EKMH251VSN821MA35S

Polarization:	Polar
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.457" (37.00mm)
Size / Dimension:	1.378" Dia (35.00mm)
Lead Spacing:	0.394" (10.00mm)
Ripple Current @ High Frequency:	2.97A @ 100kHz
Ripple Current @ Low Frequency:	1.98A @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	KMH
Operating Temperature:	-25°C ~ 105°C
Lifetime @ Temp.:	2000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	303 mOhm @ 120Hz
Voltage - Rated:	250V
Tolerance:	±20%
Capacitance:	820µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors (EKMH251VSN821MA35S) are devices that play an important role in many electronic applications. They are used to store energy and to provide a buffer between two systems that would otherwise experience large voltage changes. But what exactly is an aluminum electrolytic capacitor, and why are they so important for these applications?An aluminum electrolytic capacitor is a type of capacitor that uses a solid, porous anode made of aluminum foil and a liquid electrolyte that acts as the dielectric between the anode and cathode. The electrolyte is typically an aqueous sulfuric acid solution. This is what gives the capacitor its distinguishing features. It allows for a much higher capacitance than can be achieved with traditional ceramic or film capacitors, and also allows for much higher ratings in terms of voltage and current.The design of aluminum electrolytic capacitors is fairly simple. The anode is made from an aluminum foil, which is shaped into a series of small, narrow bands that increase the surface area. This then has a porous material applied to it, to allow the electrolyte to pass through. The cathode is typically made from another aluminum foil, which has a very thin layer of sulfuric acid coating it. This allows the current to flow between the anode and cathode.There are several common applications for aluminum electrolytic capacitors. They are often used as filtering elements in power supplies, allowing AC ripple to be removed before the power reaches the load. They are also used in motors, to smooth out the power supply and protect the motor from voltage spikes. In audio applications, they are used to reduce “power supply noise” in amplifiers.Because of their high capacitance, aluminum electrolytic capacitors are also used to store energy. This can be used to back up power in case of an outage, or to provide power for short bursts of activity. The large capacitance also makes aluminum electrolytic capacitors very suitable for electrical conditioning in photovoltaic systems. When power is being converted from direct current to alternating current, aluminum electrolytic capacitors can help with this process, providing a steadier voltage supply.Another important application for aluminum electrolytic capacitors is in the area of signal conditioning. They can be used to decouple signals and eliminate noise in communication and radar systems. As well, due to their high capacitance, they can act as a band-pass filter in radio transmitters and receivers.In summary, aluminum electrolytic capacitors play an important role in many electronic systems. They are used for power conditioning, storing energy, filtering signals, and more. Because of their high capacitance and ability to withstand high voltage and current, they are often the best choice in many applications. EKMH251VSN821MA35S is an example of an aluminum electrolytic capacitor that can be used in many different applications.

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