| Electronics > Repair |
| SMD Component Identification Help |
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| 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. |
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