Questions tagged [ceramic]
A kind of capacitor where ceramic material acts as a dielectric. They have less volumetric efficiency than electrolytic capacitors.
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Multiple smaller capacitors on power rail for NeoPixel / WS2812B strip
I read in the AdaFruit guide that a 500-1000uF capacitor is recommended on the power rail.
However, electrolytic capacitors in this capacitance are quite large. Depending on the length of the strip, ...
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Ceramic capacitor has no voltage rating, recommendations?
I'm trying to replace this low value ceramic capacitor marked R472KUK.
I figured out it's a 4.7nf (4700pf) with 10% tolerance.
What's the "R" at the beginning of its code? What does the &...
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DC bias vs AC voltage change rate on MLCC capacitors
I'm looking at the following MLCC capacitor, which is a 10uF X5R ceramic: official datasheet
I know that ceramic capacitors which aren't C0G have an important variation of their value depending con ...
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Is there a shielding difference from switching terminals of an MLCC capacitor?
For electrolytic capacitors, the capacitor has only one working polarity (or it
usually will get damaged if reversed).
For film capacitors, the outermost metal layers ("left" and "right&...
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NRF52840 chip antenna design
I am currently in the process of creating a custom PCB with a chip antenna. I have taken the schematic from the NRF9160-DK as a reference. I would use the same components, but leave out the coaxial ...
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Same capacitance, same class, same voltage rating, different package characteristic
The same capacitance has the same class at the same voltage rating. However, the capacitor package are different. Will the characteristics be different?
I usually wouldn't pay any attention to this, ...
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Can you replace ceramic or tantalum capacitors with aluminum electrolytic capacitors?
I have a question about the hookup for my 12VDC to 5VDC step down module - the K7805JT-500R3.
It states in the datasheet that ceramic capacitors are what can be used but it also states that tantalum ...
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low frequency ripple current RMS amps and temperature rise in MLCC
Manufacturers only specify this metric of 0.1, 0.5 and 1MHz.
Is there any way to calculate / estimate the temperature rise in these capacitors for much lower frequencies, in the Hz range, based on ...
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Which manufacturer makes these crystal units?
I'd like to identify the manufacturer of these crystal units. Apparently the first line contains the frequency information (8 MHz, 16 MHz...).
The second line starts with a small 'e' which is probably ...
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Single Letter Temperature Coefficient for Capacitors?
A certain parts supplier offers ceramic capacitors with temperature coefficients (tempcos) of single letters -- A, E, and so on -...
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Capacitance variation with applied voltage
I have found that the capacitance of some capacitors like ceramic capacitors can actually change when a DC bias voltage is applied across them. The voltage need only be a few volts to make significant ...
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What is the reason for exponential decay of ceramic capacitor leakage current?
I came across two Tektronix documents describing how to measure leakage current. Both of them say that current decays exponentially, which I don't understand. I expect a constant leakage current ...
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Will a ceramic capacitor work for a class-B amplifier output?
I am working on a project that uses a basic class-B amplifier design for lo-fi audio output (just plays some clicks and beeps through a small speaker as UI sounds). Here is my schematic:
For ...
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How can I make a huge ceramic chip resistor?
I'm an EE, not a physicist or chemist, so please forgive if this question is dumb.
I need a resistor that can dissipate many kW for 10 us, followed by > 10 ms off time.
Since the duty cycle is ~0.1%...
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What package is the best choice for MAX485 bypass capacitors?
What capacitor package is the best choice for bypassing the MAX485?
C1: between LCSC part #C342629 and #C89632?
C2: between LCSC part #C967612 and #C30926?
Note: this question is a following ...
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