The use precautions of SMD aluminum electrolytic capacitor

The use precautions of SMD aluminum electrolytic capacitor
(1) The working voltage of the capacitor should be lower than the rated voltage and must not exceed the rated voltage.
(2)) Chip capacitors can replace small voltages with large voltages.
(3) The capacitor accuracy and material type should be reasonably selected.
(4) The size specification (series) of the 0805 chip capacitor on the market is relatively complete, and some of the 0603 capacity may be out of stock. When the production volume is not too large, in order to prevent the market from being out of stock and affecting production, the pad can be slightly extended to make it suitable for 0603 and 0805, so as to avoid production stoppage due to missing parts.
(5) The chip multilayer ceramic capacitors are all packaged, and the model number is on the reel without any mark on the capacitor. Although the capacity can be known by measurement methods, it is difficult to distinguish the accuracy level of the material category. Therefore, be careful during use, especially when assembling by hand.
(6) Open-type chip trimmer capacitors cannot be wave soldered, while closed chip trimmer capacitors can be wave soldered.
(7) Chip capacitors generally adopt multi-layer structure. Some people use manual soldering with soldering iron. At this time, it is necessary to pay attention to the welding speed to avoid overheating, which causes the base end to break due to large temperature difference and reduce the capacity.
(8) The chip capacitor uses a ceramic substrate which is thin and brittle. Some boards are thin, and they are deformed when the force is uneven during installation, which easily causes the capacitor to break. Solution: In addition to improving the design process, the tubular capacitor can be used in places where it is easy to cause breakage, because the tubular capacitor has high strength and is not easily broken.