Dimensions
Dimensions (mm)| Model | Power (W) | Resistance Range (Ω) | Resistance Tolerance (%) | L | L1 | L2 | D | W | H |
|---|---|---|---|---|---|---|---|---|---|
| RXLB | 40W | 1-100 | ±5(J) / ±10(K) | 100 | 200 | 75 | 85 | 40 | 8 |
| RXLB | 60W | 1-100 | ±5(J) / ±10(K) | 100 | 200 | 75 | 85 | 40 | 8 |
| RXLB | 80W | 1-100 | ±5(J) / ±10(K) | 100 | 200 | 75 | 85 | 45 | 8 |
| RXLB | 100W | 1-100 | ±5(J) / ±10(K) | 100 | 200 | 75 | 85 | 40 | 8 |
| RXLB | 120W | 1-100 | ±5(J) / ±10(K) | 120 | 200 | 98 | 108 | 45 | 8 |
| RXLB | 150W | 1-100 | ±5(J) / ±10(K) | 120 | 200 | 103 | 110 | 40 | 5.8 |
| RXLB | 200W | 1-100 | ±5(J) / ±10(K) | 185 | 200 | 168 | 175 | 45 | 8 |
Rated Power Derating Curve
Rated Power Derating CurveElectrical Characteristics
Testing Method & Condition| Test Item | Test Condition | Performance |
|---|---|---|
| TCR Temperature Coefficient | Measure resistance at room temperature and at room temperature +100°C, then calculate resistance change per °C | ±300 ppm/℃ |
| Short Time Overload | Apply voltage corresponding to 10× rated power (√10PR) or maximum operating voltage (whichever is lower) for 5 seconds | ΔR ≤ ±(2%R0+0.05Ω) |
| Resistance to Soldering Heat | Dip in solder bath at 350±10°C for 2~3 seconds | ΔR ≤ ±(1%R0+0.05Ω) |
| Solderability | Dip in solder bath at 260±5°C for 2~3 seconds | Solder coverage ≥95% |
| Temperature Cycling | 30 min at -55°C → 10~15 min at +25°C → 30 min at +275°C, 5 cycles | ΔR ≤ ±(1%R0+0.05Ω) |
| Load Life in Humidity | 40±2°C and 90~95% RH chamber; apply rated or maximum operating voltage for 1000h (1.5h ON / 0.5h OFF) | ΔR ≤ ±(5%R0+0.05Ω) |
| Load Life in Heat | 70±2°C chamber; apply rated or maximum operating voltage for 1000h (1.5h ON / 0.5h OFF) | ΔR ≤ ±(5%R0+0.05Ω) |
| terminal Strength | Pull: 10N | ΔR ≤ ±(2%R0+0.1Ω) |
| Vibration | Frequency 10~55Hz, amplitude 0.75mm, 6 hours | ΔR ≤ ±(2%R0+0.1Ω) |
| Nonflammability | Apply 5×, 10×, 16× rated power AC load for 5 minutes | No visible flame |
Slim‑Profile High‑Power Aluminum Housed Resistor
Slim profile, ample power — anodized aluminum‑alloy enclosure
This slim‑profile aluminum housed power resistor is developed and manufactured by Guangdong Qingda Electronic Technology Co., Ltd. Built with premium anodized aluminum‑alloy enclosure, it achieves high power performance within a thin, low‑profile package, solving installation challenges for compact cabinets and space‑constrained industrial devices.
High‑temperature resistance wire and inorganic insulating filler are adopted internally. The anodized aluminum alloy shell optimizes heat dissipation efficiency and improves corrosion resistance. Even under continuous heavy‑load operation or short‑term pulse overload, the resistor maintains stable resistance value with low temperature drift. Pre‑set mounting holes enable fast, reliable assembly onto equipment chassis.
Key Features
- Slim low‑profile construction, saves cabinet installation space
- Ample power output in compact size
- Durable anodized aluminum‑alloy enclosure for corrosion resistance
- Excellent thermal dissipation performance
- Strong instantaneous overload and surge withstand capability
- High mechanical strength, shock‑proof and vibration‑resistant
- Dust‑proof and moisture‑proof, suitable for harsh industrial environments
- Low temperature drift, long service life
- Convenient mounting structure
- Custom resistance value, power rating and outline dimensions supported
Applications
Inverter braking systems, servo motor energy discharge, elevator control units, new‑energy equipment, battery discharge testing, compact industrial cabinets, power load testing, automation equipment with limited installation space.