About Knowles
Knowles is a leading manufacturer of specialty electronic components. Knowles designs products that perform unique, critical functions for innovativetechnologies.
Some of Knowles brands include Dielectric Laboratories, Johanson Manufacturing, Novacap, Syfer, Voltronics and Cornell Dubilier.
Through custom engineering, scalable manufacturing, and extreme reliability, Knowles enables businesses to succeed in the most demanding applications across:
Core Applications
Electric and hybrid vehicle and automotive
Medical implantable and medical equipment
Military and Aerospace/Avionics
EMI and connector filtering, oil exploration, optical networks
Knowles’ product portfolio spans single-layer and multi-layer capacitors, EMI filters, and RF/Microwave components including filters, power dividers and couplers.
With the acquisition of Cornell Dubilier (CD) in 2023, Knowles expanded its capabilities to include high-quality film capacitors, electrolytic capacitors, mica capacitors, and supercapacitors — strengthening its position as a comprehensive supplier of high-performance passive components.
Knowles' Cornell Dubilier line of products traces its origins back to 1909, when William Dubilier developed the first capacitor using mica.
Having earned a global reputation for manufacturing quality, high-end capacitors, Knowles' Cornell Dubilier line of capacitors are used in demanding industrial applications.
