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Optimising Power With TDK's PhaseCap Energy Plus PFC Capacitors

Updated: Dec 14, 2023

PhaseCap Energy Plus capacitor

In the world of electrical engineering, the role of capacitors is paramount. These devices work quietly behind the scenes to manage power flow, improve efficiency, and stabilise electrical systems. Among the frontrunners in capacitor technology, TDK has emerged with its new PhaseCap Energy Plus Power Factor Correction (PFC) capacitors, introducing two innovative varieties that promise to transform various applications.

Understanding Capacitors

Before delving into the PhaseCap Energy Plus PFC capacitors, let's grasp the fundamental role of capacitors. In essence, capacitors store and release electrical energy. They act as short-term energy reservoirs, capable of rapidly supplying energy when required and absorbing excess energy when it's available. This characteristic makes them invaluable in optimising power usage, reducing losses, and enhancing the overall efficiency of electrical systems.

Introducing PhaseCap Energy Plus PFC Capacitors

TDK has unveiled two exceptional types of PhaseCap Energy Plus PFC capacitors: gas-filled and resin-filled. These capacitors are engineered to elevate performance, durability, and efficiency across various applications.

Gas-Filled Capacitors

Gas-filled capacitors (B25674C* series) leverage an innovative design that utilises a gas medium to provide enhanced performance and reliability. By employing specialised gas compositions, these capacitors offer exceptional efficiency and stability, making them ideal for demanding applications requiring precise power factor correction.

Resin-Filled Capacitors

In contrast, resin-filled capacitors (B25675C* series) use a robust resin encapsulation technique to ensure durability and resilience in diverse operating conditions. These capacitors are engineered to withstand extreme temperatures, humidity, and mechanical stress while maintaining high performance and stability.

PhaseCap Energy Plus infographic

Features and Benefits

The PhaseCap Energy Plus PFC capacitors from TDK boast an array of features that set them apart:

  • Enhanced Efficiency: Both gas and resin varieties optimise power factor correction, leading to improved energy utilisation and reduced losses.

  • Durability: The gas-filled capacitors offer reliability through specialised gas compositions, while resin-filled capacitors excel in harsh environmental conditions.

  • Stability and Precision: These capacitors maintain stable performance over a wide range of operating conditions, ensuring consistent power quality.

  • Longevity: TDK’s capacitors are built to last, minimising maintenance requirements and providing long-term reliability with an expected service life of 240,000 hours.


The versatility and high performance of PhaseCap Energy Plus PFC capacitors make them suitable for a myriad of applications:

  • Industrial Machinery: Optimising power factor correction in motors, drives, and industrial equipment.

  • Renewable Energy: Enhancing efficiency in solar and wind power systems.

  • Electric Vehicle Charging: Ensuring efficient power usage in charging stations.

  • HVAC Systems: Improving energy efficiency in heating, ventilation, and air conditioning units.

Wind turbines situated across an open field

Gas vs Resin: Choosing the Right Capacitor

The choice between gas-filled and resin-filled capacitors hinges on specific application requirements. Gas-filled capacitors excel in precision and demanding environments, while resin-filled capacitors offer resilience in harsh conditions. Understanding the operational environment and the desired performance metrics aids in selecting the ideal capacitor type.

In conclusion, TDK's PhaseCap Energy Plus PFC capacitors represent a significant leap forward in capacitor technology. With their cutting-edge design, enhanced efficiency, and durability, these capacitors stand as a testament to TDK's commitment to innovation and excellence in the realm of electrical components. Whether in industrial settings, renewable energy, or electrical infrastructure, these capacitors pave the way for optimised energy usage and reliable power management.

To view which capacitors that we have in stock - please select the links below

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