Explore our flagship high-performance double wrapped and custom insulated magnet wire solutions
Empowering high-frequency power electronics across Istanbul, Kocaeli, Bursa, Izmir, and Ankara
Türkiye has rapidly established itself as a dynamic global manufacturing hub bridging Europe, Asia, and the Middle East. With significant investments in electric vehicle (EV) ecosystems, industrial automation, defense electronics, renewable energy inverters, and high-capacity electrical transformer production, the demand for premium specialized magnet wire has reached unprecedented levels across key industrial corridors like Gebze, Kocaeli, Bursa, and OSTİM in Ankara.
At the center of this technological advancement is 0.1mm Double Wrapping Litz Wire (equivalent to single strand 38 AWG copper wire stranded and wrapped twice with protective textile or polymer films). High-frequency alternating current (AC) magnetic devices—such as resonant transformers, wireless power transfer (WPT) pads, solar grid inverters, and induction heating coils—suffer heavily from high-frequency losses known as the Skin Effect and Proximity Effect. 0.1mm double wrapping litz wire solves these thermodynamic and electrical challenges by distributing current across individually insulated micro-strands wrapped with a durable double serving of natural silk (USTC), nylon, PET film, Kapton (PI), or Mylar.
By using precision 0.1mm (38 AWG) enameled copper strands twisted in optimized pitch patterns, high-frequency AC current flows uniformly, minimizing AC resistance and thermal dissipation up to several hundred kilohertz (kHz).
The double serving layer (silk, nylon, or polyester wrap) adds superior mechanical toughness, preventing dielectric breakdown during tight automatic coil winding in industrial transformer manufacturing.
Available in Class F (155°C), Class H (180°C), and Class C (200°C) thermal ratings, ensuring operational stability in extreme industrial environments across Turkish power plants and automotive assemblies.
Tailored engineering solutions meeting the stringent standards of local Turkish manufacturers
Türkiye’s automotive powerhouse in Marmara—driven by domestic initiatives like TOGG and major international automotive OEMs—requires high-efficiency magnet wires for On-Board Chargers (OBC), DC-DC converters, and wireless charging pads. 0.1mm double wrapped litz wire with PI or ETFE insulation provides high dielectric breakdown strength and flame retardancy (UL94-V0 compliance), critical for automotive reliability.
With Türkiye’s ambitious solar energy targets, local inverter manufacturers in Izmir and central Anatolia demand specialized profiled rectangular and double served litz wires. The 0.1mm strand structure optimizes energy conversion efficiency in solar string inverters by significantly cutting copper losses at high operating frequencies.
Gebze’s industrial zone houses world-class transformer and inductor manufacturers. Custom 0.1mm stranded copper wires with double silk (2USTC) or film wraps ensure compact coil winding dimensions, low parasitic capacitance, and maximum thermal dissipation for medical equipment power modules and telecom switchboards.
Ankara's defense hubs demand ultra-reliable, specialized magnet wire built to withstand severe environmental stress. Double-wrapped litz wire ensures vibration resistance, high breakdown voltage, and precise inductance tolerances for advanced radar systems, high-frequency actuators, and military-grade power supplies.
How Tianjin Ruiyuan solves complex engineering challenges for automotive and power electronics clients
One of our European automotive clients required a high-frequency litz wire tailored for EV wireless charging systems. The application demanded exceptional solvent resistance and strict flame retardancy matching UL94-V0. Standard insulating materials could not satisfy these parameters without escalating cost beyond commercial feasibility.
After detailed technical consultation, Ruiyuan’s R&D team proposed an innovative custom solution: extruding an ETFE insulation layer over the double served stranded litz wire. Following a rigorous 1-year validation period, all technical and safety criteria were perfectly met. Today, after two years of collaborative development, this customized wire is in full mass production, serving leading automotive supply chains globally and in Türkiye.
Two decades of excellence in high-frequency magnet wire manufacturing
Tianjin Ruiyuan Electric Material Co., Ltd. (Ruiyuan) was established in 2002. Over the past 20 years, our core mission has focused on a single question: "How can we best satisfy our customers?" This relentless commitment has driven us to expand our production capabilities from ultra-fine enameled copper wire to high-frequency litz wire, USTC (silk covered wire), rectangular enameled copper wire, triple insulated wire (TIW), and specialized guitar pickup wire—spanning 6 major categories with over 20 distinct magnet wire types.
At Ruiyuan, clients in Türkiye and worldwide enjoy a comprehensive One-Stop Purchase Service combining cost-effective pricing with uncompromising quality control. Guided by our operational philosophy—"Customer Oriented, Innovation Brings More Value"—we act not merely as a magnet wire supplier, but as a complete technical solution partner tailored to your specific insulation, voltage, and frequency needs.








Everything you need to know about purchasing and customizing 0.1mm litz wire from Ruiyuan
Whether you need sample coils for R&D prototyping or full-scale factory production in Istanbul, Bursa, or Ankara, our engineering team is ready to assist you.
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