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Ask an Expert Forum Most suitable device for ESD protection of vulnerable broadband (VLF->2Ghz) RF front end (eg ext antenna)?
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  • transient
  • high speed
  • rotection rf
  • esd
  • microwave
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Most suitable device for ESD protection of vulnerable broadband (VLF->2Ghz) RF front end (eg ext antenna)?

Former Member
Former Member over 9 years ago

Hi,

Normally when looking for answers, with enough effort put in I've found them eventually and forums have just been lurked..

However I'd appreciate some advice as per the topic title on this.. I'm stumped image

 

Briefly, for a few applications on the go I need to develop in some ESD tolerance for externally exposed signal inerfaces, (RF mainly and some high-speed digital data) into ESD-sensitive silicon.

Interfaces are passing mostly RF low-level receive  (antenna) with some cases transmitting  at 100-200mw@50-75 ohm..  losses  need to be kept low, and DC tolerance of 6v max would be good.

So I think I'd be looking at a bidirectional single-port (two pin) very low capacitance TVS.. and ideally more around 1206 footprint than some of the forms you see these days  image

Also being low volume, something somewhat commonly used would avoid the issues you get with the more obscure components (reels of thousands, lead times, so on..)

 

I guess it's down to

*ratings

*low-cap to suit the bandwidth

*leakage/loss

*availability

*footprint

*cost (low-volume)

 

:but I'm not getting anywhere with trying to work out something suitable and if someone could help out I'd appreciate it image

Cheers Ben

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  • clem57
    0 clem57 over 9 years ago

    Are you looking for ESD diodes to protect the signal path? See How to select effective ESD protection diodes | EE Times

    Clem

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