ULTEM FILM; Dielectric film UTF120

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ULTEM™ polyetherimide (PEI) UTF120 film offers solutions for professional-grade dielectric film capacitors, meeting the most stringent technical demands. The film exhibits stable properties through a range of temperatures (-40 °C to +150 °C) and frequency, including stable capacitance, good insulation resistance, stable dielectric constant (Dk) and low dissipation factor (Df). ULTEM UTF120 film has been validated with both film-foil and metalized electrodes, including flat aluminium, heavy edge/light body and fused/patterned electrode designs. ULTEM UTF120 film offers excellent handling through metallization, winding and capacitor squashing / flattening. Additionally, capacitors using ULTEM UTF120 film are also capable of passing industry-standard 260 °C reflow soldering processes.

This material data has been provided by Sabic.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts





23.0 °C

1.29 g/cm³

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ASTM D 792

Moisture absorption

23.0 °C

0.23 %

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ASTM D 570 | (50% RH, Equilibrium)

Water absorption

23.0 °C

1.16 %

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ASTM D 570 | (23°C/Saturated)

Technological properties

Application areas

Electronic Material



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