AIW / UEW Class 180 / 220 Super Thin Rectangular Enameled Copper
Wire
Made of exygen free copper with rectangular shape.
Modern Enameled Copper Magnet Wire typically uses one to three
layers of polymer film insulation, often of two different
compositions, to provide a tough, continuous insulating layer.
Magnet wire insulating films use (in order of increasing
temperature range) polyvinyl formal or Formvar (PVF), polyurethane,
polyamide (PUW), polyester (PEW), polyester-polyimide (EIW),
polyamide-polyimide (or amide-imide) (AI-EIW), and polyimide (AIW).
Polyimide insulated magnet wire is capable of operation at up to
250°C. The insulation of thicker square or enamelled rectangular
aluminium or copper magnet wire is often augmented by wrapping it
with a high-temperature polyimide or fiberglass tape, and completed
windings are often vacuum impregnated with an insulating varnish to
improve insulation strength and long-term reliability of the
winding.
Characteristics | Standard | |
Appearance | Smooth Equality | |
Conductor Diameter | Width | 3.00 | ±0.050 | 0.298 | 0.299 | |
Thickness | 0.18 | ±0.050 | 0.180 | 0.181 | |
Thickness of self bonding layer | Min. | 0.002 | 0.003 | 0.003 | |
Thickness of insulation | Thickness | 0.005-0.015 | 0.008 | 0.008 | 0.008 |
| Width | 0.005-0.015 | 0.011 | 0.011 | 0.011 |
Overall Diameter (Including bonding layer) | Thickness | Max.0.219 | 0.201 | 0.202 | |
Width | Max.0.364 | 0.326 | 0.327 | |
Pinhole | | | 0 | |
Elongation | | 30 | 30 | |
Flexibility and Adherence | | |
Conductor Resistance (Ω/km at 20℃) | | 352.000 | 352.000 | |
Breakdown Voltage | | 1.650 | 1.250 | |
Heat shock | | |