Please identify these capacitors and values












2












$begingroup$


photo of capacitors



I'm tracing a circuit. What kind of capacitors are these yellow things? The upper one has markings of "105V 212K1", what does 212K1 stand for? The lower one has markings of "335V 136K4", what does 136K4 stand for?






capacitor identification







share|improve this question











$endgroup$








  • 2




    $begingroup$
    Hi, I've rolled-back your question to the previous version. You can't add more, different component types into this identification question. FYI, these are the current "Component Identification Question Guidelines". You can see that one component per question is stated there. (Your current question, with two similar capacitors, probably won't get rejected just because it has two components, as they are similar.)
    $endgroup$
    – SamGibson
    2 hours ago


















2












$begingroup$


photo of capacitors



I'm tracing a circuit. What kind of capacitors are these yellow things? The upper one has markings of "105V 212K1", what does 212K1 stand for? The lower one has markings of "335V 136K4", what does 136K4 stand for?






capacitor identification







share|improve this question











$endgroup$








  • 2




    $begingroup$
    Hi, I've rolled-back your question to the previous version. You can't add more, different component types into this identification question. FYI, these are the current "Component Identification Question Guidelines". You can see that one component per question is stated there. (Your current question, with two similar capacitors, probably won't get rejected just because it has two components, as they are similar.)
    $endgroup$
    – SamGibson
    2 hours ago
















2












2








2


0



$begingroup$


photo of capacitors



I'm tracing a circuit. What kind of capacitors are these yellow things? The upper one has markings of "105V 212K1", what does 212K1 stand for? The lower one has markings of "335V 136K4", what does 136K4 stand for?






capacitor identification







share|improve this question











$endgroup$




photo of capacitors



I'm tracing a circuit. What kind of capacitors are these yellow things? The upper one has markings of "105V 212K1", what does 212K1 stand for? The lower one has markings of "335V 136K4", what does 136K4 stand for?






capacitor identification




capacitor identification






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 2 hours ago









SamGibson

10.9k41537




10.9k41537










asked 4 hours ago









JtlJtl

607




607








  • 2




    $begingroup$
    Hi, I've rolled-back your question to the previous version. You can't add more, different component types into this identification question. FYI, these are the current "Component Identification Question Guidelines". You can see that one component per question is stated there. (Your current question, with two similar capacitors, probably won't get rejected just because it has two components, as they are similar.)
    $endgroup$
    – SamGibson
    2 hours ago
















  • 2




    $begingroup$
    Hi, I've rolled-back your question to the previous version. You can't add more, different component types into this identification question. FYI, these are the current "Component Identification Question Guidelines". You can see that one component per question is stated there. (Your current question, with two similar capacitors, probably won't get rejected just because it has two components, as they are similar.)
    $endgroup$
    – SamGibson
    2 hours ago










2




2




$begingroup$
Hi, I've rolled-back your question to the previous version. You can't add more, different component types into this identification question. FYI, these are the current "Component Identification Question Guidelines". You can see that one component per question is stated there. (Your current question, with two similar capacitors, probably won't get rejected just because it has two components, as they are similar.)
$endgroup$
– SamGibson
2 hours ago






$begingroup$
Hi, I've rolled-back your question to the previous version. You can't add more, different component types into this identification question. FYI, these are the current "Component Identification Question Guidelines". You can see that one component per question is stated there. (Your current question, with two similar capacitors, probably won't get rejected just because it has two components, as they are similar.)
$endgroup$
– SamGibson
2 hours ago












2 Answers
2






active

oldest

votes


















4












$begingroup$

335 = 3.3 uF. 105 = 1.0 uF.



Those are dry tantalum electrolytics. The end with the solid bar is the + (anode) connection. The mitered corners of the upper decal also indicate the + end of a capacitor.



