EEU-FC1E121H

Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.591" (15.00mm)
Size / Dimension:	0.248" Dia (6.30mm)
Lead Spacing:	0.098" (2.50mm)
Impedance:	250 mOhms
Ripple Current @ High Frequency:	400mA @ 100kHz
Ripple Current @ Low Frequency:	260mA @ 120Hz
Applications:	Automotive
Ratings:	AEC-Q200
Series:	FC
Operating Temperature:	-55°C ~ 105°C
Lifetime @ Temp.:	1000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	25V
Tolerance:	±20%
Capacitance:	120µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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Aluminum electrolytic capacitors are an essential piece to a variety of electronic circuits and components. The EEU-FC1E121H is a specific type of aluminum electrolytic capacitor. This capacitor is typically used for applications that deal with intermediate levels of energy storage. It is commonly used for direct current applications in power supplies, motor drives, LED inverters, audio amplifiers, and digital cameras.When handling a capacitor of this type, it is important to take extreme caution when handling it as the electrolyte contained within the capacitor can be hazardous when exposed. This capacitor is designed to be polarized, meaning the positive and negative terminals must be connected as indicated on the capacitor. It must not be connected backwards, otherwise the electrolyte may leak or the capacitor may become damaged.The EEU-FC1E121H capacitor is a single, non-solid aluminum electrolytic capacitor. It is constructed with two stainless steel plates placed opposite each other separated by a film between. This film serves as a dielectric to hold the electrical charge generated when current runs through the capacitor. At the center is a roll of aluminum foil and an electrolyte is found between the aluminum and stainless steel plates.The EEU-FC1E121H has a capacitance of 100µF/20V and is rated for direct current operation. Its maximum capacitance tolerance is ±20%, and its rated ripple current is 100 to 150mA. Its operating temperature range is also quite wide, from -25¢XC to +85¢XC. It is also resistant to temperature shocks, humidity, and vibration, and is sealed so that no leakage can occur.The working principle of this aluminum electrolytic capacitor is that when current passes through the capacitor, the stainless steel plates become charged. The positive charge attracts negatively charged ions from the electrolyte to the negative plate, and the negative charge attracts positively charged ions to the positive plate. This creates a potential difference between the two plates and the capacitor stores electrical energy.When the capacitor is then “unloaded”, or the current is turned off, the stored charge remains in the capacitor. This charge will attract an opposite charge when it is exposed to another circuit or component. This process is called “discharging” and helps to transfer energy from one component to another. This makes it a useful device for a variety of applications.In conclusion, the EEU-FC1E121H aluminum electrolytic capacitor is an essential component used in a variety of electronic systems and circuits. It is polarized, meaning the positive and negative terminals have to be connected as indicated. Due to its wide operating temperature range and its ability to withstand shocks, humidity, and vibration, it is used in a variety of applications. Its working principle is that when current runs through the capacitor, a potential difference between the two plates is created, and the capacitor then stores electrical energy. Its charge can then be used to transfer energy from one component to another.

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