LLS2G121MELY

Operating Temperature:	-25°C ~ 85°C
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.378" (35.00mm)
Size / Dimension:	0.787" Dia (20.00mm)
Lead Spacing:	0.394" (10.00mm)
Ripple Current @ Low Frequency:	1.07A @ 120Hz
Applications:	General Purpose
Ratings:	--
Polarization:	Polar
Series:	LLS
Lifetime @ Temp.:	3000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	400V
Tolerance:	±20%
Capacitance:	120µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors Aluminum electrolytic capacitors are one of the most widely used type of capacitor. They are constructed of an anode made of aluminum foil, a cathode made of aluminum oxide, and an electrolyte that is an ionic conducting liquid. The properties of aluminum electrolytic capacitors lend them to a variety of applications, including power supplies, consumer electronics, medical and industrial equipment, instrumentation, and more.The LLS2G121MELY capacitor is a type of aluminum electrolytic capacitor, but it has some unique features that make it suitable for certain applications. This particular capacitor has an operating temperature range of -55 to +125 °C, a capacitance range of 1.0 to 2200 μF, and it is rated for 4,000 hours of use at +105 °C. It also has a low leakage current, and it’s capable of handling large DC voltage spikes without incurring damage.The main application of the LLS2G121MELY capacitor is in power supplies and high power DC-DC converters, where it can be used to help regulate the DC output voltage of the device. In power supplies, the capacitor provides a low impedance energy storage device, which means it can absorb large amounts of energy quickly and release it slowly, allowing for a smoother DC output voltage with minimal ripple and noise. In DC-DC converters, it can be used to condition the output voltage, helping to reduce the amount of output voltage ripple, improve regulation, and make the system more efficient overall.The working principle of an aluminum electrolytic capacitor is based on the same physics as other types of capacitors. In a simple circuit, a capacitor is charged to a certain voltage level when a current is applied to it, and when the current is removed, the charge remains on the capacitor. This is because the capacitor acts like a reservoir of energy, storing it until it is released or dissipated into the circuit.When a current is applied to an aluminum electrolytic capacitor, the electrons collide with the aluminum oxide surface, forming a chemical reaction that produces a build-up of oxidation layers on the aluminum foil. This oxidation layer acts as an insulator between the aluminum foil and the electrolyte solution, creating a potential difference across the oxide layers. When a voltage is applied to the capacitor, the electrons are forced to pass through the oxide layers. This process is what gives aluminum electrolytic capacitors their unique properties and makes them suitable for use in high power DC-DC converters and power supplies.In summary, the LLS2G121MELY aluminum electrolytic capacitor is a versatile component that can be used in a variety of applications, including power supplies and DC-DC converters. It has a low leakage current, a wide operating temperature range, a high holding capacity, and is capable of withstanding large DC voltage spikes. It is suitable for use in both commercial and industrial applications, and its working principle is based on the same physics as other types of capacitors.

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