Electronics > Repair

SMD Component Identification Help

(1/2) > >>

Testtech:
Greetings,

I am working on an RF circuit and have encountered SMD components that I do not recognize. Please see the picture. I have outlined the four parts in question.
They have white translucent bodies, no marking other than the partial black band.
Resistance measured across these varies, and I suspect that the reading are from other circuit DC paths. I suspect capacitors.

Does anyone know for certain?

Thank you!

fzabkar:
The unmarked ones look like chip inductors. If so, then they should measure close to zero ohms.

Testtech:
I don't think they are inductors, as some measure in the 1000's of ohms, and other do not.

fzabkar:
Precision resistors?

Testtech:
fzabkar,

You are correct, these are inductors!
 I am in the process of working out exactly what is going on. Some of these components have clearly failed open circuit. Unfortunately, there are no value markings, so I am not sure how to estimate the correct values.
Some are in the signal path, (3-4 GHz), others seem to be bias filters for the transistor gain stages.

Navigation

[0] Message Index

[#] Next page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod