Resistor placement in a circuit. Are these examples OK?

Discussion in 'The Projects Forum' started by cpqfe29, Jan 17, 2011.

  1. cpqfe29

    Thread Starter New Member

    Jan 30, 2010
    26
    1
    I have a circuit that I am trying to build again but in a surface mount configuration. I have a section or two that I need to jump to get this to work the way it is laid out. I saw the way resistors were laid out on this pre-biased transistor and it made me think.

    http://www.onsemi.com/pub_link/Collateral/DTC114EET1-D.PDF

    Part of the circuit is shown in the diagram below as Figure A. This is correct and working the way it is.

    {Look at R3 - these are the only changes between figure A,B,C and D}

    I would like to know if the figures B, C and D are acceptable also? It was not until I saw the data sheet above that raised these questions. This would solve a minor problem if and only if this is a correct way to accomplish what is in Figure A. I will try this again with the pre-biased transistors but this question is two basic in nature to ignore and not learn from.

    [​IMG]



    Thanks for and wisdom and feedback!

     
    Last edited: Jan 17, 2011
  2. R!f@@

    AAC Fanatic!

    Apr 2, 2009
    8,754
    760
    They are the same thing....unless very high frequencies are involved.
    For switching below GHz. No problem
     
    cpqfe29 likes this.
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