Products › Power Resistors › Gold Aluminum Housed Resistors
Gold Aluminum Housed Resistors
- Compact, high power, easy to install
- Low TCR & inductance
- Suitable for circuit current sensing
- Good heat dissipation
- Customization on request
Applications: Frequency inverters, charging stations, load banks, large ovens, welding machines, power equipment, burn-in machines, and elevator braking
Dimensions & Specifications
| Rated power | A | B | C | D | E | F | G | H | I | J | Resistance range (Ω) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 5W | 25±1 | 15.3±1 | 11.3±1 | 16.5±1 | 8.5±0.2 | 8.2±0.2 | 2.2±1 | 1.6±0.2 | 2.4±0.3 | 2.2±0.2 | 1~5K |
| 10W | 29±1 | 19±1 | 14.3±1 | 20.4±1 | 10±0.2 | 10±0.2 | 5±1 | 2±0.2 | 2±0.3 | 2.2±0.2 | 1~10K |
| 25W | 53±1 | 27.5±1 | 18.6±1 | 27±1 | 14.9±0.2 | 14.9±0.2 | 6.5±1 | 2.2±0.2 | 3.2±0.3 | 2.2±0.2 | 1~25K |
| 50W | 70±1 | 51±1 | 39.2±1 | 29.2±1 | 16±0.2 | 16±0.2 | 7±1 | 2±0.2 | 3.2±0.3 | 2.2±0.2 | 1~50K |
| 100W | 122±1 | 90±1 | 70±1 | 72±1 | 16.5±0.2 | 16.5±0.2 | 20±1 | 5±0.2 | 5.2±0.3 | M5×25 | 1~100K |
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Unit: mm
If the rated voltage exceeds the maximum working voltage, use the maximum working voltage.
Electrical Characteristics
| Test item | Technical requirement |
|---|---|
| Initial resistance R and tolerance | ≤1Ω: ±5%; >1Ω: ±1%, ±2%, ±5% |
| Temperature coefficient | R < 0.05Ω: ±200ppm/°C; 0.05Ω ≤ R < 0.1Ω: ±100ppm/°C; 0.1Ω ≤ R < 400Ω: ±50ppm/°C; 400Ω ≤ R: ±30ppm/°C |
| Rated load | |ΔR| ≤ (1% × R) + 0.05Ω |
| Short-time overload | 5 times rated power for 5 seconds; |ΔR| ≤ (0.5% × R) + 0.05Ω |
| Insulation resistance | DC500V; 100MΩ min. |
| Dielectric withstand voltage | |ΔR| ≤ (0.2% × R) + 0.05Ω; <50W: AC1000V, 1 minute; ≥50W: AC2000V, 1 minute |
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Technical Details
Load Derating Curve
Y axis: Rated Power (%)
X axis: Ambient Temperature (°C)
Surface Temperature Rise Curve
Y axis: Temperature (°C)
X axis: Load (%)
Red: ≥50W Brown: ≤25W
Product Structure
- A: Terminal
- B: Resistor core
- C: Filling material
- D: Gold aluminum housing
