Given the many discussions on capacitors replacement & the whole polymer vs. tantalum vs. ceramic, here's an interesting video I just discovered on the subject:
James Lewis - They're JUST Capacitors
Voltage impact on ceramic capacitance is also discussed in this article:
Temperature and Voltage Variation of Ceramic Capacitors, or Why Your 4.7µF Capacitor Becomes a 0.33µF Capacitor
And as the link is not obvious to find, for the Samsung stuff that JLCPCB offer as "basic" parts (they are not the worst, I just have a lot of them in my design so they are of interest):
Graphs for that nice 10uF 25V 0805 CL21A106KAYNNN at $0.0104 qty 1
Turns out it's about 5uF at 5V and 7uF at 3.3V... but you can get 9uF or more at 1.8V or less! Time to revisit some part numbers and packages, I guess.
And from the video, the tantalums doing bulk for the MC68882 on my homemade IIsi PDS adapter will *not* blow up, they are polymer, not MnO2!
James Lewis - They're JUST Capacitors
Voltage impact on ceramic capacitance is also discussed in this article:
Temperature and Voltage Variation of Ceramic Capacitors, or Why Your 4.7µF Capacitor Becomes a 0.33µF Capacitor
And as the link is not obvious to find, for the Samsung stuff that JLCPCB offer as "basic" parts (they are not the worst, I just have a lot of them in my design so they are of interest):
Graphs for that nice 10uF 25V 0805 CL21A106KAYNNN at $0.0104 qty 1
Turns out it's about 5uF at 5V and 7uF at 3.3V... but you can get 9uF or more at 1.8V or less! Time to revisit some part numbers and packages, I guess.
And from the video, the tantalums doing bulk for the MC68882 on my homemade IIsi PDS adapter will *not* blow up, they are polymer, not MnO2!
