VK200 r.f choke maximum current

Discussion in 'Wireless & RF Design' started by tzitzikas, May 20, 2010.

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  1. tzitzikas

    Thread Starter Active Member

    Jun 3, 2007
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    i have a linear amplifier which is using VK200 r.f choke (at input voltage). I would like to ask you which is the maximum current? Because when i operate the linear (7A current) the VK200 r.f choke is very very warm. thank you
     
  2. bertus

    Administrator

    Apr 5, 2008
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    Hello,

    The VK200 inductor is rated for 3 A continuous and 5 A peak.
    See the attached PDF.

    Bertus
     
  3. tzitzikas

    Thread Starter Active Member

    Jun 3, 2007
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    hi. i am thinking to replace the vk200 choke with some turns of wire, on ferrite bead.
    i have some pieces of this ferrite bead: FB-43-7351 from amidon (43 material)
    look here: https://www.amidoncorp.com/items/44
    how many turns i must use to have the same inductance with the vk200. i don't know how to calculate the number of turns, and also i don't know the vk200's inductance.
    (the circuit is an mw band (600-1800khz) linear amplifier),
    and the maximum current is 15A.
     
  4. bertus

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  5. tzitzikas

    Thread Starter Active Member

    Jun 3, 2007
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    If i use 4 vk200 (in parallel ) i will use the same inductance or 1/4 inductance, It will work?
     
  6. bertus

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    Apr 5, 2008
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