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CONMOLY / ENGINEERING & CONNECTIVITY

High-Temperature Capacitor Films

Reference configuration: Low-loss engineered fluoropolymer film for aerospace power electronics and harsh-environment capacitors, maintaining voltage and capacitance stability under heat, field stress and long energized duty.

High-temperature capacitor film and wound capacitor construction
Product form illustration · Final construction depends on configuration

Power Enablers

CM-POWER-FILM

Capacitor Films

Reference configurations only; specifications and certifications require confirmation.

  • Reference · 4 μm film
  • Reference · Low dielectric loss
  • Reference · High-temperature capacitance stability

Reference specifications

Selection reference. Published third-party figures below describe specific reference configurations; they are not Conmoly guaranteed values or certifications. Confirm the final construction and test requirements with engineering.

These are high-temperature capacitor-film material properties; finished-capacitor values still depend on metallization, winding and package design.

Scroll the table horizontally to view all configuration conditions.

ParameterReference valueConfiguration / condition
Temperature range−55 to +200 °CFilm material
Material constructionEngineered fluoropolymerMaterial system
Film thickness4 μmStandard value
Dielectric constant2.1Material property
Loss tangent0.0002Tanδ
Insulation resistance7,000,000 MΩ × μFAt 25 °C

Reference source: www.gore.com

Available configurations

Aerospace power electronicsFor high-power-density inverter, power-module and DC-link capacitor directions.
High-temperature industrialFor long-life systems with limited cooling or elevated ambient temperature.
Custom wound elementFilm and metallization are defined by capacitance, voltage, width and package.

Cable construction

Functional filmEngineered fluoropolymer film forms the low-loss dielectric core.
Metallized electrodesMetal layers are defined around capacitance, current density and self-healing.
Winding or stackTension, alignment and edge control maintain thickness and field consistency.
End connectionLow-resistance interfaces control pulse current and localized heating.
Package systemPotting, enclosure and thermal path support vibration and elevated temperature.

Selection checklist

Electrical targetCapacitance, working voltage, ripple current and peak power
Thermal boundaryContinuous temperature, hot spots and thermal cycling
Loss targetDielectric loss, ESR and allowable temperature rise
Mechanical envelopeFilm thickness, winding size, package and mass
ManufacturingMetallization, winding, end spray and encapsulation
Life validationVoltage, temperature, vibration and capacitance drift

Applications

  • Aerospace and defense power electronics
  • High-temperature inverter and DC link
  • Downhole tools
  • High-reliability pulse and filter capacitors

Interfaces & termination

  • Wound or stacked capacitor element
  • Custom width, thickness and roll diameter
  • Busbar, lead or module termination

Project validation checklist

  • Dielectric constant, loss tangent and insulation resistance
  • High-temperature voltage and capacitance stability
  • Electrical comparison after thermal cycling, vibration and shock
  • Long-duration energized, ripple and accelerated-life testing

Film values are material-level data. Finished-capacitor capability also depends on metallization, winding, package, cooling and electric-field design.

High-Performance Aerospace Wire
CM-POWER-HPW

High-Performance Aerospace Wire

Reference configuration: Temperature-resistant, chemically inert and abrasion-resistant engineered fluoropolymer insulation supports stable high-voltage, lightweight and long-term material reliability in current and next-generation aircraft electrical systems.

Reference · 600 Vrms directionReference · Stable PD behavior
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High-Temperature Magnet Wire
CM-POWER-MAGNET

High-Temperature Magnet Wire

Reference configuration: Engineered fluoropolymer insulation protects copper windings and maintains insulation resistance and breakdown performance in high temperature, high pressure, oil and hydrolysis environments.

Reference · 300–600 V ACReference · Up to 260 °C
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High-Voltage Power Feeder Cables
CM-POWER-FEEDER

High-Voltage Power Feeder Cables

Reference configuration: High-voltage, wide-temperature, low-springback feeder paths for aircraft main power and electrification systems, controlling partial discharge, thermal aging, abrasion and constrained routing.

Reference · 1000 Vrms @ 25 kftReference · −65 to +260 °C
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