Series:	UPJ
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	120µF
Tolerance:	±20%
Voltage - Rated:	80V
ESR (Equivalent Series Resistance):	--
Lifetime @ Temp.:	5000 Hrs @ 105°C
Operating Temperature:	-55°C ~ 105°C
Polarization:	Polar
Ratings:	--
Applications:	General Purpose
Ripple Current @ Low Frequency:	444mA @ 120Hz
Impedance:	200 mOhms
Lead Spacing:	0.295" (7.50mm)
Size / Dimension:	0.630" Dia (16.00mm)
Height - Seated (Max):	0.650" (16.50mm)
Surface Mount Land Size:	--
Mounting Type:	Through Hole
Package / Case:	Radial, Can

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(Aluminum Electrolytic Capacitors)

UPJ1K121MHD6 Application Field and Working Principle

Aluminum electrolytic capacitors are widely used in electronic circuits. The UPJ1K121MHD6 is a type of aluminum electrolytic capacitor that has been specifically designed for audio applications, such as sound boards or amplifiers. Due to its size and capacity, this capacitor is particularly suited for low frequency audio applications.The UPJ1K121MHD6 is an industrial grade, snap-in mount aluminum electrolytic capacitor with a rated capacity of 12000 μF and a rated voltage of 2.0 V. The capacitor measures 30 mm in diameter and 57 mm in height, resulting in a relatively compact footprint. It has protective caps on both the negative and positive terminals for user safety. Aluminum electrolytic capacitors operate on the principle of using an electrolyte as the dielectric material between two plates. This electrolyte is usually a solution of boric acid in water. A current will flow when voltage is applied, creating an electric field between the two plates. This electric field is absorbed by the electrolyte, forming a dielectric obstruction, thereby creating a capacitor. The ability of the capacitor to store energy depends on the area between the plates, as well as the thickness of the electrolyte material.The construction of the UPJ1K121MHD6 differs slightly from conventional aluminum electrolytic capacitors, as it features an anode made from aluminum foil that has been rolled into a spiral shape, rather than the more standard flat plate. This winding produces a larger surface area which, in turn, increases the capacitor’s capacity. Additionally, the UPJ1K121MHD6 incorporates a safety valve inside the can for protection against excess pressure from a failed lead seal. The UPJ1K121MHD6 is typically used in audio and low noise applications, as its extremely low ESR ratings allow for better resolution of audio signals. The low ESR rating also means that the capacitor is more stable and reliable in high current applications, such as power supplies. Additionally, the snap-in mount ensures that the capacitor can be securely attached to the PCB, and allows for easy replacements. In conclusion, the UPJ1K121MHD6 is a large capacity aluminum electrolytic capacitor that has been specifically designed for audio applications. Its increased capacity is due to the winding anode design, and its low ESR ratings ensure better resolution of audio signals. It also offers increased stability and reliability for high current applications, as well as easy installation with its snap-in mount design.

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