- Jan 22, 2008
Ah OK, thanks for the explanation. I was not aware of them. I wonder how in practice they offer a significant improvement over standard ceramic caps for audio circuitry.No. He means a particular series called "x2y" that has nothing to do with mains protection. They're SMD MLCCs that have two caps in one package so that inductance cancels and so on. We talked about them in one of the CMRR threads. They're good for common mode shunt on entry for signal.