EEV-EB2E220SM

Polarization:	Polar
Package / Case:	Radial, Can - SMD
Mounting Type:	Surface Mount
Surface Mount Land Size:	0.669" L x 0.669" W (17.00mm x 17.00mm)
Height - Seated (Max):	0.650" (16.50mm)
Size / Dimension:	0.630" Dia (16.00mm)
Lead Spacing:	--
Ripple Current @ High Frequency:	560mA @ 100kHz
Ripple Current @ Low Frequency:	308mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	EB
Operating Temperature:	-25°C ~ 105°C
Lifetime @ Temp.:	5000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	250V
Tolerance:	±20%
Capacitance:	22µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Aluminum Electrolytic Capacitors

Aluminum Electrolytic Capacitors are a type of capacitors that use anodic aluminum oxide (AAO) as the dielectric. They are widely used in power supplies, switching power supplies and operations. The EEV-EB2E220SM (SM stands for Snap-in) is a type of aluminum electrolytic capacitor which is designed for lower ESR, low leakage current and high capacitance. This SM series also features an extended temperature range up to 105°C and an impressive 2,200µF rated voltage. It’s a super long-life electrolytic capacitor that offers improved reliability and endurance.

Application Field

The EEV-EB2E220SM is widely used in various applications and industries. It is commonly used in power supplies, DC/DC converters, LED display systems, LED lighting, LCD displays, automotive and transportation, and semiconductor equipment. It is also ideal for use in audio/video equipment such as A/V receivers, tuners, and amplifiers.

Working Principle

The working principle of aluminum electrolytic capacitors depends on an oxide film formed on the surface of an aluminum foil. This oxide film becomes dielectric which stores electric energy and isolates the plates. The metal aluminum layer acts as positive electrode and the capacitor\'s negative is usually connected to the steel can.When the capacitor is uncharged, the resistance between the plates is extremely low. As soon as the capacitor is subjected to a DC voltage, however, it charges to the applied voltage and its resistance increases. An electrolyte is filled in the capacitor which helps to form the oxide layer and allow electrons to flow through the aluminum foil when current is applied.The capacitance of an aluminum electrolytic capacitor is determined by the size of the dielectric and the area of the aluminum foil. To reduce ESR and increase capacitance, aluminum electrolytic capacitors are constructed with small particles of the dielectric material distributed more efficiently, and more closely spaced between the aluminum electrodes.

Advantages

The EEV-EB2E220SM aluminum electrolytic capacitor features some additional advantages. It has highly reliable long life of 10000h to 40000h, low ESR and high capacitance. This capacitor also has strong heat resistance and capacitor voltage is adjustable. It has excellent circuit performance, good self-healing properties, and is also a low-cost option.The EEV-EB2E220SM is also compatible with PCBs due to its SM series snap-in design. This allows them to be easily mounted onto PCBs without any extra tools or soldering which increases design flexibility.

Disadvantages

Aluminum electrolytic capacitors suffer from two shortcomings, a limited life cycle and low insulation resistance. Because of the negative electrode made of aluminum, the corrosion of the material can slowly occur even without electrical stress. The lifetime of the capacitor is determined by the material used, and by the temperature to which it operates. Failure to meet the temperature level can cause the capacitance of the capacitor to decrease.In addition, aluminum electrolytic capacitors have low insulation resistance. This can cause problems if the dielectric breaks down on the surface of the aluminum foil. A breakdown in the dielectric can cause a short circuit and can damage the capacitor.

Conclusion

Aluminum electrolytic capacitors have been a mainstay in the electronics industry for decades due to their small size, high capacitance, and low cost. The EEV-EB2E220SM aluminum electrolytic capacitor promises ultra-reliable performance and high capacitance in a very small package. It is suitable for applications such as AC/DC converters, power supplies and DC/DC converters. The key advantages of the EEV-EB2E220SM include a highly reliable long life, low ESR, and high capacitance. It also has strong heat resistance and adjustable capacitor voltage which makes it ideal for a wide range of applications. However, aluminum electrolytic capacitors do suffer from two shortcomings, a limited life cycle and low insulation resistance. Nevertheless, the EEV-EB2E220SM is an excellent choice for high performance and reliable aluminum electrolytic capacitors.

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