GRM21BR71C225KA12L Capacitors

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Ceramic capacitors are important components for modern electronics. They have low cost, high performance, and high reliability. GRM21BR71C225KA12L is one of the most popular ceramic capacitors from Murata, one of the world’s leading manufacturer of ceramic capacitors. GRM21BR71C225KA12L has gained wide acceptance from the market since its release in 2015.

GRM21BR71C225KA12L is a multilayer monolithic ceramic capacitor that has a low impedance and long life. Its size is 0805 and its capacitance range is 22nF to 0.1uF. The working voltage is 4V to 16V and the tolerance is ±20%, making it suitable for a wide range of applications. It has a high capacitance variation ratio of 5X to 6X. Its dielectric constant is measured at 5.8 to 6.3 at 1MHz, making it ideal for high frequency circuitry. Other features include a very low ESR and ESL, low current leakage, and high dielectric characteristics.

The most popular application of GRM21BR71C225KA12L is in switching DC-DC converters. The low impedance and high capacitance variation ratio make it ideal for such circuit applications. It can also be used for signal line conditioning, such as in the power supply for EMI and high frequency applications. Other applications include filter circuitry, voltage setting circuits, temperature compensation circuits and RF signal matching.

The working principle of GRM21BR71C225KA12L is based on the properties of ceramic materials. Ceramic capacitors consist of two internal electrodes separated by a thin dielectric material. This material provides the capacitors with high dielectric strength, low inductance, and low leakage current. The capacitance of the capacitor is determined by the size and the thickness of the dielectric material between the two electrodes.

When an electrical signal is applied to the capacitor, the static electric field created between the two electrodes causes electrons to flow to the second electrode. This creates an opposing static electric field and the capacitor’s capacitance is determined by the strength of the static electric field and the voltage applied to the electrodes. This current is then stored in the capacitor and can be discharged when the voltage is removed.

In conclusion, the GRM21BR71C225KA12L is a multilayer monolithic ceramic capacitor from Murata. It is designed for high frequency applications and has a low impedance and long life. Its most popular application is in switching DC-DC converters, as it provides a low capacitance variation ratio, high dielectric strength, low inductance, and low current leakage. The working principle of the capacitor is based on the properties of the ceramic material used to separate the two electrodes. This material determines the capacitance of the capacitor and allows it to store and discharge current.

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