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Forum Capacitor replacement
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Related

Capacitor replacement

Former Member
Former Member over 10 years ago

Hello everyone!

I would need your help solving a little problem where I am not sure of the value of a capacitor that I need to replace.

I have never seen a capacitor like this one (yep, I'm a noob) so I searched online for some info and I though I could read it's value...the problem is that when I desoldered it from the board I noticed that on the other side it had other things written that, to my little knowledge, suggest a different value. Here are the pictures:

 

image

From this one I read that the precision is B, and the value is 4.1 uF with max 400v. The rest of the letters I have no idea what they mean.

image

From this one I read that it is a 4,7 pF capacitor and the precision is M. The rest I do not understand.

 

What I would really like to know is what the actual value of the capacitor is and if possible, what the various things on both sides mean so that in the future I will be able to read them.

Thank you very much in advance

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Top Replies

  • mcb1
    mcb1 over 10 years ago +1
    Typing 472M into google gives you 26,700 replies or thereabouts. http://www.csgnetwork.com/capcodeinfo.html Your out by a long way ... Why are you thinking that is the problem.? I'd be looking more at…
  • mcb1
    mcb1 over 10 years ago in reply to Former Member +1
    Do you suggest replacing both the resistor and the capacitor at this point? Why? If the value of the capacitor (now you have it out) and the resistor are what they should be, then there is really no…
  • Former Member
    Former Member over 10 years ago in reply to mcb1 +1
    This is the main board from a 1970's/1980's tv...the power supply should be ok as it is a separate unit and I got it fixed a few months ago. The problem is that a few days ago the tv made a noise (like…
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  • peterjcs23
    0 peterjcs23 over 10 years ago

    472 I would expect means 4700pF...measure capacitance with a meter to check.

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  • Former Member
    0 Former Member over 10 years ago in reply to peterjcs23

    I don't have a meter capable of measuring capacitance but looking at the tables from the links in the answers above I'm pretty sure it's 4700 pF. Thank you

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  • Former Member
    0 Former Member over 10 years ago in reply to peterjcs23

    I don't have a meter capable of measuring capacitance but looking at the tables from the links in the answers above I'm pretty sure it's 4700 pF. Thank you

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  • peterjcs23
    0 peterjcs23 over 10 years ago in reply to Former Member

    okay, perhaps you should try to replace the capacitor, it is damaged. For example from Farnell..C947U472MYVDBA7317 - KEMET - CAP, CER, Y5V, 4700PF, 400VAC, RAD | Farnell element14 ...Peter

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