Quark fried, blown capacitor...

[BrianG]

Seems like a neat little package. The transient supressors sound useful to shunt spikes, and there are a few high frequency caps (which look like the one that burnt on the Quark BTW).

The description supports the theory that several smaller caps are better than one single one of the same overall value because there is more surface area to dissipate the heat. Unfortunately, the cap on there looks like it's only good up to 16v. I'm sure you can find low-ESR caps on Digikey - just look for caps with very low resistance and can handle up to 105*C.

[zeropointbug]

Yah, i agree with you on that one. I've noticed say... a 1000uF cap has .017mOhm impedance @100khz, and a 2200uF has only .013mOhm. So obviously more of a smaller cap is better.

I'll see what I can find on Digikey, maybe we can make a sticky thread on Quark accessories, and maintenance, and stuff?

[zeropointbug]

hmmm, all I can find on Digikey is surface mount type caps, but a good selection though.

Also, what is the difference between cut-tape (CT), and Tape and Reel (TR).

I would like to find out what the voltage ratings on the ceramic caps(Novak trans-cap), and the transient chip are. Then maybe I could just mount a higher voltage cap to it?

I'm sure ESC manufacturers could integrate these chips onto their boards, you would think. For example, the Quark, they could have soldered the FET's closer to each other, and added an extra capacitor, maybe a few more ceramics too, their is room after all.

[zeropointbug]

It looks like three of the trans caps in series will provide the same ripple current as three 35v 330uF caps in parallel. Plus the hf ceramic caps, and the transients are a bonus. I think I can make a nice little package of three of these soldered together nicely.