28 gauge enameled copper wire

Wire Gauge:28 AWG
Conductor Material:Copper
Conductor Diameter:0.30 – 0.32 mm
Insulation Type:Polyurethane / Polyesterimide
Temperature Class:130°C / 155°C / 180°C
Standard:NEMA MW 80-C / IEC 60317

28 gauge enameled copper wire

Product Overview

28 Gauge enameled copper wire is a high-precision magnet wire designed for transformer windings, coils, motors, and electronic components. It features a high-purity copper conductor coated with a thin and uniform enamel insulation layer.

This type of magnet wire provides excellent electrical conductivity, strong insulation performance, and reliable durability, making it ideal for both industrial applications and precision electronic devices.

The thin insulation allows tight winding while preventing short circuits between turns, ensuring efficient electromagnetic performance.

Key Features

High Conductivity Copper

The conductor is made of high-purity copper, ensuring low electrical resistance and efficient current transmission.

Thin and Uniform Insulation

The enamel coating provides strong insulation while maintaining a compact winding structure.

Excellent Solderability

Polyurethane-based insulation allows direct soldering without removing the enamel layer.

High Temperature Resistance

Supports continuous operation up to 155°C or higher depending on insulation type.

Strong Mechanical Performance

Resistant to abrasion and bending during winding processes.

Available Sizes & Packaging

We offer flexible packaging options to meet different application needs:

  • 4 oz spool (≈ 500 ft)
  • 1 lb spool (≈ 2000 ft)
  • 5 lb / 10 lb industrial spool
  • Custom length and bulk supply

Different insulation builds (single, heavy) are available depending on application requirements.

Insulation Options

We provide multiple insulation systems based on application needs:

  • Polyurethane (PU) – solderable, flexible
  • Polyesterimide (PEI) – higher thermal resistance
  • Polyamide-imide (PAI) – premium mechanical strength
  • Dual coating (PEI + PAI) – high-performance applications

Quality Standards

Our enameled copper wire complies with international standards:

  • NEMA MW 80-C
  • IEC 60317
  • JIS / GB standards

All products undergo strict quality testing including:

  • Breakdown voltage testing
  • Elongation testing
  • Adhesion testing
  • Spark testing

Advantages of 28 AWG Magnet Wire

  • Excellent electrical conductivity
  • Compact winding capability
  • High insulation reliability
  • Good thermal performance
  • Easy processing and soldering
  • Suitable for high-frequency applications

Because of these advantages, 28 gauge magnet wire is one of the most commonly used sizes in electronics and transformer manufacturing.

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