EEU-HD1E331B

Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.512" (13.00mm)
Size / Dimension:	0.315" Dia (8.00mm)
Lead Spacing:	0.197" (5.00mm)
Ripple Current @ High Frequency:	465mA @ 100kHz
Ripple Current @ Low Frequency:	310mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	HD
Operating Temperature:	-55°C ~ 105°C
Lifetime @ Temp.:	1000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	25V
Tolerance:	±20%
Capacitance:	330µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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Aluminum Electrolytic Capacitors Aluminum electrolytic capacitors are based on the same principles as that of other capacitors except that they are specifically designed to store very large amounts of electrical energy. These components are highly useful in industrial, electronic and telecom applications due to their large storage capacity and the fact that they can be recharged. The principles of construction and operation of aluminum electrolytic capacitors are of particular interest and this article looks at the principles behind their application in the type EEU-HD1E331B.The EEU-HD1E331B is an aluminum electrolytic capacitor that uses two aluminum foils that are separated by paper or film as the dielectric. The two aluminum foils are then impregnated with an electrolyte which provide the electrical and thermal insulation of the component. The foil that is in close contact with the electrolyte is called the anode and the one that is in contact with the oxide is called the cathode, which differs from the conventional capacitor in which the two plates are both at the same potential.The two aluminum electrodes are connected to the outer casing via two small tin boards and one large copper disc. The copper disc is then connected to the positive terminal of the component and the anode is connected to the negative terminal. There is also an additional resistor connected between the anodes and the cathodes which is used to limit the voltage across the component.When the component is powered, an electric current passes through the anodes and the charge within them produces a surface charge that is opposite in polarity to the applied electric field. This creates a potential difference across the two electrodes and an electric field across the gap between them. This electric field is of the same magnitude as that of the applied electric field, driving current through the component.The charge that is stored within the component is proportional to the voltage across it, meaning that the higher the voltage, the greater the capacity of the capacitor. For example, a capacitor rated at 330V, will have a capacity of approximately 47uf. This is why aluminum electrolytic capacitors are useful in applications where large voltages need to be stored and then discharged slowly. This type of capacitor is also suitable for use in power supplies and is commonly used in appliances in order to reduce noise and improve reliability.In summary, aluminum electrolytic capacitors are components that have the capability to store large amounts of electricity and can be recharged multiple times. The construction and working of an EEU-HD1E331B aluminum electrolytic capacitor comprises two aluminum foils separated by paper or film as the dielectric, a resistor connected between the anodes and the cathodes, and two tin boards and a large copper disc connecting the two electrodes to the outer casing. These capacitors are useful in applications where high-voltages need to be stored and then discharged over a period of time, such as in power supplies and appliance noise reduction.

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