This document introduces the features of X2Y series surface mount ceramic EMI filter capacitors. X2Y series is effective up to 10 GHz with ultra low ESL and DCR.
The X2Y® series from Yageo integrates two Y‑capacitors and one X‑capacitor in a four‑terminal, surface‑mount package. The multilayer construction provides broadband EMI filtering and decoupling with ultra‑low ESL, enabling replacement of multiple inductors or capacitors in high‑speed and motor applications.
The datasheet details electrical characteristics (rated voltage, capacitance range, tolerance, dissipation factor), mechanical dimensions for standard MLCC sizes, selection charts for X7R dielectric devices, and test procedures per IEC standards. Revision history shows updates through 2006.
| Rated voltage | 10 V, 16 V, 25 V, 50/63 V, 100 V |
|---|---|
| Capacitance range (Y‑capacitor) | 1.5 nF to 1 µF |
| Capacitance tolerance after 1 000 h | +20 % |
| Insulation resistance (after 1 min, DC) | R × C > 500 s |
| Maximum capacitance change with temperature | +15 % |
| Dielectric material | X7R |
| Typical aging rate | ≈1 % per time decade |
The X2Y series is offered with rated voltages of 10 V, 16 V, 25 V, 50/63 V and 100 V.
The Y‑capacitor covers a capacitance range from 1.5 nF up to 1 µF, depending on package size.
Capacitance tolerance after 1 000 hours of aging is specified as +20 %.