381LX182M180A452

Polarization:	Polar
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.850" (47.00mm)
Size / Dimension:	1.378" Dia (35.00mm)
Lead Spacing:	0.394" (10.00mm)
Ripple Current @ High Frequency:	3.8A @ 20kHz
Ripple Current @ Low Frequency:	2.7A @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	381LX
Operating Temperature:	-40°C ~ 105°C
Lifetime @ Temp.:	3000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	180V
Tolerance:	±20%
Capacitance:	1800µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction to Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors (also known as electrolytic capacitors) are passive electronic components used to store and release electrical energy. It is the most widely used type of capacitor, due to its relatively large capacitance per volume. Aluminum electrolytic capacitors are composed of two aluminum foil electrodes, separated by an electrolyte containing oxidized aluminum deposition (oxide). They are classified according to voltage, capacitance, and package size and finish.

381LX182M180A452 Application Field and Working Principle

381LX182M180A452 is a type of aluminum electrolytic capacitor with an operating temperature range of -40 °C to +105 °C. It is mainly used in switching power supplies, electronic ballasts, AC adapters, telecommunication systems, automotive electronics, and consumer products. In terms of working principles, aluminum electrolytic capacitors use the electric charge storage principle of electrochemistry. When electricity is applied, the electrolyte in the capacitor reacts to the anode foil and forms an oxide film on its surface. This oxide film acts as an insulator and prevents further oxidation thereby increasing the capacitance. The opposite happens when the capacitor is discharged and the oxide film is returned to its original form, releasing the electrical energy it is storing. The specific parameters of the381LX182M180A452 are as follows:• Rated Capacitance: 182μF• Capacitance Tolerance: ±20%• Rated Voltage: 16V (DC)• Leakage Current: 0.03CV or 3μA whichever is greater• ESR: 2.2Ω @ 100kHz, 1V• Operating Temperature Range: -40°C to +105°C • Maximum Surge Voltage: -40°C ≤ T ≤ +20°C = 20% rated voltage, +20°C ≤ T ≤ +105°C = 10% rated voltage• Diameter: 8.2 mm• Height: 17.5 mm• Lead Type: Through-hole• Lead Lengths: 4.2 mm (standard)

Conclusion

Aluminum electrolytic capacitors are widely used in many electronic applications and the381LX182M180A452 is a popular type of aluminum electrolytic capacitor. It has an operating temperature range of -40 °C to +105 °C and a rated capacitance of 182μF. Its operating principle is based on electrochemical reactions of the electrolyte in the capacitor with the anode foil which forms an oxide film on the surface. This oxide film increases capacitance and acts as an insulator when charged.

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