Film for film capacitors, metal laminate, film capacitor, power control unit, electric vehicle, and electric aircraft

A film for film capacitors, comprising two types of resin layers that are different in thicknesses,

• wherein with the resin layer A of the two types of resin layers being a layer that is smaller in thickness and resin layer B thereof being a layer that is larger in thickness, the film for capacitors includes the resin layer A on at least one side of the resin layer B;
• has an XA of 0.050 or more and 0.80 or less calculated based on the following formula (i) from atomic fractions for hydrogen atom H, carbon atom C, sulfur atom S, silicon atom Si, nitrogen atom N, and oxygen atom O contained in the resin layer A;
• has a dielectric loss tangent of 0.50% or less measured at 10 KHz under an atmosphere at 23° C.;
• and satisfies at least one of the following conditions 1 and 2:
• XA=(atomic fraction for carbon atom C+atomic fraction for nitrogen atom N+atomic fraction for sulfur atom S+atomic fraction for silicon atom Si)/(atomic fraction for hydrogen H+atomic fraction for oxygen atom O), Formula (i)
• Condition 1:
• a melting point measured by DSC is at least 180° C., and
• Condition 2:
• a glass transition temperature measured by DSC is at least 130° C. and not more than 370° C.