To offer another option for engineers to meet the reliability and performance requirements of demanding automotive and industrial applications, Knowles is introducing a new capacitor series: Type PPH double metallized polypropylene film capacitors. Designed for applications operating under high voltages, frequencies, currents, and temperatures, these capacitors play a critical role in protecting and stabilizing modern electronic systems, especially for automotive and industrial power circuits. 

Ceramic core inductors are widely used in RF and microwave circuits where stable inductance, reliable performance, and consistent manufacturability are important. They are commonly used in filtering, impedance matching, oscillators, and other RF signal conditioning applications across a wide range of commercial and industrial designs.

As demand continues to grow for cost-effective and reliable RF components, Knowles is expanding its ceramic core inductor portfolio to support standard commercial, industrial, telecom, and medical applications that require dependable and consistent RF performance.

In 2025, our team continued to share insights intended to help engineers navigate evolving technologies, design challenges, and application demands. We hope our technical resources and industry perspectives have supported your work throughout the year, and we sincerely appreciate your continued trust and readership.

Knowles’ DSM supercapacitor modules use EDLC cells in series to expand energy storage capacity across a broader voltage range. Their instant charge and discharge capabilities outperform batteries, but without the shipping restrictions, thermal runaway risks, or much shorter lifespans associated with lithium-ion technology. 

Many applications today increasingly demand miniaturized surface-mount components that can perform reliably at ever-increasing working and testing voltages. As a result, Knowles recently released a new range of X1/Y2 safety-certified surface-mount multilayer ceramic capacitors (MLCCs). 

Improving overall system performance starts with foundational component selections. Growing demand for high-energy, reliable and compact converters in electric vehicles (EVs) and other industrial and energy applications is encouraging development in components likemultilayer ceramic capacitors (MLCCs). MLCCs are known for their excellent electrical properties, reliability, and compact size; however, the demands they face only continue to grow.

This past year, Knowles took bold strides in our journey to become an industrial technology company dedicated to providing customers with the high-performance parts required for their most demanding applications.

In 2024, our experts were dedicated to breaking down engineering fundamentals and exploring the latest industry trends and challenges. We hope you’ve found our insights and guidance helpful throughout the year, and we’re grateful for your continued trust and readership. 

As we look back on the past year, we’re excited to highlight five of our most popular blog posts, just in case you missed them. 

Electromagnetic interference degrades electronic performance and causes unintended outcomes like signal distortion, data corruption and system malfunctions. To minimize interference, Knowles Precision Devices has expanded EMI filter offerings to include hermetically sealed EMI filters that attenuate unwanted EMI signals while allowing desired signals to pass. SFSW series filters were designed to preserve signal integrity and ensure reliable operation in high-reliability applications with strict electromagnetic compatibility standards.

Here's what you can expect from our SFSW series:

When it comes to aerospace and defense applications, every single component plays a role in the success and longevity of the system. Capacitors are vital in flight control systems, radar systems, signal intelligence equipment and more. They support functions across guidance and control systems, electronic warfare (EW) and power supply units. To best support these development projects, Knowles sought MIL-PRF-55681 qualification for ten capacitor styles we manufacture and test in the United States. With this qualification, you can be assured that you’re using robust and dependable ceramic capacitors in your mission-critical systems.