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View angle -Phototransistor

Discussion in 'General Electronics Discussion' started by Srinivasa Rao Beera, Apr 7, 2017.

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  1. Srinivasa Rao Beera

    Srinivasa Rao Beera

    Apr 7, 2017
    Dear All,

    Attached Photo-transistor datasheet ,can anyone help what will be the viewing angle ?

    Attached Files:

  2. davenn

    davenn Moderator

    Sep 5, 2009
    there is nothing stated about the viewing angle ..... but I's sure you noticed that
  3. davenn

    davenn Moderator

    Sep 5, 2009
    so what is your application and why is the viewing/operating angle important ?
  4. OBW0549


    Jul 5, 2016
    As Davenn said, the phototransistor data sheet does not specify the viewing angle, so there is no way any of us can tell you what it is. Here are three ways you can proceed, if viewing angle is important in your application:
    1. Contact the manufacturer's application engineers and get guidance from them;
    2. Measure the viewing angle yourself; or
    3. Pick a different phototransistor, one whose viewing angle is specified on its data sheet.
    Last edited by a moderator: Apr 8, 2017
    Arouse1973 likes this.
  5. Herschel Peeler

    Herschel Peeler

    Feb 21, 2016
    "Not stated" kind of implies "isn't consistent". Try it and see if it works.
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