URS1H010MDD

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Aluminum Electrolytic Capacitors

An Aluminum electrolytic capacitor (also known as an Aluminium electrolytic capacitor, or Aluminum electrochemical capacitor) is an electronic component that stores energy in an electrical field. They are widely used in all branches of the electronics industry due to their small size and low cost. In general, an aluminum-based electrolytic capacitor consists of an aluminum foil with an oxide dielectric layer, and a liquid or solid electrolytic that serves as the anode and cathode.

The aluminum-oxide dielectric layer is formed when an anodized aluminum electrode is placed into a solution of an electrolyte, usually boric acid, and subjected to a current. The current causes the formation of a thin, porous layer of aluminum oxide on the surface of the aluminum foil. This layer acts as an insulator to prevent current from flowing in the reverse direction, and also prevents oxidation of the aluminum. Since the aluminum oxide layer is only a few nanometers thick, it has an extremely high dielectric constant.

The URS1H010MDD series is an aluminum electrolytic capacitor designed for high frequency applications. It is able to operate at 1200V in a very small form factor of 10x10mm. The maximum operating frequency is 200kHz and its temperature range is -55 to +125C. It is a non polar capacitor with a low ESR of 0.775mohm, allowing it to be used in high RL applications like DC to DC converters.

The unique design of the URS1H010MDD series also offers excellent high-frequency performance, with a high-frequency impedance of 10mohm and a low-frequency impedance of 7.5mohm. The capacitance is also stable over time, as the temperature coefficient is rated at just -20ppm/C. This makes it ideal for use in high-frequency applications such as switching power supplies, DC-DC converters, and EMI filters.

Additionally, the URS1H010MDD series features reverse-voltage protection, rated at up to +/-20V. This prevents reverse-voltage damage to the capacitors, making them safe for use in power distribution applications such as motor drives and rectifiers.

Overall, the URS1H010MDD series is an excellent choice for high-frequency applications, thanks to its small size, high-performance, and reliable operation. It is able to store energy in an electrical field, while offering reverse-voltage protection, low ESR, and a high-temperature coefficient. All of these features make it an ideal choice for applications such as DC-DC converters and EMI filters.

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