ALS81U912NP350

Polarization:	Polar
Package / Case:	Radial, Can - Screw Terminals
Mounting Type:	Chassis Mount
Surface Mount Land Size:	--
Height - Seated (Max):	5.827" (148.00mm)
Size / Dimension:	3.031" Dia (77.00mm)
Lead Spacing:	1.252" (31.80mm)
Impedance:	16 mOhms
Ripple Current @ High Frequency:	22.6A @ 10kHz
Ripple Current @ Low Frequency:	16A @ 100Hz
Applications:	General Purpose
Ratings:	--
Series:	ALS81
Operating Temperature:	-40°C ~ 105°C
Lifetime @ Temp.:	2000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	25 mOhm @ 100Hz
Voltage - Rated:	350V
Tolerance:	±20%
Capacitance:	9100µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

Aluminum electrolytic capacitors (AECs) are passive two-terminal electronic components consisting of two aluminum foil electrodes separated by an electrolytic dielectric material. Aluminum electrolytic capacitors are used in a variety of applications due to their ability to store large amounts of energy, their low costs, and their long product life. One of the most widely used aluminum electrolytic capacitors is the ALS81U912NP350. In this article, we will discuss the application field and working principle of the ALS81U912NP350.

Application Field

The ALS81U912NP350 is an aluminum electrolytic capacitor with a maximum operating voltage of 250VDC and a capacitance range of 12 to 1000uf. This capacitor has a higher voltage rating and larger capacitance than many other aluminum electrolytic capacitors, making it suitable for many applications. One of the most common applications for the ALS81U912NP350 is in power factor correction. Power factor correction is the process of improving the efficiency of electrical power systems by controlling the voltage and current so that the phase angle between them is minimized. This process is important in power systems because it reduces losses and reduces the load on generators. The use of the ALS81U912NP350 in power factor correction also helps to reduce the total cost of ownership of the power system.The ALS81U912NP350 is also widely used in lighting applications. The capacitor has a high voltage rating and large capacitance, which makes it ideal for stabilizing the power supply in LED lamps or other types of lighting. In addition, the capacitor is also used in audio equipment, including amplifiers and loudspeakers, to help reduce noise and improve sound quality.

Working Principle

The ALS81U912NP350 is an aluminum electrolytic capacitor with two separate layers of dielectric material separated by an anode and a cathode. The anode is a thin, positive layer and the cathode is a thicker negative layer. When a voltage is applied to the capacitor, the charge is transferred from the anode to the cathode through the electrolytic dielectric. This process takes place in stages and the time required for the entire process is known as the capacitor\'s “charging time”. The capacitors also have a “leakage current” which is the current that continually flows through the capacitor even when no voltage is applied. This current is caused by the deterioration of the electrolytic dielectric over time. The capacitance of the capacitor decreases as the leakage current increases, meaning that the capacitor needs to be replaced more often.

Conclusion

The ALS81U912NP350 is a widely used aluminum electrolytic capacitor. It has a high voltage rating and large capacitance, making it suitable for power factor correction, lighting, and audio applications. It is also characterized by its low price and long product life. The working principle of the ALS81U912NP350 is based on the transfer of charge from the anode to the cathode through two layers of dielectric material. The capacitor also has a leakage current, which is caused by the deterioration of the electrolytic dielectric over time.

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