F921C225MPA

Series:	F92
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	2.2µF
Tolerance:	±20%
Voltage - Rated:	16V
Type:	Molded
ESR (Equivalent Series Resistance):	12 Ohm
Operating Temperature:	-55°C ~ 125°C
Lifetime @ Temp.:	--
Mounting Type:	Surface Mount
Package / Case:	0805 (2012 Metric)
Size / Dimension:	0.079" L x 0.049" W (2.00mm x 1.25mm)
Height - Seated (Max):	0.039" (1.00mm)
Lead Spacing:	--
Manufacturer Size Code:	P
Features:	General Purpose
Failure Rate:	--

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Tantalum Capacitors: F921C225MPA application field and working principle

Tantalum capacitors are widely used for their small size, good temperature characteristics and low equivalent series resistance. The F921C225MPA is a surface mount-type solid tantalum capacitor, primarily used for power decoupling and filtering. This article will discuss the application field and working principle of the F921C225MPA.

Application Field

The F921C225MPA is generally used in power decoupling and filtering applications. It is most suitable for power decoupling circuits because of its ability to produce low equivalent series resistance. This capacitor type is also used for signal filtering to optimize power supply bypassing and electrical noise reduction.The F921C225MPA is typically used in applications such as automotive electronics, battery powered equipment, frequency synthesizers, and robotics. In general, the F921C225MPA is ideal for low-profile discrete applications, such as replacement of electrolytic capacitors in miniaturized equipment.

Working Principle

The F921C225MPA is a type of solid tantalum capacitor. The working principle of the F921C225MPA is based on the fact that two nonmetallic layers on opposite surfaces of a tantalum anode make up an electrical double layer. When an electrical charging voltage is applied to the capacitor, the electrical double layer stores the electrical energy by polarization in the form of an electric field.The porous tantalum anode is typically filled with an electrolytic solution, and the layers of the electrolyte form a property called “Kirkendall effect”. The Kirkendall effect increases the frequency response of the device, making it more suitable for high-frequency applications.The F921C225MPA capacitor has an advantage over traditional capacitor designs due to the fact that it produces low equivalent series resistance. This low equivalent series resistance reduces energy loss from the capacitor and reduces AC ripple. In addition, this capacitor can handle high pulsed currents, making it suitable for use in high-power applications.The capacitance values of the F921C225MPA are usually in the range of 1uF to 100uF. The voltage ratings of the capacitors can range from 2 to 50 volts, depending on the manufacturer and product type.

Conclusion

The F921C225MPA is a surface mount type tantalum capacitor ideal for power decoupling, filtering, and high-power applications. This capacitor type offers good temperature characteristics and a low equivalent series resistance, making it suitable for a variety of electronic applications. By understanding the application field and working principle of this capacitor type, it is possible to select the right component for specific designs.

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