AIW-1 is a Grade 1 thin-build rectangular enameled copper wire with polyamide-imide (PAI) insulation – Class 220. Compared to Grade 2 heavy build, Grade 1 offers a thinner insulation layer, enabling higher copper fill factor and more compact winding designs where space is at a premium.

The rectangular cross-section maximizes copper density within the slot, reducing I²R losses and improving efficiency. The PAI insulation provides excellent thermal stability, chemical resistance, and mechanical toughness, making AIW-1 suitable for high-frequency inductors, compact transformers, and space-constrained motor windings where the voltage stress is moderate.

With a thermal class of 220°C, heat shock resistance up to 220°C, and a cut-through temperature exceeding 320°C, AIW-1 delivers reliable performance in demanding industrial and automotive applications. Grade 2 (heavy build) is available for higher voltage stress requirements.

·         Thin Grade 1 Insulation – Maximizes copper fill factor for compact, high-density windings where space is limited.

·         Class 220 Polyamide-Imide – Excellent thermal stability and chemical resistance, with cut-through ≥320°C.

·         Rectangular Cross-Section – 25-30% higher copper density vs round wire, reducing I²R losses and improving efficiency.

·         Precision Profile – Tight dimensional control with uniform insulation, suitable for edge-wound and formed coils.

·         Cost-Effective – Lower insulation material consumption than Grade 2, while maintaining Class 220 performance.

·         Standards Compliance – Meets GB/T 6109.20, IEC 60317-13, and NEMA MW 35-C requirements.

Key Technical Data: Heat Shock: 220°C · Cut-through Temperature: ≥320°C · Standards: GB/T 6109.20, IEC 60317-13, NEMA MW 35-C · Insulation: Polyamide-Imide (PAI)

Custom cross-sections and film grades are available upon request. Aluminum and CCA versions also available.

Below are representative sizes for Grade 1. Grade 2 (heavy build) is available upon request. Full dimensional table (0.0125–25 mm²) is available upon request.

Representative dimensions for Grade 1 thin build. Custom sizes and film grades available. Corner radius can be tailored. Breakdown voltage values are typical and depend on thickness and test method.

AIW-1 Grade 1 rectangular wire is specified where compact winding and moderate voltage stress are key considerations:

Valid for copper wire. Other spool types available upon request.

·         Dedicated Rectangular Wire Production – Specialized lines with in-line dimension laser gauges for tight tolerance control.

·         Class 220 PAI Insulation – Proven thermal and chemical performance for demanding applications.

·         Grade 1 and Grade 2 Available – Flexible film build selection to match your voltage stress and space requirements.

·         Global Compliance – GB/T 6109.20, IEC 60317-13, NEMA MW 35-C.

·         Flexible MOQ – Sample orders welcome for qualification testing.

·         Engineering Support – Free DFM feedback for customized profiles and dimensions.

 Need an AIW-1 Grade 1 rectangular wire sample or technical datasheet?

Contact our engineering team for free samples, detailed specifications, or a customized quotation.

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