Four-pin alloy resistor for four-terminal electrical resistance measurement, for Kelvin connection also known as four-pin Kelvin resistance refers to the resistance usually used four-pin Kelvin connection, the structure of the resistance can eliminate the voltage drop at both ends of the resistance on the detection value. In a current detection circuit, the resistance of the contact resistance and the pin may be larger than the resistance value of the resistance itself, so using the resistance of both feet can cause significant measurement errors.
Four-pin alloy resistance material characteristics
Four-pin resistor materials usually have excellent resistivity and stability. Common materials include nickel-chromium alloy or sodium silicate, etc. These materials not only have high resistivity, but also good stability, and can maintain stable resistance values in a variety of environments.
Four-pin alloy resistor manufacturing technology
The four-pin resistor is manufactured with exquisite technology, and the resistor pieces are carefully designed, such as wire mounting, sheet type, ribbon type, etc., to adapt to different application needs. The manufacturing process mainly includes material preparation, electrode preparation, resistance fabrication, cutting and debugging, packaging and testing and other steps. These steps are subject to strict quality control to ensure product quality and performance.
Four pin alloy resistance advantages
Small size, light weight; Suitable for wave soldering and reflow welding;
Stable electrical performance, high reliability;
High mechanical strength, high frequency characteristics;
Low assembly cost and matching with automatic mounting equipment;
Low production cost, with automatic SMT machine, suitable for large-scale production of modern electronic products;
Four-pin alloy resistance applications
Four-pin Kelvin resistors are widely used in high-end computers, industrial equipment, wide range of resistance values, automatic control equipment, communication equipment, medical equipment, high-tech multimedia electronic equipment and so on.
