These high-power, gold-plated aluminum-cased fixed resistors are manufactured using an anodized aluminum alloy housing and a fully welded process. The gold oxide coating not only enhances their aesthetics but also provides excellent corrosion resistance and thermal conductivity.
The molded seal effectively prevents moisture, vibration, and dust, ensuring stable operation in harsh environments. Designed for high-power applications, this series of resistors can be directly mounted on the housing or heatsink, significantly improving heat dissipation efficiency and extending product lifespan. They are widely used in industrial control, power electronics, and frequency conversion systems.

Technical Specifications
| Item | Parameter Description |
|---|---|
| Product Name | High-Power Gold-Finish Aluminum-Cased Fixed Resistor |
| Power Range | 10W ~ 1000W ( Customizable ) |
| Casing Material | Anodized Aluminum Alloy (Gold Surface Treatment) |
| Resistance Accuracy | ±1%, ±5% |
| Winding Structure | Non-Inductive Winding Design |
| Operating Temperature Range | -55℃ ~ +200℃ |
| Protection Performance | Moisture-proof, Dust-proof, Shockproof |
| Heat Dissipation Method | Enhanced heat dissipation mounted on the bottom of the casing |
Non-Inductive Winding Design —— 1. Effectively reduces parasitic inductance, ensuring stable performance in high-frequency and pulse circuits.
Excellent thermal conductivity: The aluminum shell structure and heat sink design enable rapid heat dissipation, enhancing load-bearing capacity.
Rugged and reliable structure: Utilizing a fully welded manufacturing process, it is shock-resistant and impact-resistant, adaptable to various industrial environments.
Superior protection performance: The molded package structure provides excellent moisture, dust, and oxidation resistance.
High long-term stability: Low resistance drift during long-term operation ensures system reliability.

High-power gold-plated aluminum-cased fixed resistors are widely used in: