If the capacitor is not properly or unstable during the installation process, it is extremely easy for the whole machine to be subjected to mechanical stress (vibration, shock), which leads to the application of the tantalum capacitor lead-through electrolytic capacitor to the majority of mechanical stress or resonance. Causes it to break and the product fails.
(1) Axial extraction of tantalum electrolytic capacitors
A The mother body of the axially-extracted product must be tightly fitted with the circuit board, with no gaps, and then fixed with glue or resin, otherwise the mechanical stress will cause resonance and the lead fracture will fail.
B The lead bend is 6mm or more away from the (or solder joint) and has R (R is at least 2 times the diameter of the wire). There must be no scratches at the bend.
C large shell products, due to the weight, in the vibration environment, the lead can not bear the full stress. The body must be reinforced during installation, otherwise the mechanical stress will easily break the lead and the recommended fasteners.
(2) One-way extraction of tantalum electrolytic capacitors
(3) Under the front dyke that does not affect the overall circuit design, it is recommended that the components installed on the circuit board be evenly distributed; if the components are light and heavy, the mechanical test of the whole machine is easy to generate resonance and easily lead to product lead breakage failure. .
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