AIW220 High Temperature 0.175mmx0.88 Ultra Fine Rectangular Enameled Copper Wire

Short Description:

Width: 0.88mm

Thickness:0.175mm

Thermal rating: class 220

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Introduction

Rectangular enameled copper wire is widely used in compact electromagnetic devices, and the ultra-fine variant offers exceptional advantages for miniaturized applications. One typical specification is a width of 0.88 mm and a thickness of only 0.175 mm, resulting in a very high aspect ratio. This wire is insulated with a high-performance enamel coating rated for thermal class 220°C (Class R), but it is non-solderable directly (non-solderable type), meaning the enamel must be mechanically or chemically removed before termination.

Advantages

The ultra-fine rectangular shape provides a significantly higher copper fill factor compared to round wire of equivalent cross-sectional area. This allows designers to pack more copper into a given slot or winding window, reducing resistive losses and improving efficiency. The slim profile (0.175 mm thickness) enables the construction of very thin, high-density coils, ideal for space-constrained components. With a 220°C thermal rating, the wire can withstand extreme operating temperatures, ensuring reliability in high-heat environments such as automotive or industrial applications. Although it cannot be soldered directly, the robust enamel offers excellent electrical insulation and chemical resistance.

Features

This ultra-fine rectangular wire is commonly used in:

Miniature transformers and inductors for portable electronics

High-frequency planar transformers

Small solenoids and actuators in precision instruments

Automotive sensors and electric vehicle components where space and thermal management are critical

Medical devices requiring compact, reliable windings

The 0.88 mm × 0.175 mm rectangular enameled copper wire (220°C, non-solderable) delivers outstanding copper density and thermal endurance, making it an excellent choice for advanced, high-performance electromagnetic devices where every millimeter matters. We support small batch order, MOQ is 20kg.We welcome all genuine inquiries, and will provide whatever information you request.

Specification

Item	Rectangular enameled copper wire
Width (mm)	0.88
Thickness (mm)	0.175
Thermal rating	220℃

Application

5G base station power supply

EV Charging Stations

Industrial Motor

Maglev Trains

Medical Electronics

Wind Turbines

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About us

Founded in 2002, Ruiyuan has been in the manufacture of enamelled copper wire for 20 years.We combine the best manufacturing techniques and enamel materials to create a high-quality, best-in-class enameled wire. The enameled copper wire lies at the heart of technology we use every day – appliances, generators, transformers, turbines, coils and much more. Nowadays, Ruiyuan has the global footprint to support our partners in marketplace.

Our Team
Ruiyuan attracts many outstanding technical and management talents, and our founders have built the best team in the industry with our long-term vision. We respects the values of each employee and provides them with a platform to make Ruiyuan a great place to grow a career.