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Understanding SMD Electrolytic Capacitor Coding

By on July 15, 2010

ecap

If you are repairing Mainboard I’m sure you would have came across SMD electrolytic capacitor that have marking on top of the cap. Some value are quite direct like 47 and 16 means 47 microfarad  with 16 volt working voltage. However some SMD e-caps that have alphabet letter and you need to find out what is the meaning of those alphabet letter. Please click on  the photo to visit the website and scroll down to check on the answer.

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80 Comments

  1. Roberto S.

    July 15, 2010 at 1:31 pm

    Thank you for this link. I watched there are a lot of various articles about electronics in this Website.

    Likes(1)Dislikes(1)
    • Samuel

      July 13, 2014 at 11:12 am

      How about the following capacitor on laptop motherboard:

      100
      EFK.
      Q62

      Please help

      Likes(5)Dislikes(2)
      • Jestine Yong

        July 14, 2014 at 10:58 am

        HI Samuel,

        It is 100uf but not sure on the voltage. Since laptop uses low dc voltage a 25 volt would be safe.

        Jestine

        Likes(2)Dislikes(3)
  2. admin

    July 15, 2010 at 10:27 pm

    HI Robert,

    Yes there are some good articles too.

    Jestine

    Likes(0)Dislikes(0)
  3. Kyongheon Yang

    August 14, 2010 at 1:06 am

    Thank you.

    Likes(0)Dislikes(0)
  4. Andy

    September 16, 2011 at 11:46 am

    Great post admin, thanks for sharing. Look forward to reading more in future.

    Andy

    Likes(1)Dislikes(0)
  5. FRANKLIN

    October 17, 2011 at 1:02 pm

    I've got a SMD Electrolytic Capacitor that says on the top:
    2N
    470
    16A

    I am not sure what really they mean. Any ideas???

    Thanks!

    Likes(2)Dislikes(0)
  6. admin

    October 18, 2011 at 12:25 pm

    HI Franklin,

    Try check with digital capacitance meter to see if the value is 470uf.The working voltage is 16 VOLT.

    Jestine

    Likes(0)Dislikes(0)
  7. adam

    November 14, 2011 at 6:30 am

    hi i have a aluminum capacitor
    with markings
    H1
    330A
    UD

    any ideas
    Thanks

    Likes(1)Dislikes(0)
  8. admin

    November 14, 2011 at 12:46 pm

    HI Adam,

    It should be 330UF 10 VOLT CAP. Please refer to this link:

    http://www.marsport.org.uk/smd/cap.htm

    Jestine

    Likes(1)Dislikes(0)
  9. Ryan B

    December 16, 2011 at 6:11 am

    I got one that has me stumped big time.

    98 (Looks more like a 0 with a - though it)
    100
    ELA (LA are still Upper case but are smaller than the E)

    Likes(0)Dislikes(0)
  10. vishal arora

    March 8, 2012 at 5:52 am

    hi i am from india and i want to know all code of capacitors

    like 2a meand 100v 2g means 400v please i want help any webist or anything

    Likes(0)Dislikes(0)
    • Jestine Yong

      March 8, 2012 at 10:25 am

      Hi Vishal,

      Sorry i do not have such code.

      Jestine

      Likes(0)Dislikes(0)
  11. Corey Hastings

    March 26, 2012 at 2:23 pm

    Hey!

    I have an aluminum surface mount capacitor marked:

    x4507
    100
    25T

    I am assuming that means 100UF and 25V, but I have no clue what the first part means. I also have some where the top section is "33080", "41514", and "V1214". Any help on what these mean would be greatly appreciated.

    Thanks!

    Likes(0)Dislikes(0)
    • Jestine Yong

      March 28, 2012 at 1:31 am

      Hi corey,

      Yes the value of 100uf 25 volt is right but I have no info on those front code. I have searched the net but could not find any answer. It could be codes that can be understood by the manufacturers.

