What are these components

Discussion in 'General Electronics Chat' started by rustypigeon, Jun 4, 2013.

  1. rustypigeon

    Thread Starter New Member

    Jul 25, 2010
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    I googled the number on them but I can't seem to find any datasheets on them.

    [​IMG]
     
  2. Shagas

    Active Member

    May 13, 2013
    802
    74
    They look like resistor nets or whatever they are called . Basically many resistors in a small package probably used for led's or similar stuff .
    Use your multimeter to confirm
     
  3. Georacer

    Moderator

    Nov 25, 2009
    5,142
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    I second that. Resistor network.
     
  4. absf

    Senior Member

    Dec 29, 2010
    1,493
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    These resistor network can have a few type of wiring. You can refer to the datasheet of the bourns on page 2.

    Allen
     
  5. MrChips

    Moderator

    Oct 2, 2009
    12,452
    3,371
    I cannot read the markings on the black and red ones.
    The tan colored ones are Bourns resistor networks.

    My guess, as far as I can see:

    10x-1-102
    12x-2-103

    The first numbers give the number of pins.

    10x = 10 pins
    12x = 12 pins

    The second number gives the resistor configuration.

    e.g.
    10x-1 = nine resistors connected to a common pin-1
    12x-2 = six individual resistors

    The last number is the resistance value:
    102 = 1kΩ
    103 = 10kΩ

    http://www.bourns.com/data/global/pdfs/4600x.pdf
     
    #12 and screen1988 like this.
  6. rustypigeon

    Thread Starter New Member

    Jul 25, 2010
    21
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    Thanks guys!
     
  7. PDKarber

    New Member

    Aug 17, 2008
    1
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    I know this is an old post but wanted to say thanks for the info. We have a old part for the C17 Simulator program and this allowed us to ref the correct resistor. I knew I joined this group for more than supporting my robot habit...
     
  8. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
    4,771
    971
    SIP resistor is the "most correct" term for the components shown above..
    A simple resistance measurement can verify the values when a marking is not sufficient.
     
  9. THE_RB

    AAC Fanatic!

    Feb 11, 2008
    5,435
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    I buy these all the time. You are correct with the markings, apart from one small technicality;

    The -1 or -2 mark in the middle of the number is "how many external pins per resistor".

    So a 8x-2-103 is 8 pin, 2 pins per resistor (ie 4 resistors), and 103 is 10k (10 with 3 zeros).

    An 8x-1-103 has 8pins and 7 resistors.

    And a little known fact; in a pinch you can snap them to length, to give the amount of resistors and pins you need. You need two pairs of pliers to snap in the right place, and a spot of nail varnish to seal the end. Internally they are just a ceramic strip with resistors placed along it.
     
  10. WBahn

    Moderator

    Mar 31, 2012
    17,788
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    I did that to some a number of years ago and discovered that the end resistor or two changed noticeably from the stress. I found that using a pair of dikes reduced the problem significantly.
     
  11. THE_RB

    AAC Fanatic!

    Feb 11, 2008
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    Dikes? Is that a US term?

    I use two pairs of good quality needle nose or pointy nose pliers, and don't make a habit of snapping them but it can be done in a time of need with no problem. Like in case of needing a fast repair or for easy prototyping, without time delays to order parts.
     
  12. Metalmann

    Active Member

    Dec 8, 2012
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    Some people call sidecutters, dykes/dikes.
     
  13. THE_RB

    AAC Fanatic!

    Feb 11, 2008
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    Ahh! Thanks for the clarification. :)
     
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