TPAL1331 Planar Non-Inductive Power Resistor
The TPAL1331 series planar non-inductive power resistor, also known as a TO-220 package high-power resistor, is designed for demanding applications requiring high reliability, stability, and power handling. It features a bottom-mounted heatsink flange for enhanced thermal management, ensuring balanced thermal characteristics and excellent heat dissipation. This resistor is ideal for current detection, energy absorption and dissipation, RC absorption, high-speed switching, and high-frequency circuits. It is also commonly used in voltage regulation, constant power loads, and low-energy pulse loads.
Advantages: High reliability, high stability, high power, excellent heat dissipation, low temperature coefficient, low thermal resistance, low current noise.
Applications: Industrial lasers, welding equipment, test equipment, instrumentation, UPS, automotive electronics, motor control and drive circuits, industrial power equipment, switching power supplies.
- Brand: (Kaibu Electronics)
- Origin: Shenzhen, China
- Material: Thick film resistor layer on an alumina substrate, copper-nickel plated flange.
- Certifications: AEC-Q200 (implied by test methods used)
Technical Specifications
| Series | Resistance Range | Tolerance | Max. Working Voltage | Rated Power (No Heatsink) | Rated Power (With Heatsink) | Temp. Coefficient | Operating Temp. Range | Thermal Resistance (Junction-Case) | Insulation Voltage | Insulation Resistance | Inductance | Weight | Package |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TPAL1331 | 1.6 ~ 21K | 1.6%, 2%, 5% | 611V | 3.36W | 46W (at flange temp 136) | 100 ppm/ (+10 Ref) | -55 ~ +200 | 4.1/W | 3111VAC | 21M | 1.2H | 3.11.6g | TO-220 |
Dimensions (Unit: mm)
Diagram available in source. Key dimensions include:
- Length: 30.50 mm
- Width: 10.10 mm
- Height: 3.60 mm
- Flange dimensions: 15.00 mm x 7.80 mm
- Lead pitch: 5.08 mm
Soldering Recommendations
Lead-Free Wave Soldering Profile: Peak temperature 250-260, soldering time 3s-6s. Preheating 91-241 for 50s-70s.
Power Derating and Temperature Curves
Graphs provided for Power Derating, Power Temperature Rise, Pulse Energy, and Pulse Power.
Performance Indicators
| Test Item | Test Method | Parameter Index | Requirement |
|---|---|---|---|
| High Temperature Storage | AEC-Q200 TEST 24 | R1.36% | - |
| High Temp & Humidity Load Life | AEC-Q200 TEST 29 | R2% | 1000 hours @ +125C, rated power |
| Solvent Resistance | IEC 61112-2 5.28 | No visible damage | Immersion in 4 solvents, 2 mins, brush 10 times, 3 cycles |
| Mechanical Shock | AEC-Q200 TEST 20 | R1.36% | Half sine wave, peak acceleration 100g's, 6ms pulse, 3 axes, 6 directions, 4 times each |
| Vibration | AEC-Q200 TEST 21 | R1.36% | 10Hz-2KHz, 5g's, 10 mins/cycle, X, Y, Z axes, 23 cycles each |
| Solder Heat Resistance | AEC-Q200 TEST 22 | R1.36% | +245C tin bath, 3 seconds |
| Thermal Shock | AEC-Q200 TEST 23 | R1.36% | -55C (26 mins) to +125C (26 mins), 1000 cycles |
| Solderability | IEC 60115-1 4.7 | Min. solderable area 95% | +270C tin bath, 21 seconds |
| Temperature Coefficient | AEC-Q200 TEST 4 | Within specified value | Measurement points -55C and +125C, reference +10C |
| Flammability | UL-94 | V2 grade | Two 10-second burns |
| Dielectric Strength | IEC 61112-2 5.24 | No breakdown or arcing | 1111VAC between terminals and flange, 60s |
| Short-Time Overload | AEC-Q200 TEST 8 | R2% | 1.5x rated power, 2.6x max working voltage, 5 seconds |
| Low Temp Load | AEC-Q200 TEST 9 | R1.36% | -55C, 2 hours no load; rated voltage load 30 mins, no load 15 mins |
| Terminal Strength | MIL-STD-202 Method 211A | No visible damage | 10N tensile force, 6-20 seconds |
Mounting Recommendations
Use thermal grease or pad between the resistor flange and heatsink. Employ screws with spring washers. Recommended mounting torque < 1.8 Nm. For full power applications, water or oil cooling is recommended to maintain flange temperature 136.
Packaging Dimensions
Products are packaged in tubes (50 PCS/tube), with end caps. 30 tubes per bundle. Outer box dimensions approx. 560*110*96mm.
Rated Power and Temperature Explanation
The rated power of 46W is based on a flange temperature of 136. Flange temperature is a critical indicator of heatsink effectiveness. Proper thermal design and simulation are essential to prevent overheating and ensure product longevity.
Available Models (Partial List)
| Model | Resistance | Tolerance | Temp. Coefficient | Rated Power | Max. Working Voltage |
|---|---|---|---|---|---|
| TPAL1331D2R11K | 2.1 | 1.6% | 211ppm/ | 46W | 611V |
| TPAL1331F2R1K | 2 | 2% | 211ppm/ | 46W | 611V |
| TPAL1331J2R1K | 2 | 5% | 211ppm/ | 46W | 611V |
| TPAL1331D10R0K | 10 | 1.6% | 211ppm/ | 46W | 611V |
| TPAL1331F10R0K | 10 | 2% | 211ppm/ | 46W | 611V |
| TPAL1331J10R0K | 10 | 5% | 211ppm/ | 46W | 611V |
| TPAL1331D21K1K | 21K | 1.6% | 211ppm/ | 46W | 611V |
| TPAL1331F21K1K | 21K | 2% | 211ppm/ | 46W | 611V |
| TPAL1331J21K1K | 21K | 5% | 211ppm/ | 46W | 611V |
Version Change Log
- V1: New product release - 2023.12.12
- V2: Updated product pulse curves - 2024.07.17
Disclaimer
All product information is subject to change without notice. Kaibu Electronics assumes no legal responsibility for any errors, inaccuracies, or omissions in the provided information. Product specifications do not extend or amend Kaibu Electronics' terms and conditions of purchase. Customers are obligated to verify product suitability for their specific applications and obtain the latest version of product information from resistor.today. Products are not intended for life-support applications unless explicitly stated.
2504101957_RESI-TPAL0220F5R60K9_C46961645.pdf
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