RX20 2000W Adjustable Wire Wound Resistor with Porcelain Tube - ±350ppm/°C Temperature Coefficient, -55°C to +275°C Range
Price:
$7.5-$8.5
MOQ:
50
Delivery Time:
7-10 work days
Brand:
JIANHONG
Product Description
Product Overview
The RX20 2000W Adjustable Wire Wound Resistor features a high-performance porcelain tube construction with corrugated design for superior heat dissipation and operational stability in demanding industrial applications.
Key Features & Benefits
- 2000W High Power Capacity: Designed for heavy-duty applications with reliable full-load operation
- Corrugated Porcelain Tube Design: Increases heat dissipation area by 30-40% for enhanced thermal management
- Excellent Temperature Resistance: Stable performance in high-temperature environments up to 275°C
- High Reliability: Maintains stable resistance values with minimal drift over extended operation
- Multiple Resistance Values: Customizable specifications to meet various system requirements
- Easy Installation: Standard sizing with reliable terminal connections for quick setup
Technical Specifications
| Parameter | Specification |
|---|---|
| Rated Power | 2000W |
| Temperature Coefficient | ±350ppm/°C |
| Short Time Overload | 10x rated power or maximum load voltage |
| Operating Temperature Range | -55°C to +275°C |
| Resistance Value Stability | △R ≤ ±(1%+0.05Ω) after temperature cycling |
Performance Testing Results
| Test Project | Test Conditions | Performance |
|---|---|---|
| Temperature Coefficient | Resistance measured at room temperature and +100°C | ±350ppm/°C |
| Short Time Overload | 10x rated power or maximum load voltage | △R ≤ ±(2%+0.05Ω) |
| Resistance to Welding Heat | 350±10°C tin furnace for 2-3 seconds | △R ≤ ±(1%+0.05Ω) |
| Weldability | 260±5°C tin furnace for 2-3 seconds | Solder area covers over 95% |
| Temperature Cycle | -55°C to +275°C over 5 cycles | △R ≤ ±(1%+0.05Ω) |
| Load Life in Humidity | 40±2°C, 90-95% RH for 1000 hours | △R ≤ ±(5%+0.05Ω) |
| Load Life in Heat | 70±2°C for 1000 hours | △R ≤ ±(5%+0.05Ω) |
| Noncombustibility | 5x, 10x, 16x rated power for 5 minutes each | No obvious flames |
Short Time Rating Table
Maximum current load tolerance percentages for various time durations:
| Load Time (seconds) | 5 | 10 | 30 | 60 | 180 | 300 | 600 | 900 | 1800 |
|---|---|---|---|---|---|---|---|---|---|
| Maximum Current Tolerance (%) | 400 | 350 | 250 | 200 | 140 | 120 | 110 | 105 | 100 |
Application Areas
- Industrial Control & Automation: Frequency converters, motor speed regulation, load simulation
- Electronic Testing Equipment: Precision load or matching devices for performance testing
- Power Supply Systems: Energy dissipation devices for system stability
- Heavy-Duty Equipment: High-temperature and vibration-resistant applications
Product Image
Quality Assurance
Manufactured using high-quality ceramic substrates and precision copper wire winding to ensure long-term reliability and consistent electrical performance in demanding industrial environments.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shenzhen Jianhong Jitai Technology Co., Ltd.
Location
6th Floor, Building C, Pengyifa Science and Technology Park, Baihua Community, Guangming New District, Shenzhen, Guangdong Province，China
Contact Person
Golden Yu