UPS1E330MDD1TD Capacitors

Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.492" (12.50mm)
Size / Dimension:	0.197" Dia (5.00mm)
Lead Spacing:	0.098" (2.50mm)
Impedance:	1.5 Ohms
Ripple Current @ High Frequency:	160mA @ 100kHz
Ripple Current @ Low Frequency:	27.2mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	UPS
Operating Temperature:	-55°C ~ 105°C
Lifetime @ Temp.:	2000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	25V
Tolerance:	±20%
Capacitance:	33µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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Aluminum Electrolytic CapacitorsAluminum electrolytic capacitors are widely used in electronic equipment because of their excellent price-performance ratio. The UP1E330MDD1TD aluminum electrolytic capacitor is a single-ended, low impedance, snap-in type aluminum capacitor. It has a good aging characteristics, a long life and a high ripple current capacity. Application FieldThe UP1E330MDD1TD aluminum capacitor is commonly used in power supplies, computer power circuits, UPS systems, inverters, converters, servo circuits, switching circuits, automotive electronics and telecommunications equipment. It is especially suitable for applications with voltage transients and transients with high temperature changes, making it ideal for use in start-stop or acceleration circuits.Working PrincipleAn aluminum electrolytic capacitor is made up of two aluminum electrodes and separator membranes. One of the aluminum sheets strips away one layer creating an anode, while a layer of aluminum oxide forms the dielectric layer, which in turn serves as a cathode. When a voltage is applied across the two electrodes a current flows which causes the electrolyte within the capacitor to react with the aluminum electrodes to form the dielectric layer of aluminum oxide. When a voltage is applied across the two electrodes, the aluminum ions migrate to the anode and then generate electrochemical reactions, releasing the electrons trapped in the aluminum oxide layer. This generates a correspondingly negative charge in the cathode, thus forming a capacitance. As current passes through the capacitor, the ions migrate from the anode to the cathode. This motion of ions creates a capacitive current, allowing the capacitor to store electric energy. The capacitance of an aluminum electrolytic capacitor decreases with increase in temperature. Once the capacitor has reached its rated voltage, a reverse voltage is applied to the dielectric layer and the ions are attracted back to the anode, which dissipates the energy stored in the capacitor. As the electrons and ions recombine, the capacitor gradually loses its capacitance, reducing its effective voltage. ConclusionThe UP1E330MDD1TD aluminum capacitor is a single-ended, low impedance, snap-in type aluminum capacitor. It has excellent price-performance ratio, good aging characteristics, a long life and a high ripple current capacity, making it ideal for use in applications such as power supplies, computer power circuits, UPS systems, inverters, converters, servo circuits and automotive electronics. It works by utilizing the electrochemical reaction between the aluminum electrolyte and the aluminum oxide dielectric layer, which allows the capacitor to store electric energy.

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