100YXG390MEFCGC18X20

Operating Temperature:	-40°C ~ 105°C
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.866" (22.00mm)
Size / Dimension:	0.709" Dia (18.00mm)
Lead Spacing:	0.295" (7.50mm)
Applications:	General Purpose
Ratings:	--
Polarization:	Polar
Series:	YXG
Lifetime @ Temp.:	6000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	100V
Tolerance:	±20%
Capacitance:	390µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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Introduction to Aluminum Electrolytic Capacitors and Application of 100YXG390MEFCGC18X20

Aluminum electrolytic capacitors (Al-ELC) are widely recognized as one of the most commonly used types of capacitor in modern electronic circuits. They are so popular mainly due to their large capacitance values and low cost. This makes them an ideal choice in many applications, ranging from decoupling and filtering in power supplies to several kinds of charge/discharge operations, such as for energy storage.The 100YXG390MEFCGC18X20 is an example of a typical aluminum electrolytic capacitor. This component has a capacitance value of 390µF, with a rated working voltage of 16VDC. Its construction consists of aluminum foil with an anode film and electrolytic liquid, making it a polarized and electrolytic type of capacitor. It uses an aluminum casing and has an Environmental Classification of “18X20”, meaning that it can operate in temperatures between 0°C and 85°C.

Application Field and Working Principle

Aluminum electrolytic capacitors are mainly used in storage, filtering, decoupling, and frequency compensation applications. They can also be used in applications such as motor drives and power supplies, as they possess excellent non-linear and high-temperature characteristics that produce a smooth voltage waveform under load.The 100YXG390MEFCGC18X20 is most commonly used in high-frequency rectifier output filtering, AC line filtering, and power regulator feedback circuits. The working principle of aluminum electrolytic capacitors is based on an oxide layer formed on the foil anode through an electrolytic reaction; this layer acts as a dielectric and separates the anode and cathode within the capacitor. This enables the capacitor to store energy, allowing it to filter or block signals of various frequencies.

Design Considerations

When choosing and designing with aluminum electrolytic capacitors, a wide range of factors must be taken into account. These include temperature range, ripple current, ESR, leakage current, surge voltage, capacitance, and amount of ripple current. Additionally, due to the fact that aluminum electrolytic capacitors are polarized, special attention must be paid to the direction of current flow. It’s also important to keep in mind that these components tend to have larger sizes compared to other types of capacitors.The 100YXG390MEFCGC18X20 has an Environmental Classification of “18X20”, which indicates that it’s suitable for operation in temperatures between 0°C and 85°C. It has a working voltage of 16 VDC and a capacitance value of 390µF. This component can handle a ripple current of 1.54A and has a leakage current of 1μA at 25°C. It also has an ESR of 39 mΩ at 25°C.

Conclusion

Aluminum electrolytic capacitors, such as the 100YXG390MEFCGC18X20, are widely used in a variety of circuit applications, thanks to their excellent non-linear and high-temperature characteristics. They are often used in storage, filtering, decoupling, and frequency compensation applications, and can handle relatively large ripple currents. However, due to their large size and the fact that they are polarized, special attention must be paid when using aluminum electrolytic capacitors, as they require careful consideration when it comes to capacitance, temperature range, ripple current, ESR, leakage current, surge voltage, and direction of current flow.

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