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Film-Reinforced Mica-Insulated Wire 1.9*4.25 Application Generators, Transformers, and Other Equipment Conductor Material Copper Sheath Material Polyester Insulation Material Mica Tape Material Shape Flat Wire Range of Application Refractory Certification ISO9001, CE Product Name Mica Tape Wrapped Copper Flat Wire Keywords Film-Reinforced Mica-Insulated Wire Side a 0.9mm~6mm Side B 2mm~16mm Size Customization Material T2/Tu2 Insulation Layer Customization Core Function High Voltage and Corona Resistant Winding Wire Mechanical Performancev High Wear Resistance and Bending Durability OEM & ODM Custom Accept Transport Package Pallet or Customization Specification Film-Reinforced Mica-Insulated Wire 1.9*4.25 Trademark SHENLONG Origin Jiangsu, China Production Capacity 10000 T/Year MICA TAPE WRAPPED COPPER FLAT WIRE Mica Tape Wrapped Copper Flat Wire is a high-performance winding wire designed for demanding high-voltage, high-temperature motor and transformer applications.

Using a copper flat conductor as the base, it is tightly wrapped with mica tape insulation, optionally reinforced with polyimide (PI) film and polyester (PET) film to deliver outstanding dielectric strength, corona resistance, and mechanical durability.

Compared with standard enameled round wire, this mica-insulated copper flat wire offers a higher slot fill factor, better heat dissipation, and significantly improved service life under inverter pulse voltages and harsh thermal conditions.

It is an ideal choice for EV drive motors, wind power generators, high-voltage transformers, industrial servo motors, rail transit traction motors, and aerospace power systems that require high voltage resistance, heat resistance above 200°C, corona resistance, and long-term reliability.

KEY FUNCTIONAL FEATURES HIGH-VOLTAGE & CORONA RESISTANCE Mica tape primary insulation withstands up to 800V pulse voltages and effectively prevents corona erosion under inverter-driven conditions, ensuring stable long-term operation in high-frequency PWM environments.

ULTRA-HIGH TEMPERATURE PERFORMANCE Operating range of 220°C–240°C continuous with short-term capability to 400°C, maintaining flexibility across extreme temperature variations and thermal cycling without degradation.

SUPERIOR MECHANICAL DURABILITY Composite PI/PET reinforcement provides excellent wear, tear, and abrasion resistance, eliminating mica brittleness and ensuring process-friendly performance during automated winding and insertion.

OIL & CHEMICAL RESISTANCE Proven compatibility with transformer oil, refrigeration fluids, and industrial solvents, while maintaining inherent flame-retardancy for enhanced safety in harsh environments.

OPTIMIZED SLOT FILL & CUSTOMIZATION Rectangular flat conductor geometry increases copper density and heat dissipation;full customization of size and insulation thickness available for OEM/ODM projects.

Specification Item Of Inspection Standard Test Result Appearance Glass Around The Cladding Should Be Smooth,Continuous,There Is No Physical Damage And Impurities Qualified Conductor Size A a ±0.03 mm a-0.01 mm B b ±0.07 mm b-0.02 mm R r±25% mm Pass Insulation Thickness mm mm Max Outside Thickness 2.68 × 9.10 mm 2.64 × 9.02 mm Tensile Strength / / Elangation ≥30 % 38% Spring Back Angle ≤4.5 degree 3.6 degree Rigidity / / Flexibility/Bending Bending 10A 10B In 180°,The Insulating Layer Should Not Be Cracking.

Qualified Adhesiveness Ins.Layer Not Loose And Crack. / D.C.Resistance At 20 ℃ ≤0. Ω/m 0.

Ω/m Resistivity ≤0.017241Ω ·mm²/m 0.016845 Ω ·mm²/m Breakdown Voltage (10A 10B Bending)≥7.5KV Aging/Thermal Shock Ins.Layer Not Crack / Test Result Qualified Remarks The Self-Adhesive Is Qualified, Bonding At 180 Degrees For 30 Minutes Structural Layer Material Core Function Pain Point Solved Inner. Layer(Primary.

Insulation) Mica. Tape High. Voltage&Corona. Resistance Solves. The. Problem. OfEasy. Breakdown. And. Aging. OfOrdinary. Insulation. Under. High. Voltage. Middle. Layer(Thermal. Reinforcement) Polyimide(PI) High-Temperature. Resistance&Toughness Solves. The. Brittleness. And. Powdering. Issues. OfMica;Enhances.

Thermal. Rating. Outer. Layer(Mechanical. Protection) Polyester(PET) Toughness&Cost. Efficiency Provides. Extra. Tear. Resistance. And. Aids. InBonding/Formation. Application Field Typical Equipment Core Problem Solved New. Energy EVDrive.

Motors High Voltage Resistance(Withstanding 800 V Pulse Voltage) Power&Energy Wind Turbines, Transformers Long Life(>20 Years),Weather Resistance Advanced Manufacturing Industrial. Robots,Servo. Motors Corona Resistance(Resisting Inverter Harmonics) Transportation High-Speed.

Trains,Subways Heat Resistance(>200°C),Anti-Vibration Aerospace Aircraft. Power. Systems Wide Temperature Range, Lightweight FA d the package before you pay the balance. Q2: What are the terms of packing?

A: Generally, we pack our goods in bundles or coils with rods or belts;we could also pack the goods according to the customers' requirements. Q3: Could you produce according to the samples? A: Yes, we can make customer-made products from your samples or technical drawings, and we can build the mold and fixtures.

Q4: How could you guarantee your products quality? A: Each piece of product is We could issue the warranty to the customer to guarantee the quality. Q5: What's your delivery time?

A: We offer flexible solutions: standard products are typically completed within one week, while special processing products generally take 7 to 15 days. Jiangyin Shenlong Electric Materials Co., Ltd.