Please identify these capacitors and values

Multi tool use
$begingroup$
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
$endgroup$
add a comment |
$begingroup$
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
$endgroup$
3
$begingroup$
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
Jan 15 at 3:44
add a comment |
$begingroup$
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
$endgroup$
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
edited Jan 15 at 3:40
SamGibson
11k41637
11k41637
asked Jan 15 at 1:34
JtlJtl
13219
13219
3
$begingroup$
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
Jan 15 at 3:44
add a comment |
3
$begingroup$
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
Jan 15 at 3:44
3
3
$begingroup$
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
Jan 15 at 3:44
$begingroup$
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
Jan 15 at 3:44
add a comment |
2 Answers
2
active
oldest
votes
$begingroup$
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).
$endgroup$
$begingroup$
I thought V means voltage. But what does the 212K1 and 136K4 mean?
$endgroup$
– Jtl
Jan 15 at 1:53
2
$begingroup$
@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
Jan 15 at 2:10
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
Jan 15 at 2:34
add a comment |
$begingroup$
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
$endgroup$
add a comment |
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2 Answers
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oldest
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2 Answers
2
active
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$begingroup$
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).
$endgroup$
$begingroup$
I thought V means voltage. But what does the 212K1 and 136K4 mean?
$endgroup$
– Jtl
Jan 15 at 1:53
2
$begingroup$
@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
Jan 15 at 2:10
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
Jan 15 at 2:34
add a comment |
$begingroup$
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).
$endgroup$
$begingroup$
I thought V means voltage. But what does the 212K1 and 136K4 mean?
$endgroup$
– Jtl
Jan 15 at 1:53
2
$begingroup$
@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
Jan 15 at 2:10
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
Jan 15 at 2:34
add a comment |
$begingroup$
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).
$endgroup$
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).
answered Jan 15 at 1:49


AnalogKidAnalogKid
2,07926
2,07926
$begingroup$
I thought V means voltage. But what does the 212K1 and 136K4 mean?
$endgroup$
– Jtl
Jan 15 at 1:53
2
$begingroup$
@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
Jan 15 at 2:10
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
Jan 15 at 2:34
add a comment |
$begingroup$
I thought V means voltage. But what does the 212K1 and 136K4 mean?
$endgroup$
– Jtl
Jan 15 at 1:53
2
$begingroup$
@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
Jan 15 at 2:10
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
Jan 15 at 2:34
$begingroup$
I thought V means voltage. But what does the 212K1 and 136K4 mean?
$endgroup$
– Jtl
Jan 15 at 1:53
$begingroup$
I thought V means voltage. But what does the 212K1 and 136K4 mean?
$endgroup$
– Jtl
Jan 15 at 1:53
2
2
$begingroup$
@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
Jan 15 at 2:10
$begingroup$
@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
Jan 15 at 2:10
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
Jan 15 at 2:34
$begingroup$
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
Jan 15 at 2:34
add a comment |
$begingroup$
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
$endgroup$
add a comment |
$begingroup$
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
$endgroup$
add a comment |
$begingroup$
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
$endgroup$
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
answered Jan 15 at 3:54


Sunnyskyguy EE75Sunnyskyguy EE75
65.8k22396
65.8k22396
add a comment |
add a comment |
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tPH4mzAPqmWW,JzaqX,TYENt9n7XUUhuoJ
3
$begingroup$
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
Jan 15 at 3:44