In order to prevent short-circuit and spontaneous ignition under DC overvoltage, and to improve safety, Nichicon Corporation's board-mounted self-standing type 105 ° C for 2000 hours, which is mounted on equipment most suitable for use in areas where power supplies are unstable overseas, is guaranteed to respond to abnormal voltages. "A small aluminum electrolytic capacitor with a 450V rating has been added to expand the product lineup.

This product will be exhibited at the 32nd Power System Exhibition held at Makuhari Messe from April 19th (Wednesday) to 21st (Friday).

Overview / development background

Aluminum electrolytic capacitors are mostly used as smoothing capacitors on the input side of switching power supplies. However, abnormal voltage may be applied to the capacitor due to use in areas with poor power supply conditions such as input voltage fluctuations or failure of components in the circuit. The market requires capacitors to have the ability to prevent short circuits and spontaneous combustion, and to safely cause failures to handle abnormal voltages even when overvoltages are applied. In recent years, with the development of high efficiency and energy saving, the high voltage of the system has also developed. In order to cope with global power supply, aluminum electrolytic capacitors are also required to achieve high withstand voltage. The maximum rating of the "LAS series" small aluminum electrolytic capacitors, which are guaranteed to handle abnormal voltage at 105 ° C for 2000 hours, was 420V. This time, the industry's highest level of 450V rating was added. In addition to expanding the product lineup, it is recommended to be equipped as a device specification that is most suitable for use in areas with unstable power supplies overseas.

Specialty

The 450V rating of the "LAS series" is improved by using high-voltage foils with improved withstand voltage performance, withstand voltage electrolyte that suppresses self-discharge ability after improved withstand voltage performance, and withstand voltage electrolyte suitable for high withstand voltage. Withstand voltage performance. In addition, in response to the pressure generated by the abnormal voltage, a withstand voltage structure is adopted to prevent the internal elements from being locally overloaded, and finally achieves the industry's highest level of abnormal voltage performance.

The rated voltage is higher than the existing products, and it can cope with abnormal voltages up to 675V, which improves the safety performance of 45V compared with conventional products. In addition, with the addition of the 450V rating this time, it can also cover the voltage range that supports global power supplies. From then on, it is expected to be widely used as a power supply smoothing capacitor for use in areas where the power supply voltage is high and the input voltage fluctuations are poor.

Main specifications ※ () are the ratings for this expansion

Substrate self-supporting aluminum electrolytic capacitor "LAS series"

Added the industry's highest-level 450V rating and expanded the product lineup