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Wire-wound Resistors RHA

Product catalog summary

Overview: The document provides technical specifications and performance details for RHA Aluminum Housed Power Resistors manufactured by Shenzhen KWX Electronics Co., Ltd. These resistors are designed for high power applications and are suitable for rugged environments.

Specifications:

Material: Aluminum housing for effective heat dissipation.
Power Ratings: Available from 5W to 1000W.
Resistance Range: 0.1Ω to 100KΩ with tolerance options of ±1%, ±2%, ±5%, and ±10%.
Temperature Coefficient of Resistance (T.C.R): Options include ±20PPM/℃, ±50PPM/℃, and ±100PPM/℃.
Dimensions: Detailed dimensions provided for various power ratings, including thickness and surface area.

Performance and Standards:

Reference Standards: JISC 5201-1.
Temperature Coefficients: Performance requirements include ±20PPM/℃, ±50PPM/℃, and ±100PPM/℃.
Load Life: Tested at 25℃ for 1000 hours with specific resistance change limits.
Insulation Resistance: Minimum 1000MΩ.
Short Time Overload: Resistance change within specified limits after overload conditions.
Vibration and Shock Resistance: Tested under specified conditions to ensure durability.
Nonflammability: No visible flame under test conditions.

Features:

High insulating capacity with non-flame inorganic material encapsulation.
Small size with high power load capability.
Multi-connection forms for easy installation.
Widely used in power supply, transducer, elevator, and high-requirement equipment industries.

Ordering Information: The ordering code includes series name, power rating, resistance tolerance, resistance value, and T.C.R. Example: RHA 100R0 C1 indicates a 100Ω resistor with ±100PPM/℃ T.C.R.

Graphs and Charts: The document includes derating curves, pulse energy graphs, and power overload charts to illustrate performance under various conditions.

Catalog excerpts

t Features IAluminum crust surface with good performance in heat radiation, suitable for cooling plate installation, can be used in the rugged environment. HSmall size, high power load. HHigh insulating capacity, encapsulation by non-flame inorganic material, good performance in vibration. IVMulti connection form will be easily to fix. VWidely used in power supply, transducer, elevator, arena audio and high requirement equipment industry. ^Resistance tolerance: ±1%, ±2%,±5%,±10%. SHENZHEN KWX ELECTRONICS CO., LTD Http://www.kwxcom.com

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Voltage Resistance(V)

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RHA Aluminum Housed Power Resistors Derating curve 60 Healsink temp(℃) Healsink temp(℃) Plulse energy（J） Plulse energy（J） Multiple of the rated power This graph indicates the amout that power(at 20℃) of the stand HS Series resistor may be reduced for overloads of 100 MS to 60 S.

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% Surface temperature rise For resistor mounted on standard heatsink related to power dissipation. Remarks: Heatsink is recommended as it got good heat radiation. Even you have used the heatsink, the maximum temperature 200°C can not be surpassed.

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