Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.650" (16.50mm)
Size / Dimension:	0.315" Dia (8.00mm)
Lead Spacing:	0.197" (5.00mm)
Impedance:	117 mOhms
Ripple Current @ High Frequency:	555mA @ 100kHz
Ripple Current @ Low Frequency:	416.25mA @ 120Hz
Applications:	Automotive
Ratings:	AEC-Q200
Series:	FC
Operating Temperature:	-55°C ~ 105°C
Lifetime @ Temp.:	2000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	10V
Tolerance:	±20%
Capacitance:	390µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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Aluminum Electrolytic Capacitors - EEU-FC1A391B application field and working principle

Aluminum electrolytic capacitors (also known as electrolytic capacitor, aluminum capacitors, or polarized aluminum capacitors) are passive electronic components with capacitance value and operating voltage. They are distinguished from other capacitors by their construction, electrolyte, and anode material. Aluminum electrolytic capacitors are commonly used starting from very small capacitance values to very large ones, and have the highest capacitance values of any type of capacitor.The EEU-FC1A391B is a type of aluminum electrolytic capacitor. It has a rated capacitance of 391 μF (0.391 F), a rated voltage of 50 V, and a temperature range from -25 degrees Celsius to 105 degrees Celsius. It has a ripple current of 434mA and an operating temperature of up to 85 degrees Celsius. It has a size of 16mm x 25mm and is encased in a radial-lead, epoxy-sealed plastic case.The EEU-FC1A391B is typically used for high-frequency power supplies, high-grade audio equipment, and high-voltage DC power supply applications. It is also suitable for high-speed switching applications and power-switching circuits in consumer electronics, automotive electronics, industrial control circuits, and more.The EEU-FC1A391B works on the principle of electrolysis. This type of capacitor contains two metal electrodes, one being aluminum and the other a paper, cloth, or fiber-based material soaked in an electrolyte. When the voltage is applied, an electric field is formed between the two electrodes, allowing electrons to flow from one electrode to the other. This process generates a layer of oxide on the aluminum electrode, increasing the capacitance between the two electrodes. The higher the applied voltage, the more oxide will build up on the aluminum electrode and therefore the higher the capacitance.The EEU-FC1A391B also has a non-polarized structure which means that it does not have a “+” or “-” terminal. It can be used in circuits that are subject to changes in polarities. This makes it particularly useful in automotive, industrial, and consumer electronics applications.The EEU-FC1A391B is a highly reliable device with its plastic casing providing additional protection from physical shock and vibration. It is also resistant to oxidation and contamination and can be used in environments where corrosive chemicals might be present.Aluminum electrolytic capacitors offer a wide range of advantages compared to other types of capacitors. They are ideal for high-voltage applications, such as power supplies and automotive electronics, due to their high capacitance, low cost, and robustness. Additionally, their non-polarized construction means that they are suitable for circuits that are often subject to polarity reversals. The EEU-FC1A391B is a great example of these capabilities and is a reliable choice for high-voltage applications.

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