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We offer a comprehensive portfolio including resistors, braking units, reactors, power filters, and transformers, with full customization options to meet diverse application requirements.
Designed for industrial and electronic power control systems, the DUFEW Gold Aluminum Clad Resistor combines high electrical stability with excellent environmental protection. Compared with conventional open wirewound resistors, its fully enclosed aluminum housing protects the resistance element from dust, moisture, oil contamination, and accidental mechanical damage, ensuring consistent performance and a longer service life in demanding operating environments.
The resistor element is precision-wound using Nickel-Chromium (Ni-Cr) or Copper-Nickel (Cu-Ni) resistance wire on a high-alumina ceramic core according to the required resistance value. High-insulation flame-retardant encapsulation materials permanently bond the resistor element to the aluminum housing, creating a compact structure with excellent mechanical strength and thermal conductivity.
The housing is manufactured from premium aluminum alloy with a durable gold anodized finish, providing outstanding resistance to oxidation, corrosion, and surface wear. Multiple terminal configurations - including screw terminals, solder lugs, and high-temperature lead wires - allow easy integration into different industrial and electronic systems.
Unlike conventional open-frame wirewound resistors, DUFEW aluminum clad resistors feature a fully enclosed aluminum housing structure that protects the internal resistance element from dust, moisture, oil contamination, vibration, and accidental mechanical impact.
The gold anodized aluminum shell not only improves corrosion resistance but also enhances product durability and appearance, making it ideal for demanding industrial environments.
| Feature | Engineering Benefit |
|---|---|
| Gold anodized aluminum housing | Provides superior oxidation and corrosion resistance compared with untreated metal housings |
| Fully enclosed construction | Protects the resistor element from dust, moisture, oil, and external damage |
| High alumina ceramic core | Ensures excellent insulation performance and thermal stability |
| Precision Ni-Cr / Cu-Ni alloy wire winding | Provides accurate resistance values and stable electrical performance |
| Flat mounting base design | Improves heat transfer to chassis or heat sink |
| Multiple terminal options | Simplifies installation for different equipment designs |
| OEM customization capability | Supports non-standard resistance, power, size, and terminal requirements |
The resistance element uses high-quality Nickel-Chromium (Ni-Cr) or Copper-Nickel (Cu-Ni) alloy wire, precisely wound on a high-alumina ceramic core according to the required resistance value. This structure ensures stable electrical performance, low temperature coefficient, strong overload capability, and long service life under demanding operating conditions.
The aluminum alloy housing is designed with optimized thickness and thermal structure. After gold anodizing treatment, the surface forms a protective oxide layer that improves corrosion resistance, surface hardness, electrical insulation, and long-term durability.
The resistance element is securely encapsulated with high-insulation flame-retardant materials through electronic molding or silicone copper molding technology. The sealed structure enhances mechanical strength, vibration resistance, environmental protection, and reliability in industrial applications.
| Parameter | Specification |
|---|---|
| Product Type | Gold Aluminum Clad Resistor |
| Resistance Technology | Precision Wirewound Resistor |
| Power Rating | 5W -- 1000W |
| Resistance Range | 0.01Ω -- 100kΩ |
| Resistance Tolerance | ±1%, ±3%, ±5%, ±10% |
| Resistance Wire Material | Nickel-Chromium (Ni-Cr), Copper-Nickel (Cu-Ni) |
| Core Material | High Alumina Ceramic |
| Housing Material | Aluminum Alloy |
| Surface Treatment | Gold Anodized Finish |
| Insulation Resistance | ≥100MΩ |
| Dielectric Strength | 2500VAC / 60s |
| Temperature Coefficient | ≤300 ppm/℃ |
| Protection Grade | IP00 |
| Flame Rating | UL94V-2 |
| Customization | Resistance, Power, Size, Terminal, Color |
The compact aluminum housing minimizes installation space, making it suitable for compact servo drives, switching power supplies, portable instruments, and densely populated control cabinets.
The anodized surface forms a durable protective layer that improves corrosion resistance, prevents oxidation, and maintains an attractive appearance even after long-term industrial operation.
The smooth flat base provides maximum contact with metal mounting plates or heat sinks for improved thermal transfer while simplifying installation.
The sealed housing protects the resistance element from dust, oil contamination, and accidental contact, improving operational reliability in industrial environments.
The gold anodized finish is not only decorative but also significantly improves corrosion resistance, electrical insulation, and long-term durability, making the resistor suitable for industrial equipment operating in humid or contaminated environments.
| Feature | Benefit |
|---|---|
| Gold anodized aluminum housing | Improves corrosion and oxidation resistance |
| Dense oxide protective layer | Extends service life in humid and industrial environments |
| Low-contact-resistance terminals | Provides stable long-term electrical connections |
| Wear-resistant surface finish | Maintains product appearance and simplifies maintenance |
| Application | Usage |
|---|---|
| Servo Drives | Dynamic braking and energy absorption |
| Variable Frequency Drives | Brake resistor applications |
| Power Supplies | Load simulation and voltage regulation |
| Automotive Electronics | Current limiting and power control |
| Renewable Energy Systems | Energy discharge and protection |
| Testing Equipment | Burn-in testing and load banks |
| Elevators & Cranes | Motor braking control |
| Industrial Automation | Protection circuits and power control |
| Audio Equipment | Amplifier and frequency divider circuits |
| Comparison | DUFEW Gold Aluminum Clad Resistor | Conventional Open Resistor |
|---|---|---|
| Housing Protection | Fully enclosed aluminum housing | Open structure with exposed components |
| Corrosion Resistance | Gold anodized protective layer | Limited surface protection |
| Heat Dissipation | Direct aluminum thermal conduction | Lower thermal efficiency |
| Installation Space | Compact design for dense equipment | Larger installation footprint |
| Environmental Protection | Resistant to dust, moisture, and oil contamination | More sensitive to harsh environments |
| Customization | OEM/ODM supported | Limited modification options |
DUFEW provides OEM and ODM manufacturing services, including:
- Custom resistance values
- Custom power ratings
- Lead wire or terminal configurations
- Housing dimensions
- Mounting styles
- Non-inductive versions
- Special anodized colors
No. "Gold" refers to the gold anodized surface treatment applied to the aluminum housing. It improves corrosion resistance, surface durability, and product appearance.
Yes. The aluminum housing provides efficient heat dissipation. However, actual power loading should be selected according to installation conditions, ventilation, and operating temperature.
Yes. DUFEW supports customized solutions including resistance value, rated power, dimensions, terminals, lead wires, and special electrical requirements.
They are widely used in industrial automation, motor control, renewable energy, automotive electronics, power supplies, testing equipment, and electrical control systems.
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No. 364, Kangyang Road, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province, China
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