EEU-FC1E271B

Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.532" (13.50mm)
Size / Dimension:	0.394" Dia (10.00mm)
Lead Spacing:	0.197" (5.00mm)
Impedance:	90 mOhms
Ripple Current @ High Frequency:	755mA @ 100kHz
Ripple Current @ Low Frequency:	490.8mA @ 120Hz
Applications:	Automotive
Ratings:	AEC-Q200
Series:	FC
Operating Temperature:	-55°C ~ 105°C
Lifetime @ Temp.:	3000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	25V
Tolerance:	±20%
Capacitance:	270µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are widely used in many areas of electronics for their superior electrical properties. They are used in power supplies, radio transmitters, audio and video players, and other applications. Of these, the most common type is the EEU-FC1E271B. This article will cover the application field and working principle of this type of capacitor.The EEU-FC1E271B is an aluminum electrolytic capacitor. It is typically used in applications where a large capacitance is needed and where the capacitance needs to stay stable over time. It is usually used in circuits that require high current and voltage, such as DC-DC converters, switching power supplies, and motor control circuits. It is also ideal for use in circuits that require energy storage and high ripple current capability.The EEU-FC1E271B is a polarized capacitor, meaning that the positive and negative terminals need to be connected the correct way in order for it to function properly. It is constructed out of two pieces of aluminum foil separated by paper soaked in a liquid electrolyte. The aluminum foil acts as the electrodes, the electrolyte acts as an insulator, and the paper acts as the separator.Working Principle:When the EEU-FC1E271B is exposed to a DC voltage, the positive and negative ions in the electrolyte move towards the corresponding positive and negative electrodes. This transferred charge creates an anodic and cathodic polarization on the aluminum foil which is the basis for the capacitive action of the capacitor. When a current passes through the capacitor, the anodic and cathodic layers attract and repel each other in a process called charge balancing or edge leakage. This phenomenon is what creates such high capacity and high ripple current capability in the EEU-FC1E271B.The EEU-FC1E271B is also designed with special features that make it suitable for use in both low and high voltage applications. It has a lower internal resistance than other electrolytic capacitors, and has a longer expected lifetime due to its low voltage coefficient and heat resistance. It also has an excellent temperature compensation and power cycle capability.The EEU-FC1E271B has applications in areas that require high energy storage, high ripple current capability, as well as low and high voltage applications. Its superior electrical properties make it an ideal choice for power supplies, audio and video players, and motor control circuits.

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