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Decipher part of this please: 4.7U_0805_25V6K

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    Decipher part of this please: 4.7U_0805_25V6K

    From a Dell laptop schematic, they list this SMD capacitor: 4.7U_0805_25V6K

    I understand it all except the 6K at the end. What does that mean?

    4.7U is capacitance
    0805 is size of SMD capacitor
    25V is 25 volts.
    6K ???

    Thanks

    #2
    Re: Decipher part of this please: 4.7U_0805_25V6K

    My ideas so far for the meaning of 6K:
    • Withstand voltage (6kV)
    • "Kemet code" (seen in some documents from Kemet)
    • 6 being unknown and K being 10% tolerance
    • Date code accidentally included
    • Reel quantity accidentally included (probably not, most are 5k, 10k etc)

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      #3
      Re: Decipher part of this please: 4.7U_0805_25V6K

      There's no way a 0805 has terminals spaced far enough apart to handle 6KV without arcing. The "K" could be 10% tolerance. Or maybe "6K" could designate the tempco (though the terminology would be something like "X7R" or "Y5V" or "Z5U").
      PeteS in CA

      Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
      ****************************
      To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it.
      ****************************

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        #4
        Re: Decipher part of this please: 4.7U_0805_25V6K

        In case it helps, the motherboard is a Compal LA-7781P - Dell Latitude E6430

        Comment


          #5
          Re: Decipher part of this please: 4.7U_0805_25V6K

          .
          Last edited by R_J; 10-15-2021, 05:10 PM.

          Comment


            #6
            Re: Decipher part of this please: 4.7U_0805_25V6K

            Doing more searches on my question, I was able to finally find something that may make sense on this. A German site had my same question on it and they speculated that the 6K represented the minimum purchase quantity for the item. But I will continue to search on this and post any relevant findings.

            One other thing.... In the schematic for this board, they have many capacitors with this label... 4.7U_0805_25V6K~D I thought the 'K~D' was very interesting to note!

            Comment


              #7
              Re: Decipher part of this please: 4.7U_0805_25V6K

              I've seen some identified as 7U_0805_25V6-K and have also seen the 6 replaced with a 7.

              I'm with PeteS , K is tolerance and the 6 is the tempco.

              It's not ordering quantity.

              Comment


                #8
                Re: Decipher part of this please: 4.7U_0805_25V6K

                A found a few charts listing the codes for temperature coefficient (tempco) for capacitors, but I'm not sure I understood what 6 actually stands for. It seemed that some of the coding standards had different meanings for a 6. Would someone have a link to an article or chart that would describe what 6 means in this situation?

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