These super and ultracaps seemed to make a lot more projects possible if they work the way they seem to be explained.
These are all in the $4 range which I am having a tough time believing their ratings. One is made by Maxwell the other 2 by Nesscap.
5v 1.5F 143mOhm
5v 2.5F 69mOhm
2.7v 15F 30mOhm
2.7v 3000F .29mOhm $60 Maxwell 2.4" diam x 5.5" high
2.7v 600F .64mOhm $$ ?? Nesscap 2.4" x 1.1"
I'm very skeptical of these numbers, not just because the top 3 are under 1" by 1" in size but because of the pricing. I'm looking at making a capacitive discharge welder and the ideal plans call for 4F @ 14-16v so a number of welds can be made without a "long wait" for recharge. I've looked at 16v electrolytic caps and it would cost quite a bit for 1F total let a lone 4F so I'm trying to see where the catch is here.
I'm also unsure of the ESR and how that effects the cap. Does a lower number mean a faster discharge rate? Again these numbers seem pretty incredible as well.
Can anyone verify the use of these and how they compare with traditional Aluminum electrolytic caps?
These are all in the $4 range which I am having a tough time believing their ratings. One is made by Maxwell the other 2 by Nesscap.
5v 1.5F 143mOhm
5v 2.5F 69mOhm
2.7v 15F 30mOhm
2.7v 3000F .29mOhm $60 Maxwell 2.4" diam x 5.5" high
2.7v 600F .64mOhm $$ ?? Nesscap 2.4" x 1.1"
I'm very skeptical of these numbers, not just because the top 3 are under 1" by 1" in size but because of the pricing. I'm looking at making a capacitive discharge welder and the ideal plans call for 4F @ 14-16v so a number of welds can be made without a "long wait" for recharge. I've looked at 16v electrolytic caps and it would cost quite a bit for 1F total let a lone 4F so I'm trying to see where the catch is here.
I'm also unsure of the ESR and how that effects the cap. Does a lower number mean a faster discharge rate? Again these numbers seem pretty incredible as well.
Can anyone verify the use of these and how they compare with traditional Aluminum electrolytic caps?