RXLG Trapezoidal Aluminum-Housed Resistor
RXLG Trapezoidal Aluminum Housed Resistor
High insulation · High-temperature resistant · Moisture resistant
Power Range
40W ~ 500W
Resistance Range
0.1Ω ~ 100KΩ
Tolerance
±1% / ±2% / ±5%
EnclosureProcess
Trapezoidal extruded aluminum enclosure
Operating Temperature
-55℃ ~ +275℃
Applications
VFD braking · Servo drives · Industrial energy dissipation
✅ Factory direct✅ Free samples in 48h✅ Custom to drawing✅ 12-month warranty
Product Highlight
Factory Direct · RXLG Trapezoidal Aluminum Housed
High insulation · High-temperature resistant · Moisture resistant
Stable Performance
Wound metal alloy wire — low TCR, high tolerance
Carefully selected alloy wire is wound uniformly with consistent resistance values; the the same form factor handles larger surge power with low TCR, high tolerance, and minimal long-term drift.
Enhanced Thermal Dissipation
Airflow channel design enhances thermal dissipation
Specially-formed airflow channels guide hot air along the grooves, rapidly dissipating heat.
Dimensions
Dimensions (mm)
| Part No. | Power | Resistance Range | L1±1 | L2±1 | L3±1 | L4±10 | H±1 | W±1 | W1±0.5 | d±0.2 |
|---|---|---|---|---|---|---|---|---|---|---|
| TRX40B | 40W | 0R1~7K | 75 | 90 | 100 | 200 | 18 | 30 | 5.6 | 2.51 |
| TRX60B | 60W | 0R1~9K | 84 | 98 | 115 | 200 | 18 | 30 | 5.6 | 2.51 |
| TRX80B | 80W | 0R1~22K | 109 | 123 | 140 | 200 | 20 | 40 | 5.6 | 3.44 |
| TRX100 | 100W | 0R1~31K | 134 | 148 | 165 | 200 | 20 | 40 | 5.6 | 3.44 |
| TRX120 | 120W | 0R1~34K | 155 | 170 | 185 | 200 | 20 | 40 | 5.6 | 3.44 |
| TRX150 | 150W | 0R1~40K | 184 | 198 | 215 | 200 | 20 | 40 | 5.6 | 3.44 |
| TRX200 | 200W | 0R1~46K | 119 | 147 | 165 | 300 | 30 | 60 | 5.6 | 3.44 |
| TRX250 | 250W | 0R1~46K | 119 | 147 | 165 | 300 | 30 | 60 | 5.6 | 3.44 |
| TRX300 | 300W | 0R1~72K | 184 | 212 | 230 | 300 | 30 | 60 | 5.6 | 3.44 |
| TRX350 | 350W | 0R1~72K | 184 | 212 | 230 | 300 | 30 | 60 | 5.6 | 3.44 |
| TRX400 | 400W | 0R1~79K | 219 | 247 | 265 | 300 | 30 | 60 | 5.6 | 3.44 |
| TRX500 | 500W | 0R1~100K | 289 | 317 | 335 | 300 | 30 | 60 | 5.6 | 3.44 |
Rated Power Derating Curve
Rated Power Derating Curve
Electrical 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 |
Trusted Manufacturer · Four Key Advantages
⚡
48-Hour Free Samples
Free samples for standard parts — shipped within 2 business days.
🛠️
Custom to Drawing
Drawing- and spec-based customization. Engineer responds within 24 hours.
$
Volume Discounts
Factory-direct supply at scale — direct manufacturer pricing.
🤝
Worry-Free After-Sales
12-month warranty with a dedicated team for technical issues.
Customization Process
Made-to-Ordertailored to your needs
Contact Us
Reach out, learn about our products, share your needs
Specify Requirements
Discuss specifications with our team
Get a Quote
We send pricing and proposal
Place Order
Confirm order and payment
Production
Manufacturing and quality inspection
Ship
Pack and ship the goods
Delivery
Confirm receipt and feedback
Related Products
Other products in the Aluminum Housed Resistors series
View all Aluminum Housed Resistors →
Frequently asked questions
Is a free sample available for this product?
Yes — free samples in reasonable quantities for engineering evaluation, shipped within 2–3 business days. Submit the request via the inquiry form on this page or click 'Request Sample' above. We typically include 5–10 pieces and a printed datasheet.
What is the minimum order quantity?
Standard MOQ is 1,000 pieces. For higher-power product families (resistor cabinets, large aluminum-housed units) MOQ may be lower or per-order. Annual contract pricing available for forecasted volumes — tell us your projected annual usage during the quote stage.
How long is the warranty?
12-month standard warranty from date of shipment, covering defects in materials and workmanship under specified operating conditions (within rated power, ambient ≤70°C, mounting per datasheet). Custom and high-reliability variants can have extended warranty terms specified in the contract.
What payment terms do you accept?
T/T (wire transfer) is most common: 30% advance, 70% before shipment for new customers; net 30 / net 60 for established customers. Letter of Credit (L/C at sight or with usance) accepted for orders >$50,000 USD. PayPal accepted for sample-only orders under $1,000.
Can I order this product in custom dimensions or values?
Yes. Custom resistance values within the platform's range carry no extra cost (just specify in the order). Custom dimensions, mounting holes, terminations or non-standard packages may incur a one-time tooling fee (typically waived for orders >5,000 pieces). See the Customization page or submit drawings via the inquiry form.
How do I get a datasheet or 3D model?
Email info@resistor-factory.cn with the part number — we send PDF datasheet (English) and STEP/IGES 3D model where available, typically within 1 business day. Free, no NDA required for standard products. For custom variants, the model is delivered after the design review meeting.
Sample Request
Sample Request
Standard samples are provided free of charge in reasonable quantities (shipped within 2–3 business days). Custom samples are delivered within 2–4 weeks. Please use the form on the right to tell us:
- Company and contact details
- Target part number or key specs (power / resistance / package)
- Application scenario and estimated annual volume
- Shipping address and expected delivery date
📧 You can also email us directly at info@resistor-factory.cn / 13650089870
Inquiry