0.04mm Copper Magnet Wire For Motor Hearing Aid Voice Coils

MOQ： 5kg
Price： Negotiation
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Payment Terms	Negotiation
Supply Ability	10Ton/week
Delivery Time	2-15 days
Packaging Details	Carton
Product Name	0.04mm Copper Magnet Wire For Motor Hearing Aid Voice Coils
Thermal rating	155
Insulation Material	Polyurethane
Diameter	0.04mm
Conductor material	Copper
Brand Name	Ruiyuan
Model Number	0.04mm
Certification	UL/ISO9001/ISO14001/RoHS/Reach
Place of Origin	China

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Product Specification


Payment Terms	Negotiation	Supply Ability	10Ton/week
Delivery Time	2-15 days	Packaging Details	Carton
Product Name	0.04mm Copper Magnet Wire For Motor Hearing Aid Voice Coils	Thermal rating	155
Insulation Material	Polyurethane	Diameter	0.04mm
Conductor material	Copper	Brand Name	Ruiyuan
Model Number	0.04mm	Certification	UL/ISO9001/ISO14001/RoHS/Reach
Place of Origin	China
High Light	0.04mm copper magnet wire ，enamelled copper wire for motors ，magnet wire for hearing aid coils

0.04mm Copper Magnet Wire For Motor Hearing Aid Voice Coils

Diameter Subdivision and Typical Application Examples

0.02mm – 0.04mm (20μm – 40μm): The finest level. Commonly used in top-tier hearing aid voice coils, probes for certain miniature medical implants, and ultra-high-density research coils. Extremely difficult to handle, requiring specialized winding equipment.

0.05mm – 0.07mm (50μm – 70μm): Mainstream ultra-fine wire range. Widely used in high-end TWS earphone voice coils, miniature inductors, and miniature RF transformers. One of the most critical materials for miniaturization in consumer electronics. 0.08mm –

0.09mm (80μm – 90μm): Relatively "thick" fine wire. Used for small speaker voice coils, slightly larger power inductors, small relays, etc., striking a balance between performance and winding efficiency.

Test Items	Requirements		Test Data
Test Items	Requirements		1^st Sample	2^nd Sample	3^rd Sample
Appearance	Smooth & Clean		OK	OK	OK
Conductor Diameter	0.040mm ±	0.001mm	0.0400	0.0400	0.0400
Thickness of Insulation	≥ 0.006 mm		0.0090	0.0100	0.0090
Overall Diameter	≤ 0.052 mm		0.0490	0.0500	0.0490
DC Resistance	≤ 14.433 Ω/m		13.799	13.793	13.785
Elongation	≥ 11%		18	20	19
Breakdown Voltage	≥325 V		989	1302	1176
Pin Hole	≤ 5 faults/5m		0	0	0
Adherence	No cracks visible		OK	OK	OK
Cut-through	230℃ 2min No breakdown		OK	OK	OK
Heat Shock	200±5℃/30min No cracks		OK	OK	OK
Solderability	390± 5℃ 2 Sec No slags		OK	OK	OK

Company Details

Bronze Gleitlager

Bronze Sleeve Bushings

and

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from Quality China Factory

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Business Type:

Manufacturer,Distributor/Wholesaler,Trading Company 


Year Established:

2002 


Total Annual:

2Mllion-3Million


Employee Number:

>100以上 


Ecer Certification：

Verified Supplier 

Tianjin Ruiyuan Electric Material Co,.Ltd (Ruiyuan) was established in 2002, in the past 24years, we have been committed to "Precision Engineering for Complex Wire Solutions." This dedication has driven us to expand our product range from fine enameled copper wires to include litz wire, ... Tianjin Ruiyuan Electric Material Co,.Ltd (Ruiyuan) was established in 2002, in the past 24years, we have been committed to "Precision Engineering for Complex Wire Solutions." This dedication has driven us to expand our product range from fine enameled copper wires to include litz wire, ...

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Tianjin Ruiyuan Electric Material Co,.Ltd
22-2, Jinlian Business Park, Crossing Of Xinjiayuan Road And Lishuang Road, Jinnan Dist.
https://www.ultrafinecopperwire.com/

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