SEK2R2M350ST

Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.453" (11.50mm)
Size / Dimension:	0.394" Dia (10.00mm)
Lead Spacing:	0.138" (3.50mm)
Ripple Current @ High Frequency:	63mA @ 10kHz
Ripple Current @ Low Frequency:	35mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	SEK
Operating Temperature:	-40°C ~ 105°C
Lifetime @ Temp.:	2000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	120.63 Ohm @ 120Hz
Voltage - Rated:	350V
Tolerance:	±20%
Capacitance:	2.2µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Aluminum electrolytic capacitors (AEC) are used in a variety of applications and have become a major component in consumer electronics, industrial instrumentation, medical devices, automotive and military applications. SEK2R2M350ST is one of the models of AEC, widely used in various applications. This article will mainly focus on its application field and working principle.Application fieldsSEK2R2M350ST is a kind of AEC with low resistance and high ripple current capability. It is used to smooth out voltage fluctuations, reduce power loss, and extend the life of other components. Therefore, SEK2R2M350ST can be used in electronic power supplies, switching power suppliers, voltage regulation device, LED lighting, cars, medical equipment and other applications. It can also be used as noise filter in some high precision and signal sensitive circuits, such as radio circuit.Working principleA traditional AEC capacitors consists of an anode (a metal plate), a nonconductive dielectric (a tantalum pentoxide layer and a cathode (an active coated aluminium foil). It works by creating a molecular film on the cathode in a polarized capacitor. When voltage is applied, an electric current flowing through the electrolyte penetrates through the dielectric coating, producing positive ions on the anode and negative ions on the cathode. Positive and negative ions form an electrochemical reaction on the capacitor\'s plates, forming an electric field between the plates. The electric field creates attraction between the positive and negative ions, thus creating a storage of electrical energy within the polar capacitor.The working principle of SEK2R2M350ST is quite similar except that its anode and cathode plates are made of aluminum. Instead of using a tantalum pentoxide layer as the dielectric, SEK2R2M350ST uses a special kind of aluminum oxide with high dielectric constant. The oxide layer functions as an insulating layer, preventing electrons from passing through it. Thus it can store electrical energy and discharges it quickly when necessary.ConclusionSEK2R2M350ST Aluminum Electrolytic Capacitor is a well-known type of low-resistance capacitor which is widely used in various applications due to its advantages. The oxide layer inside the capacitor makes it work more efficiently and with longer lifetime. Its application field is vast, mainly used in electronic power supplies, switching power suppliers, voltage regulation device, LED lighting, cars, medical equipment and more.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description