Overview
This is a grade 1 enamel layer round copper wire with Class H thermal resistance up to 180°C, manufactured in strict accordance with JIS standards. It features uniform thin polyurethane insulation with stable dielectric strength and outstanding thermal shock & softening breakdown resistance. This wire supports direct soldering without stripping enamel, greatly simplifying coil terminal welding procedures. The surface maintains a low static friction coefficient, enabling smooth feeding and neat winding on high-speed automatic winding machines, with tightly controlled finished outer diameter to guarantee consistent winding density. Covering a full range of standard conductor diameters with customizable sizes available, it is widely applied to miniature transformers, micro inductors, voice coils and precision small motors that demand heat resistance, easy soldering and stable winding performance.
Specification
| Parameter | Figure |
| Model NO. | 1UEW-H |
| Enamel Grade | 1 |
| Temperature Class (℃) | 180 |
| DC Resistance (Ω/m20℃) | 1.286~1.367 |
| Elongation (≥%) | 20 |
| Tensile Strength (>Mpa) | 240 |
| Pinhole Test (5m≤) | 0 |
Product Features
H-class Heat Resistance
Continuous operating temperature reaches 180°C, with excellent resistance to thermal shock and softening breakdown. Stable insulation performance even under prolonged temperature rise of small transformers and coils
Direct Solderable Polyurethane Insulation
No need for mechanical stripping before soldering. The enamel layer melts quickly at soldering temperature to form full, glossy solder joints, greatly boosting production efficiency
Low Static Friction Surface
Smooth coating reduces friction between wires and winding nozzles. Effectively prevents paint peeling and wire breakage during automatic winding
Complete Specification Range
Rich standard conductor diameters in stock; customized sizes are available to meet diverse winding demands of transformers, inductors and micro motors
Application
Small Power Transformers, High-frequency Transformers and Transformers for Power Adapters, Chargers and Switching Power Supplies, Voice Coils for Earphones
