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Identify this part

Discussion in 'Troubleshooting and Repair' started by jason1225, Apr 18, 2014.

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  1. jason1225

    jason1225

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    0
    Apr 18, 2014
    Can someone identify this part? The print on the part says 104 M and 8549 and it also says E5 underneath that. Thanks in advance image.jpg
     
  2. davenn

    davenn Moderator

    13,648
    1,884
    Sep 5, 2009
    They are chip capacitors inside glass encapsulation

    This was common in the transition time between full wired components and SMD (chip components

    Dave
     
    Last edited: Apr 18, 2014
    jason1225 likes this.
  3. KrisBlueNZ

    KrisBlueNZ Sadly passed away in 2015

    8,393
    1,270
    Nov 28, 2011
    Right, as Dave says, they're multi-layer ceramic capacitors (MLCC) in glass encapsulation. The value code 104M means 100 nF (aka 0.1 µF), ±20%. The 8549 could be a date code I suppose. E5 probably indicates the dielectric and/or the working voltage, but I can't find what those letters mean. It's probably reasonable to assume X7R dielectric and 50V working voltage.

    If you put your location in your profile we can suggest a supplier in your country.

    These should be suitable replacements:
    http://www.radioshack.com/product/index.jsp?productId=12401429
    http://www.digikey.com/product-detail/en/C420C104K5R5TA7200/399-4491-1-ND/818348
    http://www.digikey.com/product-detail/en/C430C104K1R5TA7200/399-4503-1-ND/818360
    http://jaycar.com.au/productView.asp?ID=RC5490&form=CAT2&SUBCATID=967#1
    http://jaycar.com.au/productView.asp?ID=RC5496&form=CAT2&SUBCATID=967#1 (pack of 100)
    http://uk.farnell.com/vishay-bc-com...aa/capacitor-ceramic-0-1uf-50v-x7r/dp/1846726
    http://uk.farnell.com/kemet/c412c104k5r5ta/cap-mlcc-x7r-100nf-50v-axial/dp/1457721

    Or if you want a better quality alternative, you can use a film capacitor:

    http://www.digikey.com/product-detail/en/R82EC3100AA70J/399-5861-ND/2571296
     
    jason1225 likes this.
  4. davenn

    davenn Moderator

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    Sep 5, 2009
    did you think they were faulty ?
    what made you think so?

    or were you just curious about what they were ?


    Dave
     
  5. jason1225

    jason1225

    2
    0
    Apr 18, 2014
    Yes it was faulty, the transistor beside it went out and took it out. Thank you for your responses! It was very helpful
     
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