Questions tagged [electrolytic-capacitor]
An energy-dense polarized capacitor type, used in low-frequency filtering applications.
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What is the current when the capacitor terminals are connected?
I need to know the current in a polarized electrolytic capacitor.
What is the practical limit for this current and how do I calculate?
I want to know what is the maximum current I can get when I put ...
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How to estimate electrolytic capacitance from foil area
I opened a failed 1000 μF electrolytic capacitor. It contains 2 foils coiled with paper and some wet dielectric.
With reasonable assumptions (to me), I can not derive marked capitance from this ...
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Do electrolytic capacitors lose lifetime during soldering in reflow oven?
Electrolytic capacitors service time is based on maximum operating temperature, among other things. When they are inside an SMD soldering oven, the temperature increases to over 375°C. Most of the ...
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Two polarized electrolytic capacitors in series VS two bipolars in parallel
I need one bipolar 4.7uF 50v electrolytic capacitor. I have polarized 10uf 50v capacitors and bipolar 2.2uF 50v capacitors. I can place two of the 10uF in series (negative leads joined) or two of ...
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Why is this circuit drawing excessive current (Suspected culprit: Large capacitor on switching DC-to-DC Converter Output)?
On a PCB of mine I'm employing two ADP2504 Switching DC-to-DC Converters (one fixed version outputting 3.5V and one adjustable version set to output 4V) which have their inputs connected to the output ...
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Do I need to insulate the case of an electrolytic capacitor from ground? [duplicate]
I'm designing a motor controller, and I'm trying to understand if I need to add insulation between the case of the bulk input capacitors and the grounded aluminum heatsink. I know that relying on the ...
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Need some help with electrolytic capacitors
I am restoring an old 1960s Sanyo reel to reel tape recorder, replacing most bad electrolytic capacitors.
On the preamplifier there are ten Rubycon 6.3V 4.7uF electrolytic capacitors. I assume it is ...
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Identifying a vintage capacitor
This is inside an Allen Wales (Model 9E) adding machine. It was manufactured in the late 30s or maybe sometime in the 40s from what I've read. There are notes from a technician scratched on the inside ...
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How to visually distinguish metal film and ceramic capacitors (leaded)?
This question only involves the leaded components.
Electrolytic capacitors are each to recognize since they are usually in cylindrical cans. However, I am not sure about distinguishing the other two ...
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What is the purpose of an electrolytic capacitor in this small electronics project?
As someone trying to learn electronics, I found the following diagram where there are these two electrolytic capacitors (470uF).
Could someone explain the use of these components? How does the number/...
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Verifying my capacitor calculation
I just received in the mail a 0-60 V power supply that has the capability of outputting 24 A. I needed a high-voltage, high-current power supply to help design and test high-powered LED arrays for ...
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Why are electrolytic capacitors still in production?
What are the advantages of using electrolytic capacitors?
I know in the past electrolytic capacitors would have more capacitance, but with Multi-layer ceramic capacitors (MLCC) they seem completely ...
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Where does the Step-Down Convertor used as compare to RECOM DC/DC converter?
I am reading Step-Down converter and given the circuit below, which is a step down converter. It consists of a MOSFET, inductor, diode, capacitor
And if I compare it with RECOM component DC/DC ...
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What do 'L2' or 'L3' marking codes on electrolytic capacitors mean?
I see a lot of these mysterious marking codes on very old (e.g. 1980) capacitors by different manufacturers.
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How important is capacitor life span? [closed]
As above.
I am deciding between 3 capacitors. I need 6 capacitors arranged in 2 banks with 3 capacitors in parallel each for a V+/V- unregulated power supply for an audio amplifier.
Capacitor 1: ...
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