AFK107M25X16T-F

Polarization:	Polar
Package / Case:	Radial, Can - SMD
Mounting Type:	Surface Mount
Surface Mount Land Size:	0.260" L x 0.307" W (6.60mm x 7.80mm)
Height - Seated (Max):	0.323" (8.20mm)
Size / Dimension:	0.248" Dia (6.30mm)
Lead Spacing:	--
Impedance:	340 mOhms
Ripple Current @ High Frequency:	280mA @ 100kHz
Ripple Current @ Low Frequency:	210mA @ 120Hz
Applications:	Automotive, Bypass, Decoupling
Ratings:	AEC-Q200
Series:	AFK
Operating Temperature:	-55°C ~ 105°C
Lifetime @ Temp.:	2000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	340 mOhm @ 100kHz
Voltage - Rated:	25V
Tolerance:	±20%
Capacitance:	100µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction to Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are a type of very commonly used electrochemical capacitors. They are essential components in many electronic circuits, usually to act as a buffer between two stages of circuits or for decoupling purposes. As their name implies, these capacitors are composed of two aluminum poles, one of which is connected to the anode and the other to the cathode. They come in various shapes, sizes and forms, and are often referred to by their part numbers, such as AFK107M25X16T-F.

Typical Applications of Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are mainly used in power supplies, audio equipment, digital circuits, communication systems, LED lighting systems, motor controllers, and more. They are typically used to stabilize power supplies to ensure that power is supplied without any voltage spikes or drops. Additionally, their ability to filter out DC components in many analog circuits makes them excellent filter capacitors for audio application. Similarly, they can help in eliminating spikes and noise from signals travelling between stages of digital circuits.

Advantages of Using Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors offer a number of advantages compared to other types of capacitors. They have a very low equivalent series resistance (ESR) which allows for efficient energy storage and release in shorter timeframes. Furthermore, they have a very low leakage current of less than 5 micro-amperes, which is why they are often chosen for audio equipment and for low-power circuits with low noise requirements. Finally, they are known to have a very good temperature coefficient which allows for stable performance even in extreme temperatures.

The Working Principle of Aluminum Electrolytic Capacitors

The AFK107M25X16T-F aluminum electrolytic capacitor works by forming a polarized layer between an anode and a cathode. This layer acts as a dielectric which is used to store energy. When a voltage is applied across these components, the electric field formed by the positive and negative layers causes electrons to flow onto the dielectric surface. The amount of energy stored by the capacitor is directly proportional to the amount of surface area of the dielectric layer. Therefore, aluminum electrolytic capacitors can be used to store large amounts of energy in a small form factor.

Disadvantages of Aluminum Electrolytic Capacitors

One of the main disadvantages of aluminum electrolytic capacitors is their limited lifetime. Over time, the aqueous electrolyte used in these capacitors evaporates, causing the capacitance of the capacitor to decrease and eventually fail. Additionally, these capacitors are not suitable for use at frequencies above a few hundred megahertz, as they cannot effectively store energy for long at such high frequencies. Finally, due to the polarized nature of these capacitors, they require careful selection and hookup procedures when used in circuits.

Conclusion

The AFK107M25X16T-F aluminum electrolytic capacitor is one of many types of electrolytic capacitors available in the market. They are typically used for low-noise and high-temperature applications, however, their lifetime is limited and they have a high ESR. As a result, they should be used with caution in any circuits with demands that exceed their capabilities. Nonetheless, due to their small form factor, they continue to be an important part of many electronic systems.

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