      Jestine

      Likes(0)Dislikes(0)
  12. Hasan

    September 8, 2012 at 10:39 am

    i have a capacitor numbering
    671
    100
    25z
    what is the meaning....

    Likes(0)Dislikes(0)
    • Jestine Yong

      September 9, 2012 at 4:03 am

      Hi Hasan,

      Most probably 100uf with 25 volt. You can use your digital capacitor tester to confirm the value.

      Jestine

      Likes(0)Dislikes(0)
  13. Hasan

    September 9, 2012 at 10:50 am

    Thanks Jestine
    the another one is e-cap numbering
    645
    SVP
    1200
    4
    this is the complicated one.......
    please help

    Likes(0)Dislikes(0)
    • Jestine Yong

      September 10, 2012 at 8:23 pm

      Hi Hasan,

      If the e-cap is very small then it could be a 1200uf with 4 volt working voltage. I suggest that you confirm the uf by checking it with a digital capacitor tester.

      Jestine

      Likes(0)Dislikes(0)
  14. Denny Miller

    October 10, 2012 at 12:10 pm

    86
    100
    16A
    What is this ? Thanks !

    Likes(0)Dislikes(0)
    • Jestine Yong

      October 10, 2012 at 8:37 pm

      Hi Denny,

      Most probably a 100uf 16 volt cap

      Jestine

      Likes(0)Dislikes(1)
  15. Denny Miller

    October 10, 2012 at 8:45 pm

    Thank You very much. Does the 86 have significance ?
     

    Likes(0)Dislikes(0)
    • Jestine Yong

      October 10, 2012 at 8:49 pm

      Hi Denny,

      Sometime those code could only be understood by the manufacturer. In order to confirm that the cap is indeed 100UF you can use a digital capacitance to test it.

      Jestine

      Likes(0)Dislikes(0)
  16. Rob

    November 21, 2012 at 6:36 am

    Hi,
    I am trying to replace a capicitor, but struggleing,
    9L   100   EZA
     
    Appreciate the help,  Rob

    Likes(0)Dislikes(0)
    • Jestine Yong

      November 22, 2012 at 6:26 am

      HI Rob,

      Try 100uf 50 volt.

      Jestine

      Likes(0)Dislikes(1)
  17. Zoli

    January 19, 2013 at 4:41 am

    Hi,
    I have one with the following marks:
    7b
    1000
    EZA
    Could you give me some explanation?
    THX.

    Likes(0)Dislikes(0)
    • Jestine Yong

      January 19, 2013 at 9:09 pm

      HI Zoli,

      There are too many coding in SMD caps. This is a 1000uf but not sure on the voltage. If the board use only 5 volt you can always put in a 10 volt cap.

      Jestine

      Likes(0)Dislikes(0)
  18. Jim

    January 24, 2013 at 4:53 pm

    i am looking for this value of capacitor
    9b    470    ELA
    i can understand 470uf , but not sure the voltage , it is in laptop motherboard
    thank

    Likes(0)Dislikes(0)
    • Jestine Yong

      January 25, 2013 at 10:21 am

      Hi Jim,

      If in a laptop you can use 16 to 20 volt e-cap with 470uf. Sometimes it is hard to find the meaning of those coding.

      Jestine

      Likes(0)Dislikes(0)
  19. guy

    June 23, 2013 at 10:38 am

    i have this
    9CY
    220
    25V

    is this 220uF 25 volts?

    Likes(0)Dislikes(0)
    • Jestine Yong

      June 23, 2013 at 3:47 pm

      HI Guy,

      Yes,

      Jestine

      Likes(0)Dislikes(0)
  20. guy

    June 23, 2013 at 4:51 pm

    http://imageshack.us/photo/my-images/827/8ezc.jpg

    can i changed it with this

    http://www.surplus-electronics-sales.com/images/products/120-1114%20220uF%2025V%20Radial%20Electro%20Cap%20sm.jpg

    Likes(0)Dislikes(0)
    • Jestine Yong

      June 24, 2013 at 9:53 am

      Hi Guy,

      Yes you can but in some circuit the SMD cap will last longer.

      Jestine

      Likes(0)Dislikes(0)
  21. Haja Jean Claude

    March 15, 2014 at 11:53 pm

    hello
    I have a supposed bad laptop motherboard capacitor on the top of which is written:
    100
    EFK
    7G4
    Would you like to help me the meaning,please.
    Many thanks

    Likes(0)Dislikes(0)
    • Jestine Yong

      March 17, 2014 at 9:40 am

      Hi Haja,

      100 means 100uf and the code you have to refer to the respective website for answer. From experience dc voltage in laptop is not high so a smd 100uf with 35 volt could do the job well.

      Jestine

      Likes(0)Dislikes(0)
  22. Keven

    May 16, 2014 at 10:10 pm

    Hello
    I have a bad motherboard cap and can't figure out the reading any help appreciated
    98
    68
    25k
    And
    I think a 9z 100 16v is definitly a 100uf 16v cap and the first digits 9z are the manufacturers lot or item code.
    Thank you

    Likes(0)Dislikes(0)
    • Jestine Yong

      May 17, 2014 at 5:51 pm

      HI Keven,

      The first one is 68uf 25 volt and the second one is 100uf 16 v.

      Jestine

      Likes(0)Dislikes(0)
      • Keven

        May 17, 2014 at 6:49 pm

        Thanks Jestine

        Once again your help and willingness to help others has paid you in great reward because you have gained a friend in me.

        I will always be greatfull

        Likes(0)Dislikes(0)
  23. stephen

    August 14, 2014 at 8:05 pm

    I've got a smd capacitor marked

    3U
    470
    ELA

    Any ideas thanks

    Likes(0)Dislikes(0)
    • Jestine Yong

      August 16, 2014 at 4:37 pm

      Hi Stephen,

      It is 470 uF. As for the volt you can use 25 or 35 volt if the circuit board is using max of 20 volt.

      Jestine

      Likes(0)Dislikes(2)
      • Japheth

        April 23, 2015 at 10:37 pm

        pls admin, can i use another type of capacitor to replace this exact 470 ELA capacitor? thanks alot

        Likes(0)Dislikes(0)
        • Jestine Yong

          April 24, 2015 at 4:07 pm

          Hi Japheth,

          Yes you can try that. Make sure it is the electrolytic type with same or higher working voltage

          Jestine

          Likes(0)Dislikes(0)
  24. Miro

    August 14, 2014 at 9:59 pm

    Hi

    Any help appreciated:

    220
    CHA.
    2L6

    Thank you

    Likes(0)Dislikes(0)
    • Jestine Yong

      August 16, 2014 at 4:37 pm

      Hi Miro,

      It is 220UF. As for the volt you can use 25 or 35 volt if the circuit board is using max of 20 volt.

      Jestine

      Likes(0)Dislikes(0)
  25. Daniel

    September 5, 2014 at 7:39 am

    Hi,
    Any help apprecied:
    2M
    470
    ELA
    Thank you

    Likes(0)Dislikes(0)
    • Jestine Yong

      September 10, 2014 at 11:31 am

      It is 470uf. Not sure about the voltage and if the board is using only 5 volt then you can use a 10v or 16 volt cap.

      Jestine

      Likes(0)Dislikes(0)
  26. Alberto

    September 10, 2014 at 4:54 am

    Hi,I've got an aluminum small capacitor
    1
    50v
    VT

    Any help appreciated,thank you.

    Likes(0)Dislikes(0)
    • Jestine Yong

      September 10, 2014 at 11:29 am

      Most probably 1uf 50 volt.

