- Knowles Syfer (formerly Syfer Technology Limited) is a premier global manufacturer renowned for innovative application specific high-voltage, Hi-Q RF MLCCs and thru-hole/SMT EMI suppression filters. Our comprehensive product range includes; MLCCs include RF/Microwave/ultra-low ESR, high voltage to 12 k VDC, 250 VAC ratings, safety certified SMDs as well as space-grade parts. Our patented StackiCap™ is a unique capacitor assembly designed to achieve high capacitance and high voltage.


Newest Products View All (7)

X8R Temperature Coefficient MLCCs

Knowles Syfer's X8R dielectric temperature coefficient MLCCs have been developed to meet the demand from various applications in the automotive and industrial markets and in other electronic equipment exposed to high temperatures. Learn More

Non-Magnetic MLCCS

Multilayer ceramic capacitors with silver / palladium terminations, from Knowles Syfer, have often been used in medical applications. Learn More

AEC-Q200 Auto Grade Components

Syfer introduces their AEC-Q200 auto grade components for use in harsh automotive environment and are ideal for battery management systems, DC/DC conversion, on board AC/DC charging, PTC heater controllers, and DC/AC conversions. Learn More

E01 and E07 SMT EMI Filters

The Syfer range of feedthrough MLCC chip ‘C’ filters are 3 terminal chip devices designed to offer reduced inductance. Learn More

StackiCap™ Series Surface-Mount MLCs

Syfer StackiCap™ surface-mount MLCs are designed to provide high CV in compact packages and offer the greatest volumetric efficiency. Learn More

FlexiCap™ Flexible Termination

Syfer's FlexiCap™ is applied to the device under the standard nickel barrier finish to accommodate a greater degree of board bending than conventional capacitors. Learn More

Recent PTMs View All (1)

FlexiCap Multilayer Capacitor Publish Date: 2017-01-25

FlexiCap helps prevent the stress of bending and thermal expansion/contraction.

Duration: 3 minutes

Additional Content

Application Notes

Technical Articles

Brochures and Catalogs


White Papers

Manufacturer Web site