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FIW (Fully Insulated Wire) is high-performance triple insulated winding wire, serving as an upgraded alternative to conventional TIW wire for switching transformers. A comprehensive range of finished outer diameters is available to support miniaturized transformer design and reduce overall production costs.
FIW delivers superior performance in automatic winding and direct solderability compared to TIW. The multi-layer repeated coating technology ensures uniform, defect-free insulation and stable high voltage resistance. It meets reinforced insulation safety standards without requiring additional insulating sleeves.
Features and Benefits
Multiple insulation thickness options enabling transformer miniaturization and cost reduction
Direct solderable at 390°C for 2 seconds without requiring stripping film
Thermal resistance up to 180°C with breakdown voltage exceeding 15KV
Cut-through resistance at 250°C with no breakdown within 2 minutes
Various insulation colors available
Outstanding machinability for high-speed automatic winding to boost productivity
Applications
Switching transformers, power adapters, fast chargers, network isolation inductors, wireless charging coils, automotive electronic windings, medical safety coils, miniature high-speed motors, and smart meter sensors.
Frequently Asked Questions
Is custom wire color acceptable?
Standard colors include natural red, black, transparent, green, and blue. Custom colors are supported.
Can thermal self-bonding layer be added to FIW wire?
Yes. Self-bonding FIW is a mass-produced mature product. An extra thermal adhesive layer can be coated externally. Coils can be fixed by heating after winding, eliminating the need for separate glue dispensing.
What conductor materials and insulating varnishes are available?
Regular conductors include copper, copper alloy, aluminum, and copper-clad aluminum (CCA). We support most domestic insulating and topcoat varnishes, as well as customized special varnishes for specific working conditions.
Can you produce orders below MOQ?
Production is available, but unit pricing will be higher. Typically, the unit price is 3–5 times the standard MOQ price plus a 1,500 RMB setup fee. If the calculated total amount exceeds the MOQ value, the MOQ price will be applied.
What is your complete packaging solution for FIW wire?
Wires are wound on plastic spools. Each spool is wrapped with bubble film and pearl cotton to prevent scratching, moisture, and oxidation. Spools are packed into export cartons with foam liner for shock absorption. Cartons are sealed and strengthened with packing belts.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2003
Total Annual:
44,000,000 - $75,000,000
Employee Number:
280~300
Ecer Certification：
Verified Supplier
About HUAYE
Company Overview
Founded in 2003, HUAYE is a high-tech enterprise specializing in the R&D, manufacturing, and sales of specialty magnet wire solutions. We provide high-performance wire products for customers in the electronics, electrical, new energy, automotive, and industrial sec...
About HUAYE
Company Overview
Founded in 2003, HUAYE is a high-tech enterprise specializing in the R&D, manufacturing, and sales of specialty magnet wire solutions. We provide high-performance wire products for customers in the electronics, electrical, new energy, automotive, and industrial sec...