The lower capacitor was not intended to be an electrolytic; it was changed to one after the board design was completed. That is why the solder pads are smaller, the decal is not mitered, and the part overhangs the courtyard (the sides of the decal).






share|improve this answer









$endgroup$













  • $begingroup$
    I thought V means voltage. But what does the 212K1 and 136K4 mean?
    $endgroup$
    – Jtl
    3 hours ago






  • 1




    $begingroup$
    @Jtl The letter after the value is usually a tolerance code. V is a rare one, but from what I can see it means -0%/+100%; in other words, the manufacturer guarantees that the measured capacitance will be no less than the rated value and no more than twice the rated value.
    $endgroup$
    – Hearth
    3 hours ago






  • 2




    $begingroup$
    I suspect the 212K1 and 136K4 are date or lot codes, although they may encode something more useful. This guide looks informative, but be warned that it's just what came out at the top of a casual search.
    $endgroup$
    – TimWescott
    3 hours ago



















2












$begingroup$

The top shows the value, 105 = 1uF the bottom shows Mfg date code/factory code V =2924 SMD size Tantalum eg https://www.digikey.com/product-detail/en/avx-corporation/TAJA105K016RNJ/478-1649-1-ND/564681






share|improve this answer









$endgroup$













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    2 Answers
    2






    active

    oldest

    votes








    2 Answers
    2






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    4












    $begingroup$

    335 = 3.3 uF. 105 = 1.0 uF.



    Those are dry tantalum electrolytics. The end with the solid bar is the + (anode) connection. The mitered corners of the upper decal also indicate the + end of a capacitor.



    The lower capacitor was not intended to be an electrolytic; it was changed to one after the board design was completed. That is why the solder pads are smaller, the decal is not mitered, and the part overhangs the courtyard (the sides of the decal).






    share|improve this answer









    $endgroup$













    • $begingroup$
      I thought V means voltage. But what does the 212K1 and 136K4 mean?
      $endgroup$
      – Jtl
      3 hours ago






    • 1




      $begingroup$
      @Jtl The letter after the value is usually a tolerance code. V is a rare one, but from what I can see it means -0%/+100%; in other words, the manufacturer guarantees that the measured capacitance will be no less than the rated value and no more than twice the rated value.
      $endgroup$
      – Hearth
      3 hours ago






    • 2




      $begingroup$
      I suspect the 212K1 and 136K4 are date or lot codes, although they may encode something more useful. This guide looks informative, but be warned that it's just what came out at the top of a casual search.
      $endgroup$
      – TimWescott
      3 hours ago
















    4












    $begingroup$

    335 = 3.3 uF. 105 = 1.0 uF.



    Those are dry tantalum electrolytics. The end with the solid bar is the + (anode) connection. The mitered corners of the upper decal also indicate the + end of a capacitor.



    The lower capacitor was not intended to be an electrolytic; it was changed to one after the board design was completed. That is why the solder pads are smaller, the decal is not mitered, and the part overhangs the courtyard (the sides of the decal).






    share|improve this answer









    $endgroup$













    • $begingroup$
      I thought V means voltage. But what does the 212K1 and 136K4 mean?
      $endgroup$
      – Jtl
      3 hours ago






    • 1




      $begingroup$
      @Jtl The letter after the value is usually a tolerance code. V is a rare one, but from what I can see it means -0%/+100%; in other words, the manufacturer guarantees that the measured capacitance will be no less than the rated value and no more than twice the rated value.
      $endgroup$
      – Hearth
      3 hours ago






    • 2




      $begingroup$
      I suspect the 212K1 and 136K4 are date or lot codes, although they may encode something more useful. This guide looks informative, but be warned that it's just what came out at the top of a casual search.
      $endgroup$
      – TimWescott
      3 hours ago














    4












    4








    4





    $begingroup$

    335 = 3.3 uF. 105 = 1.0 uF.



    Those are dry tantalum electrolytics. The end with the solid bar is the + (anode) connection. The mitered corners of the upper decal also indicate the + end of a capacitor.



    The lower capacitor was not intended to be an electrolytic; it was changed to one after the board design was completed. That is why the solder pads are smaller, the decal is not mitered, and the part overhangs the courtyard (the sides of the decal).






    share|improve this answer









    $endgroup$



    335 = 3.3 uF. 105 = 1.0 uF.



    Those are dry tantalum electrolytics. The end with the solid bar is the + (anode) connection. The mitered corners of the upper decal also indicate the + end of a capacitor.



