B43851F9476M000

Operating Temperature:	-25°C ~ 105°C
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.063" (27.00mm)
Size / Dimension:	0.630" Dia (16.00mm)
Lead Spacing:	0.295" (7.50mm)
Ripple Current @ Low Frequency:	196mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Polarization:	Polar
Series:	B43851
Lifetime @ Temp.:	3000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	4 Ohm @ 120Hz
Voltage - Rated:	400V
Tolerance:	±20%
Capacitance:	47µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are types of capacitors that use porous anode and cathode materials that are soaked in an electrolyte. These capacitors are widely used in electronic circuits for their good electrical properties, long life, reliability and relatively low cost. The B43851F9476M000 is an example of an aluminum electrolytic capacitor which comes in an SMD package and has a rated voltage of 25V.

Application Field

The B43851F9476M000 aluminum electrolytic capacitor is mainly used in power supply and voltage regulators circuits. The capacitor is also used in computers, mobile phones and other electronic infrastructure to store energy and act as a filter for unwanted signal frequencies. This capacitor is also used to provide oscillation and signal conditioning for voltage regulators where the output voltage needs to be filtered.

Working Principle

The B43851F9476M000 aluminum electrolytic capacitor is basically a two-terminal device that works on the same principles as other capacitors. It utilizes the principle of capacitance and has two metal plates (anode and cathode) that are separated by a dielectric material, which is the electrolyte. When a voltage is applied, electrical energy is stored in the capacitor, causing a current to flow between the anode and the cathode. As the current continues to flow, the surface oxide layer of the cathode grows and stores additional charges. The larger the surface oxide layer becomes, the more charge it will store and the higher capacitance it will have. The B43851F9476M000 aluminum electrolytic capacitor also has a self-healing mechanism, where if there are any mechanical defects or electrical breakdown occurs, the capacitor can still work as usual without any damage. This self-healing mechanism is caused by the formation of a new oxide layer at the cathode when ever the existing oxide layer is damaged.

Advantages

Aluminum electrolytic capacitors, such as the B43851F9476M000, have many advantages over other types of capacitors. The main advantage of using aluminum electrolytic capacitors is their high capacitance. They also have a long life compared to other types of capacitors, and are also very reliable.Another advantage of using aluminum electrolytic capacitors is their low cost. They are also very compact and lightweight, making them ideal for applications where space is limited. They are also very resistant to vibrations, temperatures, and other environmental factors.

Disadvantages

Although aluminum electrolytic capacitors have many advantages, they also have some disadvantages. The main disadvantage is their limited frequency range, which limits their use in high frequency applications. Additionally, aluminum electrolytic capacitors are not suitable for applications where high currents are required. Also, the capacitance of an aluminum electrolytic capacitor decreases over time due to the depletion of the electrolyte, and this decrease can be accelerated by environmental factors such as temperature and humidity.

Conclusion

The B43851F9476M000 aluminum electrolytic capacitor is an economical and reliable choice for power supply and voltage regulator applications. It provides good electrical properties, long life, and low cost, and is also suitable for applications where space is limited. Although the capacitor has some disadvantages, such as a limited frequency range and capacitance decrease over time, it is still very widely used in electronics applications.

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