      Jestine

      Likes(0)Dislikes(0)
  27. muthazhagan

    November 29, 2014 at 6:51 pm

    i have find SMD electrolytic capacitor problem in dynisco ATC 770 pressure controller. but not identify the capacitor range.
    1) 100 VFC 1F6 or 100 VFC 3FN
    2) 47 VFC 1K5 or 47 VFC 3T4
    3) Z1 10V UD or 12 10V UD

    Likes(0)Dislikes(0)
    • admin

      December 1, 2014 at 9:27 am

      Hi Muthazhagan,

      Since the cap value is in coding format thus I suggest that you check it using the digital capacitance value. If 100VFC you got 100uf this means the VFC is the microfarad. If you get 1F6 as 1.6 or 16 uf this means the 100VFC is the capacitor working voltage.

      Jestine

      Likes(0)Dislikes(0)
  28. Ranko

    January 23, 2015 at 4:16 pm

    Hi
    I have bad caps on my motherboard with mark
    470 EFK. J90
    05 100 16G , and I dont know with which other cap I can replace them.
    Thank you

    Likes(0)Dislikes(0)
    • Jestine Yong

      January 24, 2015 at 2:09 pm

      Hi Ranko,

      The first one you can use 470uf with 25 volt and the second one 100uf with 16 volt.

      Jestine

      Likes(0)Dislikes(0)
  29. francisco

    February 12, 2015 at 6:00 pm

    Hello, I need to replace a capacitor marked
    3R
    470
    ELA

    Please help!

    Likes(0)Dislikes(0)
    • Jestine Yong

      February 14, 2015 at 2:07 pm

      HI Francisco,

      It is a 470uf. If you found this cap in computer motherboard you can use a 25 volt.

      Jestine

      Likes(2)Dislikes(0)
  30. lee

    March 17, 2015 at 3:44 am

    Hi
    i have a cap with
    47
    16G
    813
    Is this a 47uf 16V?
    thanks

    Likes(0)Dislikes(0)
    • Jestine Yong

      March 17, 2015 at 6:44 pm

      Hi Lee,

      Probably yes.

      Jestine

      Likes(0)Dislikes(0)
  31. SHAUN. K

    April 30, 2015 at 6:44 pm

    I have SMD aluminium electrolytic capacitor with markings
    J2
    10V
    UL
    Anyone knows the capacitance & voltage rating?
    The ESR value 6 ohms compared to several others less than 1 ohm is suspected to be faulty.

    Likes(0)Dislikes(0)
  32. Jose

    May 21, 2015 at 12:18 pm

    Hi
    i have a capacitor with
    33 EHA 0N2
    68 AHA 0Q2
    220 10A 0N4
    QIK 10 16V
    Would you like to help me the meaning,please.
    Many thanks

    Likes(0)Dislikes(0)
    • Jose

      May 21, 2015 at 12:24 pm

      The motherboard is a Nintendo N64 works with 3.3v and 12v

      Likes(0)Dislikes(0)
    • Jestine Yong

      May 23, 2015 at 10:55 am

      HI Jose,
      33uf,68uf,220 uf,10uf 16volt. As for the voltage, if the circuit board is using only 5 volt to run then use 16 volt in all caps.

      Jestine

      Likes(0)Dislikes(0)
  33. Chris lambert

    May 26, 2015 at 7:59 am

    I have some cap I can not locate with codes.
    1000
    AFT
    3R3

    And another
    100
    16v
    Vt

    Likes(0)Dislikes(0)
    • Jestine Yong

      May 27, 2015 at 7:40 am

      Hi Chris,

      The first one should be 1000uf (if the board is running on 5 volt or lower then use a 16 volt) and the second is 100uf 16 volt.

