UPM1C391MPD

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are some of the most commonly used capacitors in electric circuits. Generally speaking, they consist of a thin plate of anode aluminum foil, a paper separator soaked in electrolyte, and a cathode aluminum foil rolled together and placed in an aluminum container with electrolyte to form a metal oxide capacitance. The working principle of aluminum electrolytic capacitors is based on the electric double-layer formed by the connecting surface oxide of the anode and the cathode electrode, and the charge and discharge of ions in the electrolyte.

One of the most commonly used aluminum electrolytic capacitors is the UPM1C391MPD. it is a non-polarized electrolytic capacitor with a capacitance of 391uF (microfarads) and a rated voltage of 85V, DC (direct current). The UPM1C391MPD capacitor is designed for a wide range of commercial and industrial applications, including the following:

• Power supplies
• Electronic ballasts
• Lighting products
• High-efficiency DC-DC converters
• Automotive applications
• Power supply conditioning
• Power line filtering applications

The main advantage of UPM1C391MPD caps is their high current capability and low ESR (equivalent series resistance). These features make them ideal for applications where a fast current pulse is needed or where a low output impedance and low noise is required. Additionally, UPM1C391MPD caps come in an epoxy-molded package, which helps to reduce the risk of vibration-induced microphonic effects.

When it comes to how an aluminum electrolytic cap works, it has to do with how ions are moved between two electrodes. When a voltage is applied to the anode of the cap, a current will flow that causes positively charged ions to move from the electrolyte through to the anode. As the positive ions arrive at the anode, they neutralize the negative charge on the anode. This charge balance sets up an electric double-layer between the anode and cathode that stores electrical energy in the form of an electric field. When the voltage on the anode is reduced, the ions that were moved to the anode will move back through the electrolyte and back to the cathode. This process causes a capacitance to be created between the anode and cathode and allows the cap to store and release energy when a voltage is applied or removed.

The UPM1C391MPD is a reliable and cost-effective choice for many applications that rely on an aluminum electrolytic capacitor. With its high current and low ESR, it is perfect for power line filtering applications, automotive applications, and more. The epoxy-molded package helps to reduce the risk of microphonic effects that can cause noise and interference in the circuit. With its broad range of applications and reliable performance, the UPM1C391MPD is a great choice for a wide range of projects and applications.

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