Meeting the rigorous demands of modern power electronics, the new CF-PP140 range of High temperature polypropylene film capacitors delivers a breakthrough in thermal stability and compactness. Designed to operate up to 140°C with superior energy density, these solutions are engineered specifically to solve space and thermal constraints in UAVs, eVTOL aircraft, and heavy vehicles.

The new CF-PP140 will be showcased for the first time at PCIM in Germany, at booth 6-127.

The CF-PP140 form a comprehensive range of standard components designed for applications requiring high energy density in a compact footprint. They support operating voltages from 450 V to 1500 V, offer an energy density of up to 250 J/L while pushing the polypropylene operating temperature up to 140°C. These capacitors feature a standard footprint to ease system integration, making them suitable for constrained electronic architectures.

Complementary, Exxelia offers a higher level of integration by combining CF-PP140 and a busbar from Exxelia SVM into fully customized “Power Block” capacitors: the CF-PP140B series. These tailored blocks can meet customers' specific size and electrical performance requirements, even in the most extreme applications.
Discover CF-PP140 High-Temperature Film Capacitor
The CF-PP140 product series provide an outstanding operating temperature capability of 140°C, compared to a typical 105°C for similar polypropelene film capacitors (PP). An outstanding energy density, punching current boundaries. For custom designs, energy density can reach 250 J/L, depending on configuration and application constraints.
The CF-PP140 capacitor range is intended for demanding applications where thermal constraints, compactness, and reliability are critical. Typical use cases include unmanned aerial vehicles (UAVs), eVTOL aircraft, and heavy vehicles such as agricultural tractors, where power electronics are exposed to high temperatures and limited volume.
With the CF-PP140 range, Exxelia offers:
How does CF-PP140 compares vs other dielectrics?CF-PP140, based on high-temperature polypropylene (PP-HT°), is positioned between standard polypropylene and high-temperature polymers. It extends PP operation up to 140 °C while maintaining a high energy density (up to 250 J/L). Compared with PET or PPS, CF-PP140 offers higher energy density at elevated temperatures, and compared with PEI or PTFE, it provides a more compact solution with significantly better volumetric efficiency. This balance makes CF-PP140 suitable for space and temperature-constrained power electronics applications.
The CF-PP140 range expands Exxelia’s portfolio of film capacitors for harsh environments, addressing the evolving requirements of engineers and procurement teams in aerospace, transportation, and industrial power electronics.
Exxelia is proposing 8 different high temperature film dielectrics (MML, PP HT, PP, PET, PPS, PEI, PTFE & Mica).
Updated at: June 2, 2026.
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