420BXW33MEFR12.5X25

Ratings:	--
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.063" (27.00mm)
Size / Dimension:	0.492" Dia (12.50mm)
Lead Spacing:	0.197" (5.00mm)
Ripple Current @ High Frequency:	875mA @ 100kHz
Ripple Current @ Low Frequency:	350mA @ 120Hz
Applications:	General Purpose
Series:	BXW
Polarization:	Polar
Operating Temperature:	-40°C ~ 105°C
Lifetime @ Temp.:	10000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	420V
Tolerance:	±20%
Capacitance:	33µF
Lead Free Status / RoHS Status:	--
Part Status:	Active

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors (AECs) are a type of capacitor that utilizes a thin oxide layer on the surface of an aluminum anode. AECs are divided into two main categories – polarized and unpolarized capacitors. The 420BXW33MEFR12.5X25 is an aluminum electrolytic capacitor.

Application Field

AECs have a wide range of applications, including power supplies, converters, AC/DC rectifiers, and low-frequency filters. They are commonly used in EMI/RFI filters and noise suppression applications, such as audio systems and power supplies. The 420BXW33MEFR12.5X25 is an AEC suited for automotive and industrial applications.

Design and Construction

AECs are constructed with a cylinder of anodised aluminum. The aluminum anode is wound around the cylinder with a permanent, dielectric electrolyte layer between the aluminum and the capacitor terminal. The electrolyte layer is formed after the capacitor is charged initially. The capacitor is then sealed in a plastic case which helps to protect it from environmental damage. The 420BXW33MEFR12.5X25 has a cylindrical design made from anodized aluminum and is sealed in a plastic case.

Working Principle

AECs work by storing energy in the form of a charge on a pair of electrodes. When a voltage is applied, the charge is transferred from one electrode to the other. Since the charge in AECs is stored in the form of a thin layer of oxide, the more charge that is stored, the thicker the oxide layer becomes. As the oxide layer thickens, more energy is required to move the charge from one electrode to the other, resulting in more energy being stored in the capacitors. The 420BXW33MEFR12.5X25 has a low impedance and is able to store a large amount of energy.

Advantages of Aluminum Electrolytic Capacitors

AECs offer a number of advantages over other types of capacitors, such as lower equivalent series resistance (ESR), higher capacitance values, and higher ripple currents. Since AECs store energy in the form of a thin layer of oxide, they are also less prone to failure than other types of capacitors. The 420BXW33MEFR12.5X25 has a long life expectancy and is able to handle large amounts of current.

Conclusion

The 420BXW33MEFR12.5X25 is an aluminum electrolytic capacitor that is designed for use in automotive and industrial applications. It is constructed with a cylinder of anodized aluminum and is sealed in a plastic case. It works by storing energy in the form of a charge on a pair of electrodes. AECs have a number of advantages over other types of capacitors, such as lower ESR, higher capacitance values, and higher ripple current ratings.

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