385USC120MEFC25X25

Series:	USC
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	120µF
Tolerance:	±20%
Voltage - Rated:	385V
ESR (Equivalent Series Resistance):	--
Lifetime @ Temp.:	3000 Hrs @ 85°C
Operating Temperature:	-25°C ~ 85°C
Polarization:	Polar
Ratings:	--
Applications:	General Purpose
Ripple Current @ Low Frequency:	1.02A @ 120Hz
Ripple Current @ High Frequency:	1.428A @ 10kHz
Lead Spacing:	0.394" (10.00mm)
Size / Dimension:	0.984" Dia (25.00mm)
Height - Seated (Max):	1.063" (27.00mm)
Surface Mount Land Size:	--
Mounting Type:	Through Hole
Package / Case:	Radial, Can - Snap-In

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are used in a wide range of electronic devices due to their ability to safely store a charge for as long as necessary, regardless of the environment. They are most commonly used in low frequency and power supply applications, such as in TVs, computers, and radios. The type of capacitor referenced in the title, the 385USC120MEFC25X25, is a high-quality, low-leakage, and high-temperature aluminum electrolytic capacitor, and is well-suited for high reliability or low temperatures applications.

The 385USC120MEFC25X25 is an aluminum electrolytic capacitor with a rated voltage of 125VDC (DC) and an equivalent series resistance (ESR) of 0.122Ω. It is comprised of an anode and a cathode made of aluminum foil and separated by a thin membrane layer. This membrane layer acts as a porous insulation between the two metal foils and is impregnated with an electrolyte solution. This setup creates two separate electrical fields separating the positive and negative electrodes, allowing the capacitor to store a charge. With an increase in temperature the ESR increases, and therefore its application is limited to relatively low temperatures.

The 385USC120MEFC25X25 is a non-polarized aluminum electrolytic capacitor, meaning it does not matter which side of the capacitor is inserted into the circuit. This type of capacitor is capable of tolerating higher voltage and offers improved temperature stability than its polarized counterparts. Due to its low ESR and high capacitance, it is ideal for applications that require improved ripple performance and noise capacitance. It is also capable of providing higher capacitance values than other types of capacitors and, for this reason, is often used in filtering applications and power conditioning circuits.

The application field of the 385USC120MEFC25X25 aluminum electrolytic capacitors extends to include radio frequency (RF) circuits, audio and video circuits, and timing circuits. It is well-suited for use in amplifiers and filters, both analog and digital, that are found in radios and other communications equipment. Its high capacitance also makes it suitable to be used in high-current pulse power applications like electric actuators and motor controls. Other applications include automation devices, power supplies, electric circuits, computing equipment, and even aerospace and maritime applications.

The working principle of the 385USC120MEFC25X25 aluminum electrolytic capacitor is based on the physical concept of capacitance, which is the ability of a material to store charge. When a voltage is applied to the capacitor, it creates an electric field which causes charge to accumulate on the electrodes, called the anode and the cathode. Oppositely charged ions from within the electrolyte solution are then attracted to the electrodes in order to neutralize the electric field and maintain an equilibrium. This process is known as capacitance and it is what allows the capacitor to store a charge for as long as necessary.

In summary, the 385USC120MEFC25X25 aluminum electrolytic capacitor is a high-quality, low-leakage, and high-temperature capacitor ideal for high reliability and low-temperature applications. It has a high capacitance value, making it suitable for filtering, ripple performance, noise capacitance, and high-current pulse power applications. The capacitor is non-polarized, allowing one side of the capacitor to be inserted into the circuit. Finally, the working principle of the capacitor is based on capacitance, the ability of a material to store charge on its electrodes.

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