Why are the pins of electrolytic capacitors magnetized? |Focus on mid-to-high-end brand capacitor manufacturers

In many people's minds, the pins of electrolytic capacitors are pure copper. However, many people have found magnetism on the leads after buying electrolytic capacitors on the market. Everyone will agree that they have bought counterfeit products, and that only counterfeit products will use iron leads. Is that really the case? Let's take a look at it. For a period of time in the 1980s, everyone generally used high-quality copper capacitor leads. However, with the development of the economy and the expansion of market demand, most of the current electrolytic capacitor products are iron leads to meet the requirements of the increasingly low price of electronic equipment. Not only electrolytic capacitors, but also other capacitors, low-power resistors, etc. Copper leads are used for high-power resistors and high-power rectifier diodes that require heat dissipation.

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