Phycomp
Product specification
Surface-mount ceramic
EMI filter capacitors
X2Y
Series
2003 Apr 02 Rev.7
2
www.yageo.com
DESCRIPTION
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 comprise 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.
FEATURES
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.
RYA033
typical application
equivalent circuit configuration
Cy
Cx
Cy
line
input 1
input 2
GROUND
B
A
Fig.1
Simplified outline.