Description
Polyamide-imide (PAI) 's first major market driver was precisely the need for a high-temperature magnet-wire enamel. Compared with composite EI/AIW, AIW achieves higher heat resistance (220℃), stronger corona resistance, refrigerant resistance and chemical resistance with a single PAI film, meeting severe overload, high-temperature and variable-frequency-drive duty. In flat form, AIW rectangular wire is widely used in PV inverters, charging piles, premium chip inductors and high-temperature motors.
Telison's AIW features polyamide-imide (AIW) as the insulating layer, applied via a multi-coating process. The conductor is a flat cross-section copper or aluminum flat wire. It can withstand a continuous operating temperature of 220°C and the tension during high-speed winding. The product offers high thermal stability, excellent corona resistance, and strong film adhesion. Compared to traditional polyester or polyester-imide insulated wires, it is better suited for high-temperature environments. Primary applications include high-end chip inductors for mobile phones, PV inverters, motors, charging piles, and other critical components.
Features
- Telison's AIW features polyamide-imide (AIW) as the insulating layer, applied via a multi-coating process
- High heat resistance: Can withstand a continuous operating temperature of 220°C and the tension during high-speed winding, thermal shock ≥240°C
- Superior mechanical strength, scratch and abrasion resistant
- Refrigerant and chemical resistance: stable to R134a/R1234yf and most solvents and impregnating varnishes
- Excellent corona resistance and advanced Material & Construction
- Uniform enamel coating application, ensuring superior insulation properties
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Overload tolerance: Thermal shock ≥240℃ (typically 250-280℃) for high reliability under overload.
- Compared to traditional polyester or polyester-imide insulated wires, it is better suited for high-temperature environments
- Excellent winding performance: Strong film adhesion, withstanding high-speed winding tension,with elongation exceeding 30%
- Primary applications include high-end chip inductors for mobile phones, PV inverters, motors, charging piles, and other critical components
- Compliant with NEMA, IEC, JIS, or customer-specified standards
Specifications
Products Size Range: Wide: 0.50-7.00mm Thickness: 0.08-1.60mm Minimum Insulation Thickness: 0.01mm(Single Side)
| AIW (Class 220) | |||||
| Base insulation | Polyamide-imide | ||||
| Thermal Class | 220 | ||||
| Thermal Shock Temperature (GB/T 7095.5-7 IEC 60317-27-29) | ≥240℃(典型 250–280 °C) | ||||
| Breakdown Voltage (GB/T 7095.5-7 IEC 60317-27-29) | ≥700V | ||||
| Elongation (GB/T 7095.1 IEC 60317-0-2 ) | ≥30% | ||||
| Bond strength | ≥0.3 N | ||||
| Bondability | Non-bondable | ||||
| Solderability | Non-solderable | ||||
Manufacturing Scope of Flat Wire
Certificate
The product has been certificated by SGS and UL
Application
Telison's AIW Primary applications include high-end chip inductors for mobile phones, PV inverters, motors, charging piles, and other critical components.
- PV inverters & charging piles - high-frequency pulse voltage under inverter duty; corona resistance is critical.
- High-end mobile-phone chip inductors - HF + high power density + miniaturisation; single-film PAI matches the full requirement set.
- VFD motors, servo motors, industrial drives - long-term corona ageing under inverter duty.
- Automotive electronics & NEV drives - high-frequency stress in motors, inductors, transformers.
- High-frequency transformers & inductors - combines HF signal integrity with thermal endurance.
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