Press Releases

Knowles Enhances Class I Ceramic C0G Series Capacitors to Achieve Twice the Maximum Capacitance, Exceeding Industry Norms

With a maximum capacitance of 44nF/1kV and 66nF/630V in a compact chip size of 1210, the extended series is well suited to support LLC type DC/DC converters in demanding environments.

ITASCA, Ill., November 19, 2025 -- Knowles Corporation (NYSE: KN), a leading manufacturer of specialty electronic components, including high-performance capacitors, radio frequency ("RF") filters, advanced medtech microphones, and balanced armature speakers, today announced it is extending the range and performance of its Class I Ceramic C0G Series Capacitors to better support LLC type DC/DC converters. Knowles’ unique construction allows these VM2 capacitors to offer higher capacitance values in a compact chip size.

Learn More About MLCCs: https://www.knowles.com/products/capacitors

The VM2 series of C0G ceramic capacitors includes:

• 500V: 39nF – 66nF
• 630V: 39n – 66nF
• 1kV: 27nF – 44nF

   
  “This product range is designed with higher standards for performance and efficiency to align with next-generation electrification systems, including those using SiC-based converters,” said Jonathan So, Applications Engineer at Knowles. “It’s an ideal fit for high-power density DC/DC converters in applications like EV onboard chargers, wireless charging systems, and potentially DC fast-charging infrastructure.”

  Key Features & Advantages
  

• Extended Capabilities: Vertical Novel internal electrode design increases performance when handling ripple current.
• Compact Size: Chip size 1210 (3.2 x 2.5mm) can reduce component count and potentially replace a two-chip stack configuration.
• Wide Operating Temperature Range: Available in an AEC -Q2000-qualified, industrial-grade operating range of -55 degrees Celsius to 125 degrees Celsius.
• Best-in-Class ESR: Exceptional equivalent series resistance (ESR) ensures thermal stability in high-current, complex layouts.
  

  This range extension is driven by the growing demand for higher power density and more volumetrically efficient converters in both EV and industrial markets. Knowles MLCCs support these goals by reducing losses and enhancing thermal performance in a small form factor.
  

  See the full datasheet here: Surface Mount MLCC C0G Family Datasheet

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About Knowles
Knowles is a leading manufacturer of specialty electronic components. We design parts that perform unique, critical functions for innovative technologies. Through extreme reliability, custom engineering, and scalable manufacturing, we enable businesses to succeed in the most demanding applications across MedTech, Defense, and Industrial markets.

Our high-performance capacitors, RF/Microwave filters, advanced medtech microphones, balanced armatures, and miniaturization products enable and enhance the performance of technologies with the power to change, improve, and save lives. Founded in 1946 and headquartered in Itasca, Illinois, Knowles has grown into a global organization with employees spanning 11 countries.

For more information, visit https://www.knowles.com.