Varnished Sterling Silver AgCu7.5 Enamelled Wire for Motor Coils - 250°C Thermal Rating, 92.5% Purity

Price Negotiable

Price: To negotiate

MOQ: 10kg

Delivery Time: 7-12 days

Brand: TANKII

Product Description

Product Overview

Varnished/Enamelled Wire made from Pure Sterling Silver AgCu7.5 alloy, specifically engineered for high-performance motor coil applications requiring superior electrical conductivity and thermal stability.

Material Specifications

Base Material: Pure 925 Sterling Silver (AgCu7.5 alloy)
Electrical Conductivity: Highest among all metals
Thermal Conductivity: Superior heat dissipation
Purity Standard: 92.5% silver content (925 fine)
Copper Content: 7.5% for enhanced mechanical properties

Technical Properties

Property	Specification
Material Composition	Pure 925 Sterling Silver, Brass/Copper/Bronze options
Logo/Stamp	Original 925 stamp or custom laser logo
Plating Options	Rhodium, Silver, K-Gold, Rose Gold, Black, etc.
Stone Options	Cubic Zirconia, Ruby, Spinel, Glass, Agate, Turquoise
Minimum Order Quantity	Silver Jewelry: 50pcs/design; Copper Jewelry: 100pcs/design

Insulation Performance

Polyimide insulated magnet wire operates at temperatures up to 250°C, with additional insulation options including high-temperature polyimide tape, fiberglass tape, and vacuum impregnation with insulating varnish for enhanced winding reliability.

Insulation Type	Thermal Level (°C)	Code Name	GB Code	ANSI Type
Polyurethane Enamelled Wire	130°C	UEW	QA	MW75C
Polyester Enamelled Wire	155°C	PEW	QZ	MW5C
Polyester-Imide Enamelled Wire	180°C	EIW	QZY	MW30C
Polyester-Imide & Polyamide-Imide Double Coated	200°C	EIWH (DFWF)	QZY/XY	MW35C
Polyamide-Imide Enamelled Wire	220°C	AIW	QXY	MW81C

Application Features

Self-supporting coils with thermoplastic bonding for structural integrity
Multiple insulation materials available: fiberglass yarn, aramid paper, kraft paper, mica, polyester film
Heat-strippable insulation options for simplified soldering connections
Ideal for transformers, reactors, and high-performance audio applications