Power resistor RESI TPAL0220F4R70K9 planar non inductive type TO 220 package

Product Specification

TPAL1331 Planar Non-Inductive Power Resistor

The TPAL1331 is a planar non-inductive power resistor, also known as a TO-220 package high-power resistor. It features a bottom-mounted heatsink flange for enhanced heat dissipation, ensuring balanced thermal characteristics and excellent cooling. This resistor is designed for applications such as current detection, energy absorption and discharge, 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. The TPAL1331 series offers high reliability, stability, and power handling capabilities.

Product Advantages

• Planar Non-Inductive Power Resistor
• TO-220 package with integrated flange for improved heat dissipation
• High reliability, high stability, high power
• Excellent long-term stability, low temperature coefficient, high heat dissipation, low thermal resistance, and low current noise
• Self-controlled production from raw materials to core processes ensures stable quality and timely delivery.

Applications

• Industrial laser equipment
• Welding equipment
• Test equipment
• Instrumentation
• UPS
• Automotive electronics
• Switching power supplies
• Motor control and drive circuits

Product Attributes

• Brand: CBE ()
• Origin: Shenzhen, China
• Material: Thick film, Alumina substrate, Copper with nickel plating flange
• Certifications: AEC-Q200 (implied by performance tests)

Technical Specifications

Dimensions (Unit: mm)

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Marking Description

The product marking consists of: Brand Logo + Product Series Specification + Tolerance Code + Resistance Code + Temperature Coefficient Code.

Example Marking: RESI TPAL0220 F 10R0 K

Soldering Recommendation

Lead-free Wave Soldering Recommended Curve:

• Preheating: 150C ~ 241C, 51s ~ 71s
• Peak Temperature: 250C ~ 260C (Max)
• Soldering Time: 3s ~ 6s

Derating Curve

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Power Derating Curve

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Pulse Energy Curve

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Pulse Power Curve

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Performance Indicators

Mounting Recommendations

• Apply thermal grease or a thermal pad between the resistor flange and the heatsink.
• Use screws with spring washers for the flange connection to prevent loosening.
• Recommended mounting torque: < 1.8 Nm.
• For full power applications, use water or oil cooling to maintain flange temperature 100C.

Packaging Dimensions

• 50 pieces per tube.
• Tube ends sealed with tape.
• 30 tubes per bundle.
• Outer box dimensions: approx. 560*110*96mm.

Explanation of Rated Power and Temperature

The maximum rated power of 46W for the TPAL1331 series is based on a flange temperature of 100C. Flange temperature is a critical indicator of heatsink performance. If the flange temperature is too high, it suggests inadequate heatsink performance, which can lead to resistance value drift and reduced lifespan. Proper thermal design, calculation, and measurement are recommended to ensure reliability.

Heatsink Selection

Users must select an appropriate heatsink based on operating conditions (power, ambient temperature, etc.). The maximum operating temperature for the TPAL1331 series is 260C. The power calculation formula is: P = (Tj - Ta) / (Rth(j-c) + Rth(c-h) + Rth(h-a)).

Standard Models

Version Change Log

Disclaimer

All product information is subject to change without notice. Shenzhen KaiBu Electronics Co., Ltd. assumes no legal liability for any errors, inaccuracies, or omissions in the provided information. Product descriptions do not extend or amend KaiBu Electronics' terms and conditions of purchase, including warranties. KaiBu Electronics makes no warranties, representations, or guarantees except as expressly stated in the terms and conditions of purchase. To the maximum extent permitted by applicable law, KaiBu Electronics disclaims all liability for product use, including special, indirect, or incidental damages, and all implied warranties of fitness for a particular purpose, non-infringement, and merchantability. Information provided in datasheets and parameter tables may vary in different applications, and product performance may change over time. Recommended applications are based on KaiBu Electronics' understanding and experience of typical requirements. Customers are obligated to verify product suitability for their specific applications using the parameters provided in the datasheet. Ensure you have the latest version of the information, available on resistor.today. The signing of this agreement does not constitute any express, implied, or other form of license related to KaiBu Electronics' intellectual property. Unless expressly stated otherwise, products listed are not intended for life-saving or life-sustaining applications. Customers assume all risks associated with the unauthorized use of such products and agree to fully indemnify KaiBu Electronics for any losses arising from such sales or use. For product terms for special applications, please contact an authorized KaiBu Electronics representative. Product names and markings may be trademarks of others.