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Thread: SMD component identification !

  1. #1
    aljamri Okay
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    Default SMD component identification !

    Hi again,

    Attached is a photo for a similar component to a blown one in a faulty card I'm trying to repair. As an prehistoric technician, I'm not much familiar with SMD so, I do not know what are these two components.

    I do contact EBCOS company and amazingly, the swift reply me, the yellow one is " tant chip capacitor" when I asked about its value and the identity of the black component, they gently excused that they can not help me.

    Any body can help for the value of the yellow capacitor and the identity of the black one.

    Thanks
    Attached Images
    Its what your friend in Your mind, what you in your friends mind


  2. #2
    colin55 Bad colin55 Bad
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    107 = 100u 10v

    22 35 = 22u 35v

  3. #3
    aljamri Okay
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    Thanks for your help, for the black one, similar idea came to my minde, but the 2N diverted the whole things.

    Is there any problem -except for the space- to replace them with the ordinary snap capacitors.

    Thanks again.
    Its what your friend in Your mind, what you in your friends mind

  4. #4
    justDIY Good justDIY Good
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    colin nailed the values, both are tant caps, and the line indicates positive, unlike the line on a diode or aluminum electrolytic cap which indicates negative!

    without seeing more of the board, can't tell you what an appropriate replacement, other than the exact same thing, would be. sometimes tant are used because of low esr, high frequency, etc. sometimes they're just used because they offer high capacitance in a small size.
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  5. #5
    Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent Pommie Excellent
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    Quote Originally Posted by justDIY View Post
    colin nailed the values, both are tant caps, and the line indicates positive, unlike the line on a diode or aluminum electrolytic cap which indicates negative!
    Isn't it weird though that the negative end connects to the positive rail in a bridge rectifier.


    Just kidding.

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  6. #6
    noptical Newbie
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    Quote Originally Posted by aljamri View Post
    Hi again,

    Attached is a photo for a similar component to a blown one in a faulty card I'm trying to repair. As an prehistoric technician, I'm not much familiar with SMD so, I do not know what are these two components.

    I do contact EBCOS company and amazingly, the swift reply me, the yellow one is " tant chip capacitor" when I asked about its value and the identity of the black component, they gently excused that they can not help me.

    Any body can help for the value of the yellow capacitor and the identity of the black one.

    Thanks
    Hi
    You can find tantalum caps in 10packs on ebay and they're very cheap.

  7. #7
    colin55 Bad colin55 Bad
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    the line on a diode indicates negative
    The line on a diode indicate cathode (k) (kathode) NOT NEGATIVE - the cathode end of the diode may be connected to the negative rail or the postive rail of a circuit (or anywhere in-between), but the black or silver or red stripe or indent or dot or chamfer or symbol on a diode ONLY INDICATES THE CATHODE. Nothing else.

  8. #8
    Sceadwian Excellent Sceadwian Excellent Sceadwian Excellent Sceadwian Excellent Sceadwian Excellent Sceadwian Excellent Sceadwian Excellent
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    However in order for a diode to pass current the cathode has to be negative in relation to the anode. Thinking the diode cathode itself actually represents a negative voltage is a bad habit to get into like I think Colin was trying to say.
    "Because I be what I be. I would tell you what you want to know if I
    could, mum, but I be a cat, and no cat anywhere ever gave anyone a
    straight answer, har har."

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