Design Features

Wire-wound resistors (also known as ceramic wire rods) are high-performance electronic components designed specifically for resistive 

elements and electronic manufacturing.

High Electrical Insulation

These alumina ceramic rods possess excellent electrical insulation properties, with a breakdown strength exceeding 10 KV/mm, 

ensuring safe use in high-voltage environments.

Excellent Thermal Stability and Mechanical Strength

With high thermal conductivity (27.5 W/(m.K)) and a low coefficient of thermal expansion (7.6 x 10⁻⁶/℃), they maintain dimensional 

stability under high-temperature operating conditions, while also exhibiting high compressive strength (2000 MPa) and flexural strength 

(330 MPa).

Abrasion Resistance and Durability

A Vickers hardness of 15.7 Gpa (1600 Kg/mm²) enables these rods to resist wear and deformation during long-term use.

Fine-Toothed Surface Design

This design helps to fix the resistance wire, allowing it to be wound evenly around the rod, providing a uniform resistance value and 

improving current distribution.

Application areas

Resistor Element Manufacturing

Used in resistor manufacturing to wind resistance wire, ensuring wire stability and consistent electrical performance.

Electronic Devices

Suitable for various electronic devices requiring high electrical insulation and thermal stability, such as transformers, induction cookers, 

and other electric heating equipment.

High-Temperature Testing and Experimentation

Due to their high-temperature stability and electrical insulation, these ceramic rods can be used for high-temperature testing and 

experimentation in laboratories.

Aerospace and Automotive Industries

Used in high-temperature electronic systems in these industries to maintain stable electrical performance and manage thermal performance.

Wire-wound alumina ceramic resistance rods play a crucial role in electronics manufacturing and resistor production due to their excellent 

electrical insulation, high-temperature stability, and mechanical strength. These rods are designed to optimize resistor performance, ensuring reliable operation of electronic devices under high voltage and high temperature environments, making them indispensable components 

in modern electronics technology and the manufacture of high-performance resistors.

In the field of precision ceramic machining and customization, our company is committed to producing various high-performance ceramic 

components, including zirconia ceramics, silicon nitride, and aluminum nitride. These ceramic components possess excellent thermal stability, electrical insulation, high-temperature stability, and wear resistance, and are widely used in key fields such as aerospace, electronics, 

machinery, military, and automotive. Our products, with their superior performance and reliability, provide crucial support and assurance to 

our customers, helping them improve production efficiency and optimize product performance.