    The lower capacitor was not intended to be an electrolytic; it was changed to one after the board design was completed. That is why the solder pads are smaller, the decal is not mitered, and the part overhangs the courtyard (the sides of the decal).







    share|improve this answer












    share|improve this answer



    share|improve this answer










    answered 3 hours ago









    AnalogKidAnalogKid

    1,70125




    1,70125












    • $begingroup$
      I thought V means voltage. But what does the 212K1 and 136K4 mean?
      $endgroup$
      – Jtl
      3 hours ago






    • 1




      $begingroup$
      @Jtl The letter after the value is usually a tolerance code. V is a rare one, but from what I can see it means -0%/+100%; in other words, the manufacturer guarantees that the measured capacitance will be no less than the rated value and no more than twice the rated value.
      $endgroup$
      – Hearth
      3 hours ago






    • 2




      $begingroup$
      I suspect the 212K1 and 136K4 are date or lot codes, although they may encode something more useful. This guide looks informative, but be warned that it's just what came out at the top of a casual search.
      $endgroup$
      – TimWescott
      3 hours ago


















    • $begingroup$
      I thought V means voltage. But what does the 212K1 and 136K4 mean?
      $endgroup$
      – Jtl
      3 hours ago






    • 1




      $begingroup$
      @Jtl The letter after the value is usually a tolerance code. V is a rare one, but from what I can see it means -0%/+100%; in other words, the manufacturer guarantees that the measured capacitance will be no less than the rated value and no more than twice the rated value.
      $endgroup$
      – Hearth
      3 hours ago






    • 2




      $begingroup$
      I suspect the 212K1 and 136K4 are date or lot codes, although they may encode something more useful. This guide looks informative, but be warned that it's just what came out at the top of a casual search.
      $endgroup$
      – TimWescott
      3 hours ago
















    $begingroup$
    I thought V means voltage. But what does the 212K1 and 136K4 mean?
    $endgroup$
    – Jtl
    3 hours ago




    $begingroup$
    I thought V means voltage. But what does the 212K1 and 136K4 mean?
    $endgroup$
    – Jtl
    3 hours ago




    1




    1




    $begingroup$
    @Jtl The letter after the value is usually a tolerance code. V is a rare one, but from what I can see it means -0%/+100%; in other words, the manufacturer guarantees that the measured capacitance will be no less than the rated value and no more than twice the rated value.
    $endgroup$
    – Hearth
    3 hours ago




    $begingroup$
    @Jtl The letter after the value is usually a tolerance code. V is a rare one, but from what I can see it means -0%/+100%; in other words, the manufacturer guarantees that the measured capacitance will be no less than the rated value and no more than twice the rated value.
    $endgroup$
    – Hearth
    3 hours ago




    2




    2




    $begingroup$
    I suspect the 212K1 and 136K4 are date or lot codes, although they may encode something more useful. This guide looks informative, but be warned that it's just what came out at the top of a casual search.
    $endgroup$
    – TimWescott
    3 hours ago




    $begingroup$
    I suspect the 212K1 and 136K4 are date or lot codes, although they may encode something more useful. This guide looks informative, but be warned that it's just what came out at the top of a casual search.
    $endgroup$
    – TimWescott
    3 hours ago













    2












    $begingroup$

    The top shows the value, 105 = 1uF the bottom shows Mfg date code/factory code V =2924 SMD size Tantalum eg https://www.digikey.com/product-detail/en/avx-corporation/TAJA105K016RNJ/478-1649-1-ND/564681






    share|improve this answer









    $endgroup$


















      2












      $begingroup$

      The top shows the value, 105 = 1uF the bottom shows Mfg date code/factory code V =2924 SMD size Tantalum eg https://www.digikey.com/product-detail/en/avx-corporation/TAJA105K016RNJ/478-1649-1-ND/564681






      share|improve this answer









      $endgroup$
















        2












        2








        2





        $begingroup$

        The top shows the value, 105 = 1uF the bottom shows Mfg date code/factory code V =2924 SMD size Tantalum eg https://www.digikey.com/product-detail/en/avx-corporation/TAJA105K016RNJ/478-1649-1-ND/564681






        share|improve this answer









        $endgroup$



        The top shows the value, 105 = 1uF the bottom shows Mfg date code/factory code V =2924 SMD size Tantalum eg https://www.digikey.com/product-detail/en/avx-corporation/TAJA105K016RNJ/478-1649-1-ND/564681







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered 1 hour ago









        Sunnyskyguy EE75Sunnyskyguy EE75

        63.7k22194




        63.7k22194






























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