When it comes to developing high‑frequency transformers, EV chargers, transfer modules, litz wire remains the best choice to minimize skin and proximity effect losses. Out of many configurations, taped litz wire, where the conductor bundle is wrapped with an insulating film, provides higher dielectric strength and mechanical protection. The two most popular film materials include polyimide taped litz wire and PET litz wire (also known as mylar litz wire). They look a bit similar, but they are vastly different in performance and intended usage.
Taped litz wire is superior in high temperature application. With a dielectric strength of over 6000 V , this polyimide taped litz wire is the best option for Auto/ Aerospace/ Military Electronics, Cryogenic Systems and Ultra-High-Voltage Transformers where no failure option is available.
On the Contrary, PET litz wire is made with a PET film rated for 130 °C, It has good abrasion resistance and the insulation integrity is excellent, but the material cost is much lower. Frequently referred to as mylar litz wire this variety is popular in consumer electronics, industrial drives, medical devices and standard power modules – places where the heat load is medium and cost‑effectiveness is king.
As a professional litz wire manufacturer, Ruiyuan is good at making Polyimide taped litz wire and PET taped wire. And we can also supply silk covered litz wire,including natural silk covered litz wire, rectangular litz wire and so on. We engineer and fabricate each litz wire exactly to your requirements. To facilitate the work of the prototypers and the small batch manufacturers, we offer small batch customization starting from 3kg MOQ(depending on wire type and complexity). Get in touch with us today to discuss your project Our team of engineers are on hand to advise on the ideal solution and provide custom samples quickly.