SN221M025ST

Series:	SN
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Capacitance:	220µF
Tolerance:	±20%
Voltage - Rated:	25V
ESR (Equivalent Series Resistance):	900 mOhm @ 120Hz
Lifetime @ Temp.:	1000 Hrs @ 85°C
Operating Temperature:	-40°C ~ 85°C
Polarization:	Bi-Polar
Ratings:	--
Applications:	General Purpose
Ripple Current @ Low Frequency:	390mA @ 120Hz
Lead Spacing:	0.197" (5.00mm)
Size / Dimension:	0.512" Dia (13.00mm)
Height - Seated (Max):	0.787" (20.00mm)
Surface Mount Land Size:	--
Mounting Type:	Through Hole
Package / Case:	Radial, Can

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The SN221M025ST is a type of aluminum electrolytic capacitor that is widely used in different applications ranging from audio, automotive, computer and telecommunications to circuitry boards and solar systems.Aluminum electrolytic capacitors are a popular choice for circuit designs. They are most commonly used to filter noise, store charge, provide energy and act as a frequency-responsive element in AC or DC circuits. They consist of an anode aluminum foil, an electrolyte material, a separator and a cathode foil.The SN221M025ST capacitor is a multi-section, non-polarized aluminum electrolytic capacitor with a molded plastic case and four sealed sections, which are ideal for DC-coupled applications or as power supplies in communication equipment. It is rated for voltage up to 16VAC and has a capacitance range of 2200pF to 25000pF. Its tolerance range is +/-20% with a rated temperature of 85°C and an operational temperature range of -55°C to +85°C. The capacitor is also RoHS compliant. The working principle of the SN221M025ST is based on electrochemical processes. The capacitor is made of two aluminum foils, an electrolyte material between them and a paper separator. When a voltage is applied across the electrodes, the non-polar electrolyte material migrates towards the anode, creating a capacitive effect by forming a thin oxide layer between the electrodes. This oxide layer stores the electrons within the capacitor and allows it to increase its capacitance. The SN221M025ST finds applications in a variety of DC circuits where reliable and efficient energy storage and filtering is required. It has the ability to store energy over long periods of time, which makes it an ideal choice for solar and wind energy applications. Additionally, the capacitor provides protection from ripple currents, and is used in applications such as dc-dc converters, and power supplies in the automotive industry. The SN221M025ST is also used in audio electronics as it provides superior low-frequency noise suppression. Overall, aluminum electrolytic and SN221M025ST capacitors are widely used across industries for reliable energy storage and filtering. Thanks to its superior durability and longevity, it can be used in a variety of applications including automotive, audio, computers, and communications systems.

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