Please I need help to identify a 5 pin SMD Semiconductor "KV5MK"

Discussion in 'Microcontrollers and Programming' started by DJKH, Dec 25, 2016.

  1. DJKH

    DJKH

    Joined:
    Dec 25, 2016
    Messages:
    3
    Likes Received:
    0
    Hi, please help me identify an SMD semiconductor that I found burnt in a sircuit board I am trying to repair, it has 5 pins and it is labeled "KV5MK" I need some equivalent replacement SMD to replace it.
    Thank you for your help.
     
    DJKH, Dec 25, 2016
    #1
    1. Advertisements

  2. DJKH

    ramussons

    Joined:
    Jun 10, 2014
    Messages:
    289
    Likes Received:
    57
    If you tell us what circuit board you are trying to repair, maybe a few photos of the component,...., it would help us to help you :D
     
    ramussons, Dec 27, 2016
    #2
    1. Advertisements

  3. DJKH

    DJKH

    Joined:
    Dec 25, 2016
    Messages:
    3
    Likes Received:
    0
    Thank you for your reply, the circuit board is for a LooL IPTV receiver, the user lost its original power adapter plug (output 5V) so he tried a different plug with output 12V that is when that component get burnt. Please check the pictures (On red is the damaged part, on green is the same component in a different spot on the board):
    upload_2016-12-27_12-7-26.png

    upload_2016-12-27_12-9-56.png

    upload_2016-12-27_12-5-48.png

    Thank you again for your help.
     
    DJKH, Dec 27, 2016
    #3
  4. DJKH

    davenn Moderator

    Joined:
    Sep 5, 2009
    Messages:
    12,154
    Likes Received:
    1,422
    Location:
    Sydney, Australia
    putting 12V into something that requires only 5V is a bad thing .... there is most likely more than that one
    component that is damaged .... a component can be zapped without any visible external damage

    seeing where they are on the board and the surrounding components, they most likely are switching regulators
    I cant seem to find any references for it online


    Dave
     
    davenn, Dec 27, 2016
    #4
  5. DJKH

    DJKH

    Joined:
    Dec 25, 2016
    Messages:
    3
    Likes Received:
    0
    Thanks Dave, so it is going to be hard to fix this board :( ...
     
    DJKH, Jan 1, 2017
    #5
  6. DJKH

    davenn Moderator

    Joined:
    Sep 5, 2009
    Messages:
    12,154
    Likes Received:
    1,422
    Location:
    Sydney, Australia
    most likely, yes
     
    davenn, Jan 2, 2017
    #6
    1. Advertisements

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Similar Threads
  1. Reven Moodley

    Can I Connect a DC-DC step up converter to a USB powerbank?

    Reven Moodley, Aug 25, 2016, in forum: Electronic Projects
    Replies:
    7
    Views:
    797
    KJ6EAD
    Aug 27, 2016
  2. wade7575
    Replies:
    10
    Views:
    1,308
    (*steve*)
    May 26, 2017
  3. Name...
    Replies:
    32
    Views:
    1,514
    Audioguru
    May 25, 2017
  4. jagrav
    Replies:
    19
    Views:
    582
  5. jishak
    Replies:
    4
    Views:
    475
    Harald Kapp
    Nov 1, 2016
  6. woodylepic
    Replies:
    9
    Views:
    296
    woodylepic
    Nov 4, 2016
  7. Nwanno Promise
    Replies:
    2
    Views:
    191
    (*steve*)
    Nov 23, 2016
  8. April
    Replies:
    9
    Views:
    446
    Externet
    Aug 11, 2017
Loading...