What are the precautions for using high-ripple-resistant electrolytic capacitors?
Release time:
2022-12-16
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High-ripple-resistant electrolytic capacitors are now widely used across various industries. Thanks to their excellent performance, they have gained increasing recognition from more and more people. Moreover, during use, they demonstrate numerous advantages. Below, let’s take a look at the key precautions for using high-ripple-resistant electrolytic capacitors.
Now High-ripple-resistant electrolytic capacitor It is widely used across various industries and has gained increasing recognition thanks to its excellent performance. Moreover, it demonstrates numerous advantages during use. Now, let’s take a look at the precautions you should keep in mind when using high-ripple-resistant electrolytic capacitors.
High-ripple-resistant electrolytic capacitor Its outstanding advantage is that it is highly environmentally friendly. It is a green energy source that causes no pollution to the environment when used and is harmless to human health. Because it poses no harm, it has been widely adopted. Although it boasts many advantages, there are also several points that require attention. For example, the operating voltage must not exceed the rated voltage; if the operating voltage surpasses the rated voltage, leakage current will increase significantly, potentially causing damage. The recommended operating voltage is 70% to 80% of the rated voltage—using the capacitor within this recommended range can extend its service life. During operation, avoid allowing excessively large ripple currents to flow through the capacitor. Once the ripple current exceeds the rated value, it can cause the capacitor body to overheat, reduce its capacitance, and shorten its lifespan. The peak value of any applied ripple voltage should be kept below the rated operating voltage. Another important consideration is the appropriate temperature range of the operating environment: the characteristics of high-ripple-resistant electrolytic capacitors can vary with changes in operating temperature. At high temperatures, capacitance and leakage current tend to increase, while power loss decreases; at low temperatures, capacitance and leakage current decrease, while power loss increases. Using the capacitor at lower temperatures can prolong its lifespan. According to scientific statistics, for every 10°C drop in ambient temperature, the capacitor’s lifespan doubles.
Use High-ripple-resistant electrolytic capacitor It is important to pay attention to checking the operating frequency. Capacitors are typically measured at frequencies between 100 and 120 Hz. However, capacitance tends to decrease as the frequency increases, while losses rise with increasing frequency, and the ambient temperature also tends to rise. Long-term storage has relatively little impact on a capacitor's capacitance and losses, but it can increase leakage current and reduce the capacitor's voltage withstand capability. Before long-term storage, the DC voltage should be gradually increased to the rated voltage. Of course, there’s another crucial point: for instance, the capacitor’s case and cathode are connected via an electrolyte. If the capacitor’s case must be electrically insulated from the circuit, appropriate insulation measures must be taken at the installation location. Applying excessive force to the terminals or leads can exert tensile stress inside the capacitor, potentially causing lead breakage or terminal splitting, which in turn may damage internal connections, leading to short circuits, open circuits, or internal leakage within the capacitor. Such conditions can cause a surge in current, ultimately resulting in capacitor failure. When soldering high ripple-resistant electrolytic capacitors onto a circuit board, avoid shaking the capacitor vigorously. The soldering iron tip should maintain a certain distance from the capacitor’s plastic casing. When immersing the capacitor into the solder bath, it is recommended that the temperature remain below 260°C and the immersion time not exceed 10 seconds, to prevent damage to the capacitor—specifically, the plastic casing could crack or shrink due to prolonged soldering exposure and high temperatures.
Having introduced the above-mentioned content, we’ve now also learned about the precautions for using high-ripple-resistant electrolytic capacitors. We’ll continue updating you on other relevant topics in the next installment—so if you have the time, be sure to tune in. Our customer service team is available 24 hours a day to assist you. Over the years, our company has been committed to expanding and developing both domestic and international markets, adopting a dual approach that combines online e-commerce platforms with offline physical retail sales.
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High-ripple-resistant electrolytic capacitor
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