Features: In various bridge circuit, in order to adjust bridge balance, the potentiometer must be adjusted many times, can the balance bridge, during use, when the potentiometer is subjecteds to vibration,shock, temperature, humidity and other external environment alfactors, the potential of the location and parameters will change,causing system to change the index, for system to reachthe status quo, must be adjusted, which caused a lot of inconvenience to use, for bridge arm circuit using array of potentiometers and digital technology, not only to overcome the above drawbacks, but also can greatly improve the accuracy of system. X9C104 100 order digital potentiometer, specifically X9C102 /103/104/503 series, the resistance in the ranges of 40R~100K, X9C104contains 99 internal resistors arrays, there is slide in between eachunit and the two endpoints tap accesses point unit, the position ofthe slide unit by the U / D three inputs control, but alocation is selected, can be stored in nonvolatile memory and canbe recalled after the power next time. Digital potentiometerchanges is stepped or incremental change in resistance changeslinearly. For example x9C104, resistance ranges 40R ~100K, dividedinto 100 bands, the incremental point for each tap 1010R. Temperature compensation function: resistance error endpoints: ±20%; Specifications: Component:Plastic Size:Approx.15x13.2mm/0.59x0.52inch Option Type:1pc,3pcs; Accuracy: 0.01 Working voltages : 5V Total resistance: 100kQ The terminals voltages :-5~5V The number of taps:100 interfaces: U /D, INC The increase in resistance mode: Linear Operating Current: 3mA Package /Temperature ('c): 8SOIC/-40~85 Description: tap position automatic storage Package Includes: Package A 1pc Mini Potentiometer Module Package B 3pcs Mini Potentiometer Module note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.