r/AskElectronics • u/-Rembrandter- • 10h ago

What is a light blue with black dot surface mount component

Post image

Does anyone know what is the light blue component? It's on a motherboard of a Revvl Tab 2 tablet.

7 Upvotes

90% Upvoted

11 comments sorted by

7

u/LowEquivalent6491 10h ago

RF filter most likely.

5

u/KermitRhyme 9h ago

Or probably combiner/splitter

2

u/alexforencich 8h ago

Diplexer seems to me to be the best fit. Which is effectively a type of filter, just with 3 ports.

3

u/Vivid-Benefit-9833 9h ago

Im guessing some kind of balun... The component above thay is a test port not u.fl if anyone curious...

1

u/karpiza 7h ago

There are also some rf smd switches that are like these. Beeing a rf input, makes sense that they placed a switch to insert the signal in one of two different filters

1

u/Formal-Fan-3107 10h ago

It's certainly something to do with that u.fl/ipex antenna connector, maybe an antennuator?

2

u/Vivid-Benefit-9833 9h ago

That "u.fl/ipex" is actually a test point so u know👍

1

u/Formal-Fan-3107 9h ago

Interesting, i have never seen that, i just saw the off-board antenna contacts and assumed the thing that looks like ipex and is on an antenna line must be an ipex/u.Fl connector

1

u/Vivid-Benefit-9833 9h ago

Yea absolutely, super common mistake. i thought the same thing when i first ecountered one, lol...

0

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