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Discussion in 'Troubleshooting and Repair' started by h_sb97, Sep 9, 2018.

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  1. Sep 9, 2018 #1
    h_sb97

    h_sb97

    4
    0
    Sep 9, 2018
    hi guys
    i am designing a avr usb programmer and i see a component that i have never seen...
    Abbreviation of this component is SL_1 and it conected to port usb

    can u help me?
     

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  2. Sep 9, 2018 #2
    Rixen

    Rixen

    98
    24
    Feb 16, 2016
    It's a fuse rated for 250mA..
     
    HellasTechn, davenn and h_sb97 like this.
  3. Sep 9, 2018 #3
    davenn

    davenn Moderator

    13,991
    2,018
    Sep 5, 2009

    yup
    what he said :)
     
    HellasTechn likes this.
  4. Sep 9, 2018 #4
    Bluejets

    Bluejets

    5,616
    1,188
    Oct 5, 2014
    Question has to be why bother?
    One can get a USB avr programmer with leads etc. on Ebay for around $3.00.
     
    h_sb97 likes this.
  5. Sep 9, 2018 #5
    Lene Larsen

    Lene Larsen

    28
    4
    Feb 1, 2018
    Maybe a kind of assurance, close if more than 250 mA
     
    h_sb97 likes this.
  6. Sep 10, 2018 #6
    Harald Kapp

    Harald Kapp Moderator Moderator

    12,456
    2,985
    Nov 17, 2011
    That's not "SL_1", it's "SI_1". The designer of the circuit may be from a German speaking country where "SI" is short for "Sicherung" meaning "fuse".
     
    h_sb97, davenn and Lene Larsen like this.
  7. Sep 11, 2018 #7
    h_sb97

    h_sb97

    4
    0
    Sep 9, 2018
    i'm study altium designer and this is my final project ;)
     
  8. Sep 11, 2018 #8
    h_sb97

    h_sb97

    4
    0
    Sep 9, 2018
    maybe :) . it was an interesting point
     
  9. Sep 11, 2018 #9
    h_sb97

    h_sb97

    4
    0
    Sep 9, 2018
    tnx <3
     
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