Today’s internet applications are hosted on blade servers installed in data centers around the world. The mass proliferation of blade servers demand low-cost components available in low-profile heights. While idle, the blade server CPUs will enter into low-power mode.
Embedded controllers are available in a range of form factors for various application areas. Regardless of the form factor, they are all powered by a large supply voltage which needs to be converted down to the low voltage rails of the controller. In low profile applications, polymer capacitors offer high capacitance in a reduced footprint. When board space is not at a premium, X7R ceramic capacitors can be utilized. Both polymer and X7R capacitors can be combined with KEMET’s C0G ceramics [...]
Surface amount electrolytic capacitors may have different derating rules associated with them, depending on their dielectric and cathode technologies. This CARTS 2004 paper shows why Tantalum, KO-CAP®, and AO-CAP® Capacitors have different derating guidelines.