Electronic parts identification help?

Discussion in 'General Electronics Chat' started by nidzo, Nov 2, 2013.

  1. nidzo

    Thread Starter New Member

    Nov 2, 2013
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    Hello,
    I could use some help in identifying electronic part on the pic that says something like EDCEN or something like that. I am not sure what this is. To me it looks like a DIOD. The other one is A2719 Ic. I was changing a battery in the shaver but accidentally reversed polarities where this part started to smoke. These pictures are the PCB of shaver/epilator. Any help would be useful.

    Image with both attached to the PCB.
    http://imageshack.us/a/img703/8950/k71t.jpg

    And both zoomed in.
    http://imageshack.us/a/img822/8944/vs5r.jpg


    Thanks in advance.
     
  2. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,500
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    The A2719 comes up in a couple of places, one is a (S)(μ)FA2719 6 pin smt Mosfet for Power management applications.
    Max.
     
  3. nidzo

    Thread Starter New Member

    Nov 2, 2013
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    Well I already stated that is A2719. My question was about the other one that has EDCEN or something similar on it.
     
  4. THE_RB

    AAC Fanatic!

    Feb 11, 2008
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    Looks to me like the A2719 is the motor driver FET, and the diode would be the back-EMF diode across the motor winding (so it can be PWM'ed).

    Neither part would be that critical, just replace the FET with a similar spec part and the diode with a common diode in that package. :)
     
  5. nidzo

    Thread Starter New Member

    Nov 2, 2013
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    Thank you for the answer. I am not sure what you mean by "(so it can be PWM'ed) and "the diode with a common diode in that package."What values (voltage? same as for A2719 or?) and what type of diode this is? Zener? Could you please be more specific. Thanks in advance.
     
  6. #12

    Expert

    Nov 30, 2010
    16,248
    6,745
    I believe he's calling the EDCEN a rectifier diode. Similar to 1N400x series. Just the basic, "enough amp rating" and, "enough voltage rating".
     
  7. THE_RB

    AAC Fanatic!

    Feb 11, 2008
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    Yeah sorry for the late reply but that's right. The diode type should not matter much, and a >100v 1A diode should be very easy to find in that package.

    The running current of those little shaver motors is not very high, maybe 200-300mA average so even a 500mA diode might be ok, although I would try for a 1A diode if possible.

    The 8pin FET is a standard package and you can get the spec figures from a A2719 datasheet. If not, then a >=50v FET in about 6A or 8A rating is common in that 8pin SOIC package.
     
  8. nidzo

    Thread Starter New Member

    Nov 2, 2013
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    Well thank you very much for even late reply :). I have beeing looking for a place online where to buy A2719 without luck. I currently live in Germany but don't speak German language so well. Any ideas where I could order this IC? Thanks for your help once again.
     
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