Taped Litz Wire 0.32mm 250 Strands High Temperature High Frequency PI Insulation Copper Litz Wire For Transformer

This high-performance copper litz wire features polyimide (PI) insulation for Class 180 thermal environments, making it ideal for transformer applications requiring exceptional temperature resistance and high-frequency performance.

RVYUAN offers two primary film insulation options: Polyesterimide (PET) for Class 130 environments and polyimide (PI/Kapton) for Class 180 conditions where sustained heat would compromise lesser materials. The adjustable taping overlap rate up to 55% ensures optimal insulation coverage, with precise manufacturing maintaining consistent overlap across hundreds of meters to eliminate weak points under high-voltage stress.

Properly manufactured, this insulation withstands breakdown voltages exceeding 6,000V in standard builds and can surpass 10,000V in multi-layer configurations.

SMPS and power inverter transformers operating at tens or hundreds of kilohertz benefit from the Class 180 rating of Kapton insulation, which significantly extends service life by reducing hot-spot temperatures and preventing unplanned shutdowns.

On-board chargers (OBC) and DC fast-chargers (DCFC) utilize profiled taped litz wire to achieve high current density within size-limited enclosures. The superior dielectric strength is particularly critical for emerging 800V battery architectures in electric vehicles.

RVYUAN supports flexible production quantities from 10kg to 50kg, depending on strand diameter and final geometry. Our vertically integrated manufacturing process in Tianjin enables rapid design iterations and eliminates coordination across multiple suppliers, allowing quick implementation of specification changes like thinner tape layers or tighter twist pitches.

Name: Taped Litz wire (155/class)

Specification: 0.32X 250

Model: 2UEW-F-PI

Tape Name: PI

Tape Specification: 0.025x20