Products › Power Resistors › Ceramic Tube Resistors
Ceramic Tube Resistors
- Low TCR & inductance
- Suitable for circuit current sensing
- High power, good heat dissipation
- Custom designs available
Applications: Frequency converters, charging stations, load banks, large ovens, welding machines, power equipment, burn-in equipment, and photovoltaic power generation
Dimensions & Specifications
| Rated power | G | A | J | E | D | K | Resistance | Tolerance |
|---|---|---|---|---|---|---|---|---|
| 100W | 170±5 | 28±1 | 68±3 | 9±1 | 4.5±1 | 6±1 | 4.8Ω ~ 6.8kΩ | ±5%; ±10% |
| 150W | 215±5 | 28±1 | 68±3 | 9±1 | 4.5±1 | 6±1 | 4.8Ω ~ 6.8kΩ | ±5%; ±10% |
| 200W | 267±5 | 28±1 | 68±3 | 9±1 | 4.5±1 | 6±1 | 4.8Ω ~ 6.8kΩ | ±5%; ±10% |
| 250W | 267±5 | 28±1 | 68±3 | 9±1 | 4.5±1 | 6±1 | 4.8Ω ~ 6.8kΩ | ±5%; ±10% |
| 300W | 267±5 | 40±1 | 90±3 | 10±1 | 4.5±1 | 6±1 | 4.8Ω ~ 6.8kΩ | ±5%; ±10% |
| 400W | 330±5 | 40±1 | 90±3 | 10±1 | 4.5±1 | 6±1 | 4.8Ω ~ 6.8kΩ | ±5%; ±10% |
| 500W | 330±5 | 50±1 | 98±3 | 10±1 | 6±1 | 8±1 | 4.8Ω ~ 6.8kΩ | ±5%; ±10% |
| 600W | 330±5 | 50±1 | 98±3 | 10±1 | 6±1 | 8±1 | 4.8Ω ~ 6.8kΩ | ±5%; ±10% |
| 700W | 400±5 | 50±1 | 95±3 | 10±1 | 4.5±1 | 8±1 | 4.8Ω ~ 6.8kΩ | ±5%; ±10% |
| 800W | 400±5 | 50±1 | 95±3 | 10±1 | 4.5±1 | 8±1 | 4.8Ω ~ 6.8kΩ | ±5%; ±10% |
| 1000W | 300±5 | 70±1 | 135±3 | 15±1 | 8±1 | 8±1 | 4.8Ω ~ 6.8kΩ | ±5%; ±10% |
| 1500W | 415±5 | 70±1 | 135±3 | 15±1 | 8±1 | 8±1 | 4.8Ω ~ 6.8kΩ | ±5%; ±10% |
| 2000W | 510±5 | 70±1 | 135±3 | 15±1 | 8±1 | 8±1 | 4.8Ω ~ 6.8kΩ | ±5%; ±10% |
| 2500W | 600±5 | 70±1 | 135±3 | 15±1 | 8±1 | 8±1 | 4.8Ω ~ 6.8kΩ | ±5%; ±10% |
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Dimensions in mm. Custom designs available.
If the rated voltage exceeds the maximum working voltage, use the maximum working voltage.
Electrical Characteristics
| Test item | Technical requirement | Test conditions |
|---|---|---|
| Initial resistance R and tolerance | 1Ω ≤ R: ±5% (J); 1Ω > R: ±10% (K) | |
| Temperature coefficient | ±200ppm/°C max. | |
| Rated load | |ΔR| ≤ (1% × R) + 0.05Ω; surface temperature rise 350°C max. | |
| Short-time overload | 10 × rating for 5 seconds; |ΔR| ≤ (2% × R) + 0.05Ω | |
| Insulation resistance | DC500V; 100MΩ min. | |
| Dielectric withstand voltage | AC1000V; 1 minute |
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Test standard: GB/T5729 (JIS5202)
Technical Details
Load Derating Curve
Y axis: Rated Power (%)
X axis: Ambient Temperature (°C)
Product Structure
- A: Mounting bracket
- B: Insulating ceramic ring
- C: Insulating coating
- D: Ceramic former
- E: Resistance wire
- F: Lead terminal
- G: Fastening nut
