UPW1J391MHH

Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.984" (25.00mm)
Size / Dimension:	0.492" Dia (12.50mm)
Lead Spacing:	0.197" (5.00mm)
Impedance:	70 mOhms
Ripple Current @ High Frequency:	1.72A @ 100kHz
Ripple Current @ Low Frequency:	1.29A @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	UPW
Operating Temperature:	-55°C ~ 105°C
Lifetime @ Temp.:	7000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	63V
Tolerance:	±20%
Capacitance:	390µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic CapacitorsAluminum electrolytic capacitors, also known as aluminum electrolytic capacitors, are widely used in active and passive electronic components. They are widely used in radio, television, instrumentation, automatic control, computers, communication equipment, household appliances and other products. The UPW1J391MHH model is an aluminum electrolytic capacitor with extended temperature range. It has a variety of types and specifications, including long life and ultra-long life.Application FieldUPW1J391MHH aluminum electrolytic capacitors are applicable to SMD reflow soldering, PCB wave soldering, and other mounting techniques. As they have a temperature range of -55°C to +105°C, they are suitable for use in various applications, such as consumer electronics, automotive electronic, military/space, and industrial control boards. In addition, they are also suitable for motor starting and snubber circuits, as well as in high-current pulse applications, thanks to their 360Vdc rated voltage and 200Vac working voltage. Working PrincipleUPW1J391MHH aluminum electrolytic capacitors work on the principle of electrolysis. It is composed of a metal plate, a separator, and an electrolyte. The metal plate is made of aluminum foil, which is treated by special processes, and its surface is therefore hydrophilic. The separator is usually made of paper or pressboard. The electrolyte is a mixture of sulfuric acid and water. The electrolyte in the tank forms a dipole between the two electrodes. When electric power is applied, the cations flow to the negative electrode, and electrons move to the positive electrode, forming a large number of charged particles in both the anode and the cathode. The separator permits only ions to pass through, thus preventing a short circuit between the opposite ends of the electrode. The metal plate with the charged particles forms an electrostatic field, and charges of a certain potential accumulate on the surface of the metal plate. At the same time, the ions in the electrolyte will cause the two metal plates to be corrodible. This corrodibility creates a tiny chemical reaction, and this energy is used to store and discharge energy in the capacitor. The reaction creates and stores some energy in the capacitor, but most of the energy stored in the capacitor is electrostatic energy.AdvantagesUPW1J391MHH aluminum electrolytic capacitors have a variety of advantages over other types of capacitors, such as ceramic and tantalum. They have a much higher capacitance and a much wider working temperature range, making them ideal for use in diverse applications. In addition, they are much cheaper than other types of capacitors, which makes them very cost effective.DisadvantagesDespite their many advantages, aluminum electrolytic capacitors have some drawbacks. First, they have a much lower life expectancy than other types of capacitors. Furthermore, they are more susceptible to damage from heat and vibration, and thus must be properly housed and insulated. Lastly, due to the nature of their construction, they tend to have a higher equivalent series resistance (ESR). ConclusionUPW1J391MHH aluminum electrolytic capacitors are a popular choice for a variety of applications, due to their extended temperature range and high capacitance. They are also much cheaper than other types of capacitors, making them very cost effective. However, they have a much lower life expectancy than other types, and they are more susceptible to damage from heat and vibration. Therefore, they must be properly housed and insulated. Despite these drawbacks, they are still a popular choice for a variety of electronic applications.

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