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simple component indentification

Discussion in 'Datasheets, Manuals and Component Identification' started by Pharaday, May 15, 2020.

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  1. Pharaday

    Pharaday

    101
    3
    Jan 18, 2016
    WIN_20200515_12_58_05_Pro.jpg Hey I cant find the dataheet for these 2 black rectangular part with the coils drawn on them. What are these?
     
  2. bertus

    bertus Moderator

    541
    179
    Nov 8, 2019
    Hello,

    The datasheets can only be found at jotrin.
    https://www.jotrin.com/product/parts/HN1628CG
    https://www.jotrin.com/product/parts/HN2018CG
    (you must create an account to see the datasheet).
    How many pins do the parts have?
    It could be there are several transformers in the part to isolate circuits.

    I can find other parts from mingtek here:
    https://datasheetspdf.com/datasheet/search.php?sWord=mingtek

    As far as I understand the partnumber,
    the 1628 would be an 10/100 Base-T Single Port Transformer and
    the 2018 would be an 10/100 Base-T Dual Port Transformer

    Bertus
     
    davenn likes this.
  3. bertus

    bertus Moderator

    541
    179
    Nov 8, 2019
    Hello,

    I do not think that the part would be defective.
    There are only some transformers inside:

    HN16018CG_internals.png

    This is the internal schematic of the SMD version.

    Bertus
     

    Attached Files:

  4. Pharaday

    Pharaday

    101
    3
    Jan 18, 2016
    You know, I haven't removed them yet, they're SMD and I hate that crap with my caveman melty stick, I'm liable to incinerate it. But actually who cares I'll give it a shot. My SMD LED mortality rate is like 50% heh
     
  5. Pharaday

    Pharaday

    101
    3
    Jan 18, 2016
    but man hang on transformers?! little tiny transformer? I'll get you pin count but what (ballpark) kinda voltage are we talking for these? That's.... neat...... little transformers?!
     
  6. bertus

    bertus Moderator

    541
    179
    Nov 8, 2019
    Harald Kapp likes this.
  7. Harald Kapp

    Harald Kapp Moderator Moderator

    9,886
    2,096
    Nov 17, 2011
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