SEK221M200ST

Operating Temperature:	-40°C ~ 105°C
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.654" (42.00mm)
Size / Dimension:	0.709" Dia (18.00mm)
Lead Spacing:	0.295" (7.50mm)
Applications:	General Purpose
Ratings:	--
Polarization:	--
Series:	SEK
Lifetime @ Temp.:	2000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	900 mOhm
Voltage - Rated:	200V
Tolerance:	±20%
Capacitance:	220µF
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 widely used components in electrical and electronic circuits. The SEK221M200ST is a common type of aluminum electrolytic capacitor. This article will discuss the application fields and working principles of the SEK221M200ST.

Applications of SEK221M200ST

The SEK221M200ST aluminum electrolytic capacitor is a reliable component with a long service life. It is widely used in a variety of applications, such as power supplies, motor drives, and LED lighting systems.For power supply applications, the SEK221M200ST is used to stabilize voltage fluctuation in low-power circuits. It can also be used for passive filter circuits, where it reduces the amount of unwanted low-frequency noise.In motor drive applications, the SEK221M200ST can be used to regulate motor-start voltages and reduce ac ripple. The capacitor can also be used to filter out low-frequency noise and voltage spikes, which can improve the performance and reliability of the system.In LED lighting systems, the SEK221M200ST can be used to improve the lighting intensity and current management. The capacitor can also reduce ac ripple and noise in the circuit, providing a more stable power supply for the LED system.

Working Principle of SEK221M200ST

The SEK221M200ST aluminum electrolytic capacitor consists of three main components: an electrolyte, a dielectric, and two metal plates known as the anode and cathode.The anode and cathode are made from aluminum foil, which is then etched to create a large surface area. The electrolyte helps to form an oxide layer on the aluminum, creating a thin dielectric between the metal plates.When a voltage is applied, a charge is placed on the aluminum plates and the capacitance of the capacitor increases. This increases the amount of stored energy that can be released when the voltage is removed.The dielectric layer is critical for the capacitor\'s performance. It is designed to be thicker than the oxide layer, so that it can handle larger voltages without breaking down. This increases the capacitor\'s durability and ensures a long service life.

Conclusion

The SEK221M200ST aluminum electrolytic capacitor is a reliable and durable component with a long service life. It is widely used in a variety of applications, such as power supplies, motor drives, and LED lighting systems. The working principle of this capacitor involves the formation of an oxide layer between two metal plates, which allows the capacitor to store energy and release it when needed.

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