EMI Filters > X2Y Filters


X2Y filters are manufactured in the same way as conventional MLCC’s but have a special internal architecture that results in ultra-low ESL (Equivalent Series Inductance) through opposing current flows in adjacent parallel plates. They are not feedthrough devices, but act as bypass filters so are not current limited - the only signal passing through the chip is the filtered noise to ground. They are ideal for twin-line applications such as motors, amplifier inputs or twisted pair (balanced line) applications, where they are fitted between the lines with the centre terminal taken to ground. Incorporating the capacitors in a single ceramic element eliminates any capacitance shift through temperature variation.