polyimide flat enameled copper wire piw

Test Item

Unit

Technical Standard

Test Result

Appearance

uniform colour and  without the defeat affecting product performance.

No defect

Conductor

Thickness (a)

mm

 ±0.030

1.253

Width (b)

mm

±0.050

5.320

Insulation Thickness

Thickness (a)

mm

0.060—0.110

 0.090

Width (b)

mm

0.060—0.110

0.100

Resistivity (20°C)

Ω.mm²/m

≤0.017241

   0.01701

Elongation

%

side a (mm) :≤2.5 30%

40%

Side a (mm): >2.5 32%

Adherence

The film distance of lose adherence shall not more than 1b after 15% elongation.

 not loss adherence

Heat Shock

No cracks visible in the filmcoating after bending the board side around a mandrel        6aby conditioning at 175°C

No Crack

Breakdown Voltage

KV

Min break down voltage: four of five specimens shall not lower than 1.0KV. one shall not lower than 50%

3.9,3.6,5.0,4.1,5.0

Package

Meet the relative standards

Meet the standard

Insulation varnish :  

Temperature Class
Degrees C

Polyvinyl Formal

Class 105

Polyurethane/Polyamide (Nylon)

Class 155

Polyurethane

Class 155

Polyurethane/Polyamide (Nylon)

Class 180

Polyurethane

Class 180

Solderable Polyester

Class 180

Solderable Polyester/Polyamide (Nylon)

Class 180

Modified Polyester/Polyamide (Nylon)

Class 180

Modified Polyester/Polyamideimide

Class 200

Modified Polyester

Class 200

Modified Polyester/Polyamideimide

Class 200

Modified Polyester/Polyamideimide

Class 220

Polyimide

Class 240

Polyvinyl Butyral Self Bonding over
Polyurethane / Nylon

Class 130

Modified Polyester/Polyamideimide/Bondcoat

Class 180