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  1. #1
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    Reworking a PCB with a 0805 resistor or a MELF resistor?

    Hi
    If a PCB were to be re-worked, involving an 0805 SMD resistor being soldered between two pads, (pads to which the resistor was not intended to be soldered to in the first place, and to which other SMD components are actually soldered to) with the resistor being on its side so as to avoid other components, then would this be a good ploy?....or alternatively, would it be better to use an MMU0102 package resistor, because it presumably has more sturdy terminations?
    MMU0102 is the same length (more or less) as an 0805

    MMU0102 resistor package
    https://www.vishay.com/docs/28713/melfprof.pdf

    picture of 0805 soldered in is attached...doesnt it look precarious?

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  2. #2
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    Re: Reworkign a PCB with a 0805 resistor or a MELF resistor?

    Hi,

    The chip resistor looks like manually added.

    Thus I see no reason why a MMU0102 should be a problem.

    Klaus
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  3. #3
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    Re: Reworkign a PCB with a 0805 resistor or a MELF resistor?

    Thanks, we believe the MMU0102 would be better than the 0805, would you agree?



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    Re: Reworkign a PCB with a 0805 resistor or a MELF resistor?

    Hi,

    Better ... in regards of what?

    --> If itīs better in all regards, then why are there chip resistors?

    Klaus
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  5. #5
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    Re: Reworkign a PCB with a 0805 resistor or a MELF resistor?

    Thanks, the resistor is getting reworked between two circuit nodes where there was not originally intended to be a resistor.
    The 0805 has weaker terminations we believe (?)...and so the rework should instead use a MMU0102 because its got stronger terminations (pads)
    Is this correct do you believe?



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  6. #6
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    Re: Reworkign a PCB with a 0805 resistor or a MELF resistor?

    ! shouldn't matter if you use correct assembly techniques.



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