e-bike flasher unit repair

Discussion in 'General Electronics Chat' started by Mad Professor, Feb 19, 2012.

  1. Mad Professor

    Thread Starter Active Member

    Apr 15, 2009
    133
    1
    Good day all.

    I am trying to repair a 36v E-Bike Flasher Unit.

    I have done a quick Schematic in DipTrace, I think it's right.

    [​IMG]

    The burnt part looks to be a TO-126, and made by NEC, but it's hard to read what is left of the part numbers, but it looks something like K701, K791, K301, K391.

    Can anyone advice.

    Thanks for your time.

    Best Regards.
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,346
    Hello,

    It could be an 2SK701, A N-channel Mosfet (see attached datasheet).
    (often the 2S preface is not printen on the parts).

    Bertus
     
  3. Mad Professor

    Thread Starter Active Member

    Apr 15, 2009
    133
    1
    Thanks for that.

    I have looked on both Farnell & RS Components.

    What would you say would be a good drop in replacement for the 2SK701 ?

    Thanks again.
     
  4. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,346
    Hello,

    I think the IRL540 will do the job easy, as the 2SK701 is a logic level gate mosfet.
    Take a look at the datasheet : irl540n.pdf and compare it with the 2SK701.

    Bertus
     
  5. Mad Professor

    Thread Starter Active Member

    Apr 15, 2009
    133
    1
    It is now working again.

    Thanks again.
     
Loading...