      Jestine

      Likes(0)Dislikes(0)
  34. Chris lambert

    May 26, 2015 at 8:02 am

    I also have a sot-23 chip with markings I can not identify
    It says. S1a 26

    Likes(0)Dislikes(0)
    • Jestine Yong

      May 27, 2015 at 7:42 am

      Hi Chris,

      Try this link:

      http://www.marsport.org.uk/smd/mainframe.htm

      Jestine

      Likes(0)Dislikes(0)
  35. David

    August 13, 2015 at 2:06 pm

    ((78 470 ela)) in a sony tv

    Likes(0)Dislikes(0)
    • Jestine Yong

      August 14, 2015 at 8:43 am

      Hi David,

      Use 470uf and if the line voltage is around 10 to 12 volt you can use a 16 volt cap. If the line is 16 to 20 volt you can use a 25 volt cap.

      Jestine

      Likes(1)Dislikes(0)
  36. milen

    August 17, 2015 at 3:19 pm

    Samsung LED TV main board capacitor, markings:

    22564
    100
    350

    What replacement should I buy?

    Likes(0)Dislikes(0)
    • Jestine Yong

      August 17, 2015 at 8:51 pm

      HI Milen,

      I suggest that you compare with the similar value cap in the same board using digital capacitance meter. The value most likely is 100uf 35 volt.

      Jestine

      Likes(1)Dislikes(0)
  37. Egy

    November 28, 2015 at 3:29 am

    Jestine Yong

    Hello 🙂

    100
    EFK.
    173

    Likes(0)Dislikes(0)
    • Jestine Yong

      November 30, 2015 at 10:17 am

      HI Egy,

      Use 100 uf. If the circuit line voltage is 5 volt you can use 10 or 16 volt cap.

      Jestine

      Likes(0)Dislikes(0)
  38. Anton

    December 16, 2015 at 4:19 am

    Hi Jestine, Can you pls confirm 100 HFK D04 means 100uF 4V....? Thanks.

    Likes(1)Dislikes(0)
    • Jestine Yong

      December 17, 2015 at 8:06 am

      Hi Anton,

      100 means 100uf but I can't confirm the D04.

      Jestine

      Likes(0)Dislikes(0)
  39. Magnus

    December 29, 2015 at 4:35 am

    Hey Jestine,

    I've got one that says:
    1g
    220
    6.3v

    I'm guessing it's 220uF 6.3v

    But what does the "1g" stand for?

    Likes(0)Dislikes(0)
    • Jestine Yong

      December 30, 2015 at 5:58 pm

      Hi Magnus,

      Yes it is 220uf and 6.3 volt. Sorry no info on the 1g-probably it can only be understood by the manufacturer.

      Jestine

      Likes(0)Dislikes(0)
  40. narine

    January 14, 2016 at 12:29 am

    Hello,

    I have a capacitor reading
    55
    470
    25A

    Is this a 4.7 micro farad 10v capacitor ?

    Likes(0)Dislikes(0)
    • Jestine Yong

      January 14, 2016 at 8:47 pm

      HI Narine,

      It should be 470uf and probably 25 volt. If you circuit is using 10 to 16 volt then it should be 25 volt.

      Jestine

      Likes(0)Dislikes(0)
  41. Mav

    January 23, 2016 at 5:36 pm

    Hi Jestine

    I have a smd aluminium electrolytic capacitor, which one do i need one?

    2E
    470
    ELA

    Many thanks
    Thanks

    Likes(0)Dislikes(0)
    • Jestine Yong

      January 25, 2016 at 9:57 am

      Hi Mav,

      It is 470uf as for the voltage, if the board is using 5 volt then you can use a 10 v or 16 volt cap.

      Jestine

      Likes(1)Dislikes(0)
  42. brad

    February 22, 2016 at 9:56 am

    can you help me find value of a motherboard very large cap 10mmx10mm

    value from top down

    R36
    249
    H76

    Likes(0)Dislikes(0)
    • Jestine Yong

      February 23, 2016 at 9:10 pm

      Hi Brad,

      Sorry no info on this.

      Jestine

      Likes(2)Dislikes(0)
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