resistance choosing help

Discussion in 'General Electronics Chat' started by bobparihar, Sep 17, 2014.

  1. bobparihar

    Thread Starter Member

    Jul 31, 2014
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    i need 750 k ohm resistance in my circuit..
    but i have not that resistance..
    can i use a 670 k ohm and 100k ohm in series to achieve that.. i know that the theory says resistance get added when connected in series.. does it practically works?
     
  2. #12

    Expert

    Nov 30, 2010
    16,250
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    Yes, it really works. You only have to be careful that one resistor is not getting too hot by using P=IE to find the power in each resistor.
     
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  3. bobparihar

    Thread Starter Member

    Jul 31, 2014
    93
    0
    i need to connect 750k ohm resistance to the two pin(osc 1 and osc 2) of HT12E encoder IC.. would it work..?
     
  4. #12

    Expert

    Nov 30, 2010
    16,250
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    All I get for HT12E is Chinese characters. Can you post a datasheet?
     
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  5. tom_s

    Member

    Jun 27, 2014
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    333
    or parallel 2 x 1.5m ohm
     
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  6. Lundwall_Paul

    Member

    Oct 18, 2011
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    http://octopart.com/ Is an excellent source for data sheets. You will find the data sheet there for HT12E. I just looked at it.
     
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  7. shteii01

    AAC Fanatic!

    Feb 19, 2010
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    Yes.
     
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  8. crutschow

    Expert

    Mar 14, 2008
    12,981
    3,221
    Yes, but it will give you 770k ohm, not 750k. Is that okay? A 670k and an 82K in series would be closer.
     
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