
Phycomp
Product specification
Surface-mount ceramic
EMI filter
X2Y Series
2002 Jul 10 Rev.6
3
www.yageo.com
X2Y EMI FILTERS
Phycomp’s X2Y-series is a breakthrough in the design of ceramic multilayer products for decoupling and
filtering in an IPD (integrated passive device).
X2Y products are comprised of two identical Y-capacitors and one X-capacitor, integrated into a 4-terminal
device, which is available in standard MLCC sizes. Thanks to the unique multilayer construction the device
provides noise cancellation within the device, reducing ESL from nanohenry to picohenry levels.
Using the unique balance between the Y-capacitors and the shielded multilayer structure the X2Y products
offer superior decoupling and filtering.
The X2Y device performs as a broadband filter enabling better EMC compliance for electrical equipment in
a wide range of applications.
BENEFITS
Broadband Filter and Decoupler: X2Y is effective up to 10 GHz and frequencies beyond.
By-pass: Unlike feedthrough capacitors, X2Y devices are in by-pass and only handle the noise current.
Superior Balance: 2 closely matched Y-caps provide stable balance over time and temperature.
Ultra-low Inductance: typical equivalent series inductance (ESL) to less than 50 picohenries.
Ultra-low ESR: typical values of a few milli-ohms.
Lower Component and Placement Costs: X2Y can eliminate inductors, ferrites, standard capacitors,
resistors and surge devices normally combined to form filter networks in the past.
Board Space Reduced: Whether on the PCB board or IC Package, X2Y components allow for design
simplification resulting in a substantial reduction of board space needed.
APPLICATIONS
EMI filtering on DC motors
Filtered connectors (airbag connectors, RJ-45 connectors)
High speed data-line filtering
Decoupling of supply-lines in high speed digital circuits
Broadband filtering
/LQH
)LJ ;< 0XOWLOD\HUILOWHU FDSDFLWRU
&\
&[
*URXQG
(TXLYDOHQW &LUFXLW
&RQILJXUDWLRQ
7\SLFDO $SSOLFDWLRQ
/LQH