FIW4 0.090mm Green Full Insulated Enameled Copper Wire is a high-precision ultra-fine 4-layer full insulated wire (FIW4), non self-bonding, Class 130/155/180 thermal grade. Adopting 99.95% high-purity oxygen-free copper conductor with four-layer reinforced polyester insulation and uniform green pinhole-free enamel coating, this FIW4 wire delivers stable dielectric strength, reliable voltage resistance and consistent dimensional accuracy.

Compared with ordinary 1-2 layer UEW enameled wire, the 4-layer full insulation structure effectively eliminates inter-turn short circuit and insulation breakdown during high-density tight winding. It is widely used for standard industrial micro coils, mini inductors, consumer electronics and general precision winding applications.

Standard Name: FIW4 0.090mm Green 4 Layers Full Insulated Polyester Enamelled Copper Wire, Class 130 (Non Self-Bonding)

• 4-Layer Full Insulation Protection: Professional FIW4 four-layer reinforced insulation structure provides superior dielectric strength, effectively prevents inter-turn short circuit and insulation damage during ultra-fine high-density winding.
• Class 130 Thermal Stability: Standard Class B 130℃ heat resistance ensures long-term stable operation under normal industrial working temperature.
• High Breakdown Voltage & Zero Pinhole: Uniform green polyester enamel coating with zero pinhole defects guarantees reliable voltage resistance and consistent insulation performance.
• Ultra-Low Inter-Turn Capacitance: Optimized multi-layer insulation structure reduces inter-turn capacitance interference, improves coil stability and signal accuracy.
• Precision Dimensional Consistency: Strict wire diameter tolerance and smooth enamel surface support high-speed automatic winding.
• Excellent Solderability & Processability: Standard polyester insulation features easy stripping and fast soldering, fully compatible with automatic winding equipment.

• Standard micro inductors, miniature transformers, low-frequency choke coils
• Ordinary precision sensors, consumer electronic coils, small household appliance components
• Smart wearable devices, daily mini consumer electronic windings
• General communication electronic parts and common electromagnetic winding modules

Adopts standard industrial moisture-proof and dust-proof spool packaging with customizable spool sizes. All Class 130 FIW4 wires pass 100% full inspection before shipment, featuring zero pinhole, stable dimension and uniform insulation. Support OEM customization, small batch trial orders and large-scale bulk supply, compliant with international electronic industry standards.

Founded in 2003, Hyper Wires is a leading manufacturer and exporter of high-performance electromagnetic wires, including taped litz wire, specialty magnet wire, and related winding solutions. With over 20 years of R&D and production experience, we deliver over 10,000 tons of products annually to customers worldwide.

Xianning Base:

5,000 tons/year, 35,000 m² factory area

Dongguan Base:

3,000 tons/year, 10,000 m² factory area

Vietnam Base:

2,000 tons/year, 5,000 m² factory area