Large-scale power supply equipment, medical equipment, power equipment and other products in use often need to absorb some of the excess power generated. The high power consuming resistors used here are load resistors. Load resistors are also known as discharge resistors, braking resistors, brake resistors, and absorber resistors due to their special role. These resistors have high power and are generally non-inductive power resistors. Non-inductance, ultra-low inductance is an important requirement for these products, in the process of absorbing power to excess power discharge, if the inductance of the resistor is too large, it is easy to generate shock, other components in the circuit, the power supply and the device itself to produce harm, and even directly burned many internal devices.