MF Power Resistor Ltd

• In case of high frequency application, had better chose Low-Inductive Resistor.

• Do not over load Resistor.

• Keeping all other components apart from Resistor, especially  temperature sensitive component.

• For Resistor need to be worked continuously 100% duty cycle, choose Resistor with rated power at least1.2 times higher than the actual loaded power. This can extend resistor life and lower resistor surface temperature. We don't suggest loading resistor up to its 80% rated power for continuous, long loading time with 100% duty cycle work. Our resistor can withstand very high surface temperature. However very hot resistor surface might be not good for the operator.

• external force cooling fans or cooling system can lower resistor surface temperature.

• For very low ohmic resistance Resistor, it is better to tell the working Voltage and Duty Cycle of your application. As different Voltage can induce different electrical current. In turn different raw materials and production process is needed to withstand the generated high current and temperature.

• Maximum Voltage for a Resistor is based on Ohm's Law - limited by the resistance value.

• For short period of time overload, can withstand 5~10 times of the Rated Power in 5 seconds, depends on the current pulse width,  resistor series and cooling system.

• below is one of the Derating Curves for Power Resistors, for individual resistor's derating curve, please contact us.

       

• Clean Resistor Tab Terminals before use. Cannot clean Resistor with organic solvents.

• Do not scratch surface of Resistor with any hard or pointed object.

• Do not touch surface of Resistor when it is connected to a power source due to high resistor surface temperature.

• UL 94V-0 class coating, provided Resistors should work within specification.

• For Silicon Coated Resistors Smoke might be emitted during initial power load, this is normal and the resistor is safe.

• Resistance, Rated Power, Resistor Size, Mounting Fixture and Inductive / Low Inductive can be made according to customer’s need.