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Author Topic: Strange SMD component  (Read 229 times)

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Offline sokot13Topic starter

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  • Posts: 2
  • Country: gb
Strange SMD component
« on: August 03, 2024, 10:27:10 pm »
Hello !

I encountered this strange component on a PCB. Its package is cylindrical and it has four terminal forming a "cross". Its label is prefixed by "U" and two of its terminals are grounded. The only marking is a "3".

Do you have any idea what it can be?

Thanks!
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Offline Kurets

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  • Posts: 11
  • Country: se
Re: Strange SMD component
« Reply #1 on: August 03, 2024, 10:33:27 pm »
U indicates an IC. The footprint and pinout is typical of RF transistors or amplifiers. So very likely it is an IC RF amplifier of some sort, LNA or PA (low power)
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Offline sokot13Topic starter

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  • Posts: 2
  • Country: gb
Re: Strange SMD component
« Reply #2 on: August 03, 2024, 11:00:18 pm »
Thanks for the tip! This is probably a Mini-Circuits ERA-3SM.
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Offline fzabkar

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  • Posts: 2512
  • Country: au
Re: Strange SMD component
« Reply #3 on: August 03, 2024, 11:22:01 pm »
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