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How to determine the polarity of a capacitor?
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2021-06-15 15:56
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SMD capacitors are generally divided into ceramic capacitors, SMD tantalum capacitors, SMD aluminum electrolytic capacitors, etc. So what kind of characteristics do they have, let's let the editor of
SMD capacitors are generally divided into ceramic capacitors, SMD tantalum capacitors, SMD aluminum electrolytic capacitors, etc. So what kind of characteristics do they have, let's let the editor of Samsung SMD capacitor manufacturers take you to the specific Learn about.
SMD ceramic capacitors have no polarity: the capacity is relatively small. In general, it can withstand high temperature and voltage. Generally, it is often used for high-frequency filtering. Ceramic capacitors look like chip resistors, but they are There is no figure on the capacitance.
Characteristics of chip tantalum capacitors: relatively long life, high temperature resistance, high accuracy, excellent performance in filtering high-frequency waves, but smaller capacity, more expensive than aluminum capacitors, and relatively weak withstand voltage and current capabilities. It is used in small-capacity low-frequency filter circuits.
SMD tantalum capacitors are compared with ceramic capacitors: their surface has capacitance and withstand voltage marks, and their surface colors are usually yellow and black. For example, 100-16 means the capacity is 100μF and the withstand voltage is 16V.
SMD aluminum capacitors are compared with SMD tantalum capacitors: capacitors have a larger capacity, which is more common on graphics cards, and the capacity is between 300μF and 1500μF. It is mainly to meet the filtering and stabilizing effects of low-frequency current.
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