400QXW33MEFC12.5X20

Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.866" (22.00mm)
Size / Dimension:	0.492" Dia (12.50mm)
Lead Spacing:	0.197" (5.00mm)
Applications:	General Purpose
Ratings:	--
Series:	QXW
Operating Temperature:	-40°C ~ 105°C
Lifetime @ Temp.:	2000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	400V
Tolerance:	±20%
Capacitance:	33µF
Lead Free Status / RoHS Status:	--
Part Status:	Active

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are one of the most commonly used types of capacitors. They are used for a wide variety of applications, such as filtering, energy storage, power supply stabilization, and signal decoupling. The specific capacitor we will be exploring in this article is the 400QXW33MEFC12.5X20. Let\'s explore its application field and working principle.

Application Field

Aluminum electrolytic capacitors are most commonly used in power supplies. They have the ability to store very large amounts of energy, which makes them well suited for this application. They are also used in the motor control of DC power motors, where they provide stable voltage output and help to reduce the heat generated by the motor. They also find used in audio/visual equipment, telecommunications, computing, and consumer electronics.

Working Principle

The 400QXW33MEFC12.5X20 aluminum electrolytic capacitor works on the electromagnetic principle. It consists of two electrode plates and a dielectric material between them. When an electric voltage is applied, the electrode plates will attract each other, causing a charge to build up on each plate. This produces an electric field between the plates which stores energy in the form of an electrical charge.The main issue with aluminum electrolytic capacitors is that they are prone to failure if the voltages applied to them exceed their rated voltage. This is due to the dielectric material between the plates breaking down, causing the voltage across the capacitor to increase above the rated voltage and leading to failure. To prevent this, these capacitors have a safety vent, which allows the pressure to be released if the voltage exceeds the rated value.

Conclusion

The 400QXW33MEFC12.5X20 is a type of aluminum electrolytic capacitor. It is often used in power supplies, motor control, audio/visual equipment, telecommunications, computing, and consumer electronics. It operates on the electromagnetic principle, using two electrode plates and a dielectric material between them. However, they are prone to failure if the applied voltages exceed their rated value, so it is important to ensure that the rated voltage is not exceeded.

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