UPJ1H121MPD

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Aluminum electrolytic capacitors are a type of capacitor that uses aluminum foil as the electrode and is filled with an electrolyte. The UPJ1H121MPD is a type of aluminum electrolytic capacitor. It is mainly used in automotive, automotive electronics, and switching power supplies.

The UPJ1H121MPD is a Leaded Aluminum Electrolytic Capacitor. It has dimensions of 12.5x19mm (0.5x0.75in) and has a capacitance of 120μF + 20%. It operates from -40°C to +105°C and has a voltage rating of 175VAC or 250VDC. With a ripple current rating of 2001ARMS and a maximum leakage current of 0.06CV (uA) or 3μA, the UPJ1H121MPD has a long service life. The Endurance rating is 2000 Hrs at 105°C and the Capacitance Change is ±20% (120°C, 100Hrs). This makes it suitable for many types of applications.

The working principle of aluminum electrolytic capacitors is based on Faraday’s Law of electrolysis. This law states that when a voltage is applied to two electrodes of a conductor surrounded by a conductive electrolyte, electrons flow from the negative impressed electrode to the positive electrode in direct proportion to the applied voltage. The resulting electric field between the electrodes attracts the ions present in the electrolyte towards the positive electrode and away from the negative electrode. This phenomenon creates an electrolytic double layer of positively charged ions in front of the positive electrode along with negatively charged ions behind the negative electrode. The increased voltage across the two plates creates an electric field that stores the energy.

The UPJ1H121MPD aluminum electrolytic capacitor is widely used in many types of applications, such as automotive, automotive electronics, and switching power supplies. It is used for various tasks such as power filtering, smoothing of voltage fluctuations, energy correction, and energy storage. Due to its low equivalent series resistance (ESR) and low leakage current, it is highly reliable and long lasting.

In conclusion, the UPJ1H121MPD is an aluminum electrolytic capacitor that has a capacitance of 120μF + 20%, a voltage rating of 175VAC or 250VDC, and a ripple current rating of 2001ARMS. It is known for its low ESR and low leakage current and is widely used in automotive, automotive electronics, and switching power supplies. The working principle of aluminum electrolytic capacitors is based on Faraday’s Law of electrolysis, where electric fields created between the two plates store energy.

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