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What component is this?

Discussion in 'Datasheets, Manuals and Component Identification' started by KeithM, Nov 7, 2015.

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  1. KeithM

    KeithM

    41
    4
    Nov 3, 2015
    I'm putting together this schematic, from this project, to use in Eagle for a project of mine:
    [​IMG]
    I've almost finished putting it together, except for the parts that say "4k7" and "1k5". I'm assuming that since a rectangle is used to represent a resistor in other parts, that those are resistors, but what is "4k7" suppose to mean? 4.7 Ohms?

    Thanks for any help!
     
  2. davenn

    davenn Moderator

    13,991
    2,018
    Sep 5, 2009
    4k7 = 4000, 700 Ω ie. 4700 Ω
    k = 1000
    its a shorthand way of writing 4.7 kΩ

    if it was 4.7 Ohms this it would read 4E7 or 4R7 depending on the manufacturer

    Dave
     
  3. KeithM

    KeithM

    41
    4
    Nov 3, 2015
    Thanks! I'm just starting to learn electronics, so I really appreciate the help :)
     
    davenn likes this.
  4. shrtrnd

    shrtrnd

    3,826
    527
    Jan 15, 2010
    Trivia.
    The component number-value system davenn explained is the result of some international convention agreement that was reached between nations years ago.
    However, you will find a lot of older numbering systems that were used before the international agreement, in those older schematics.
    Just wanted you aware when you see the difference in the old schematics and the new one you posted.
    When you have questions about what you don't know, people will help you here. But you can learn a lot by going to the 'Resources' section on this web-site too.
     
    Martaine2005 and KeithM like this.
  5. Christopher Haynes

    Christopher Haynes

    2
    0
    Dec 10, 2015
    4.700 ohms or 4.7k ohms .
     
  6. Minder

    Minder

    3,215
    700
    Apr 24, 2015
    You also may come across the same with R, e.g. 4R7 = 4.7 ohms, 47R = 47 ohms.
    M.
     
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