148(black band's) & something like a MA165 (yellow band).--all small signal type?
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tanju



Joined: 18 Jan 2013
Posts: 1

PostPosted: Mon Jan 21, 2013 3:51 pm    Post subject: Reply with quote

As Vetch said. There is no sure way of knowing what the model of the SMT diode is because there are so many different manufacturers and it’s such a basic component. However, you can try to guess using the schemetic.
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