450BXW39MEFC16X20

Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.866" (22.00mm)
Size / Dimension:	0.630" Dia (16.00mm)
Lead Spacing:	0.295" (7.50mm)
Ripple Current @ High Frequency:	1A @ 100kHz
Ripple Current @ Low Frequency:	400mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	BXW
Operating Temperature:	-40°C ~ 105°C
Lifetime @ Temp.:	10000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	450V
Tolerance:	±20%
Capacitance:	39µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum electrolytic capacitors

Aluminum electrolytic capacitors, or just electrolytic capacitors, are electrical components that use aluminum as their electrolyte. They are used in a wide variety of applications, from automotive to audio/visual devices, due to their high reliability, stability, and good performance. The 450BXW39MEFC16X20 is one such aluminum electrolytic capacitor, and its specific application field and working principle are discussed below.

Application Field

Aluminum electrolytic capacitors have numerous industrial applications, including automotive, audio/visual, consumer electronics, and defense. The 450BXW39MEFC16X20 is no exception, as it is a general-purpose electrolytic capacitor with a voltage rating of 16V and a capacitance of 40-50µF (microfarads). Being a general-purpose capacitor, it can be safely used in a variety of applications.

Working Principle

Aluminum electrolytic capacitors operate on a unique principle. They consist of two metallic plates (the anode and the cathode) separated by an electrolytic layer. The anode is made up of an electrode which is immersed in an electrolyte. When a voltage is applied across the plates, electrons from the cathode flow through the electrolyte and react with the ions in the electrolyte to form a layer of aluminum oxide on the anode.This layer of aluminum oxide acts as an insulating layer, blocking the flow of electrons across the anode and thus forming a capacitance between the two plates. With the 450BXW39MEFC16X20, for instance, a voltage of 16V will result in a capacitance of 40-50µF between the two plates.

Advantages

Aluminum electrolytic capacitors are widely used because of their key advantages. These include:

• High reliability - the aluminum oxide layer acts as a very reliable insulating layer, making these capacitors some of the most reliable ones available.
• Good performance - due to their design, aluminum electrolytic capacitors have a high capacitance and low losses, making them good performers in a wide range of applications.
• Small form factor - aluminum electrolytic capacitors have very small dimensions, making them a great choice for portable and space-limited applications.
• Low cost - aluminum electrolytic capacitors are relatively cheaper compared to other types of capacitors.

Disadvantages

Despite their many advantages, aluminum electrolytic capacitors do have some drawbacks. These include:

• High equivalent series resistance (ESR) - compared to ceramic capacitors, aluminum electrolytic capacitors have a relatively high ESR, which can cause increased heat dissipation and power loss in some applications.
• Limited voltage range - aluminum electrolytic capacitors are limited to a maximum operating voltage of around 250V, making them unsuitable for high-voltage applications.
• Short life span - due to their aluminum oxide layer, aluminum electrolytic capacitors are not as long-lasting as other types of capacitors.

Conclusion

The 450BXW39MEFC16X20 is an aluminum electrolytic capacitor that is highly reliable, stable, and good performing in a variety of applications. It has a capacitance of 40-50µF with a voltage rating of 16V. Its advantages include good performance, high reliability, small form factor, and low cost. On the other hand, it does have some drawbacks such as a high ESR, a limited voltage range, and a short life span.

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