Bourns potentiometers have become key components in the electronic field due to their wide range of applications, including high-tech products such as household appliances, communications, instrumentation, digital technology and medical equipment. Therefore, it is crucial to operate Bourns potentiometers correctly and safely.
First of all, you need to pay attention to moderation when installing the potentiometer. For "rotary type" potentiometers, the strength of the fixing nut should not be too tight to prevent damage to the threads or affect the smooth rotation of the potentiometer. When installing an "iron shell straight slide" potentiometer, avoid using screws that are too long, which may hinder the normal movement of the slide handle or even cause damage to the potentiometer.
Secondly, it is very important to keep the surface of the potentiometer dry. The presence of any water mist or water droplets may cause insulation degradation or short circuits, so special care should be taken when using bourns potentiometers in humid environments.
In addition, when welding the terminals of the bourns potentiometer, the welding temperature and time must be controlled. Excessively high temperature or too long welding time may cause damage to the potentiometer. To avoid soldering problems, such as poor contacts or open circuits, avoid using water-tolerant or low-quality fluxes, which can cause metal oxidation and material mold.
Due to the contact resistance between the resistor and the contact piece
Not conducive to the passage of large currents, bourns potentiometers are most suitable for voltage adjustment structures. In terms of wiring method, it is recommended to use "1" pin for grounding, and avoid using it in the current adjustment structure to ensure the normal operation and life of the potentiometer.
When welding Bourns potentiometer, special attention needs to be paid to the use of flux. Excessive use of flux may cause it to invade the interior of the potentiometer, causing poor contact between the brush and the resistor body, causing noise and internal noise. Therefore, during the welding process, the height of the flux on the printed circuit board must be reasonably adjusted to prevent it from penetrating into the potentiometer.
Finally, since the resistors of Bourns potentiometers are mostly polycarbonate synthetic resin materials, they should be avoided from being exposed to certain chemicals, such as ammonia, alkali aqueous solutions, aromatic hydrocarbons, lipid hydrocarbons, and ketones. , other amines and strong chemicals (the pH value is too high), etc. These substances may adversely affect the performance of the potentiometer.