AFK476M35D16T-F Capacitors

Series:	AFK
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	47µF
Tolerance:	±20%
Voltage - Rated:	35V
ESR (Equivalent Series Resistance):	360 mOhm @ 100kHz
Lifetime @ Temp.:	2000 Hrs @ 105°C
Operating Temperature:	-55°C ~ 105°C
Polarization:	Polar
Ratings:	AEC-Q200
Applications:	Automotive, Bypass, Decoupling
Ripple Current @ Low Frequency:	180mA @ 120Hz
Ripple Current @ High Frequency:	240mA @ 100kHz
Impedance:	360 mOhms
Lead Spacing:	--
Size / Dimension:	0.248" Dia (6.30mm)
Height - Seated (Max):	0.240" (6.10mm)
Surface Mount Land Size:	0.260" L x 0.307" W (6.60mm x 7.80mm)
Mounting Type:	Surface Mount
Package / Case:	Radial, Can - SMD

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are widely used in both analog and digital circuits due to their relative low cost, large capacitance and long life span. The AFK476M35D16T-F is an aluminum electrolytic capacitor, typically found in a SMD (surface mount device) package.

AFK476M35D16T-F Application Field

The AFK476M35D16T-F is an aluminum electrolytic capacitor with a rated voltage of 250 VAC, making it suitable for high-voltage applications such as motor drives, inverters, filtered power supplies and other high-voltage applications. It is also suitable for applications where a high capacitance value is required in a relatively small package or where large temperature fluctuations are present.

AFK476M35D16T-F Working Principle

The AFK476M35D16T-F is an aluminum electrolytic capacitor which consists of two aluminum plates separated by a nonconducting dielectric material such as aluminum oxide or tantalum pentoxide. The plates are separated by a diaphragm or separator which allows for electrical forces to flow between the plates. When a voltage is applied between the plates of the capacitor, an electric field is created which is responsible for electrolytic transfer of ions between the two plates of the electrolyte. This creates an electric charge across the two plates and a stored energy field. This energy allows the capacitor to act as an energy storage device and is released when the capacitors energy is discharged.The AFK476M35D16T-F is also often referred to as a polarised capacitor. This means that the direction of current flow must be observed when connecting to the capacitor. This is because of part of the diaphragm being thicker, creating a higher resistance to current flow in the opposite direction and preventing incorrect connection.

Advantages Of The AFK476M35D16T-F

Aside from their relatively low cost and ability to work under high-voltages, aluminium electrolytic capacitors offer some other advantages. These include:

• High capacitance in a relatively small package
• Long life span
• The ability to withstand extreme temperature fluctuations
• Low leakage current
• High insulation resistance

Disadvantages Of The AFK476M35D16T-F

Like all capacitors, aluminium electrolytic capacitors come with some disadvantages. These include:

• Poor high frequency performance
• Tolerance levels can vary between manufacturers
• Can cause noise in some applications due to the charge stored in the capacitor
• Smaller physical size can limit capacitance
• Voltage spikes can cause heat buildup in the capacitor

Conclusion

The AFK476M35D16T-F is an aluminium electrolytic capacitor, typically found in SMD (surface mount device) packaging. Due to its relatively low-cost, long life span and ability to work under high-voltage, it is increasingly favoured for applications such as motor drives, inverters and filtered power supplies. The disadvantage of the AFK476M35D16T-F is that it can cause noise in some applications due to the charge being stored in the capacitor. Though overall it is a reliable and cost-effective solution for many applications, care must be taken when selecting the right capacitor to ensure it meets the application’s requirements.

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