T540B476K006CH86107280

Operating Temperature:	-55°C ~ 125°C
Features:	High Reliability
Ratings:	COTS
Manufacturer Size Code:	B
Lead Spacing:	--
Height - Seated (Max):	0.083" (2.10mm)
Size / Dimension:	0.138" L x 0.110" W (3.50mm x 2.80mm)
Package / Case:	1411 (3528 Metric)
Mounting Type:	Surface Mount
Lifetime @ Temp.:	2000 Hrs @ 125°C
Series:	KO-CAP® T540
ESR (Equivalent Series Resistance):	80 mOhm @ 100kHz
Type:	Molded
Voltage - Rated:	6.3V
Tolerance:	±10%
Capacitance:	47µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Tantalum - Polymer CapacitorsT540B476K006CH86107280 Capacitors are a class of high performing, large valued tantalum capacitors designed for storing and delivering electrical energy. Their design combines the favorable electrical behavior of a wet tantalum electrolyte along with the small physical size and low cost afforded by a solid polymer dielectric. These capacitors are used in a variety of designs, especially in portable electronics, communications, and medical devices.The most common type of T540B476K006CH86107280 capacitor is a wet tantalum capacitor. Its construction utilizes an oxide film that acts as an electrolytic capacitor. The oxide film is situated within a metal canister with a metal lid. The two poles of the capacitor are connected to the capacitors metal terminals. When exposed to an electrostatic field, the oxide layer becomes polarized, allowing for the storage and release of electrical energy, similar to a traditional capacitor.The advantages of using a wet tantalum capacitor over a similar-sized tantalum electrolytic capacitor, include: a much lower equivalent series resistance (ESR) allowing for lower equivalent series inductance (ESL) and higher ripple current; a much lower temperature coefficient, meaning that the capacitance remains relatively constant from -55°C to +125°C; a much higher dielectric strength, which in turn results in a much higher capacitance than that of an electrolytic capacitor. They also have a much lower self discharge, providing greater stability and longer life when applied in circuits.In addition to wet tantalum capacitors, there are also solid polymer tantalum capacitors. They are designed as a cost-effective and miniature capacitor utilizing a tantalum anode and a dielectric of solid polymer material. Their construction is enclosed in a metal canister which makes them resistant to humidity, temperature, and shock. Unlike their wet tantalum counterparts, however, solid polymer tantalum capacitors have an operating voltage of only 6 to 10 Vdc and must be connected in a circuit in order to use. Their outstanding characteristics include: low equivalent series resistance, allowing for lower inductance and higher ripple current; extremely high capacitance-to-volume ratio; high frequency response; low ESR with wide temperature range; excellent stability with time; excellent vibration and shock resistance; higher rated wattage than wet tantalum capacitors and low leakage; better solution in low voltage and high temperature applications.The principal application areas of T540B476K006CH86107280 capacitors are in portable digital electronics such as mobile phones, tablets, smartwatchs and their accessories, laptop computers and peripherals. Other common uses include power supplies, switching power supplies, DC-DC converters and any application that requires efficient storage of electrical energy.The working principle behind T540B476K006CH86107280 capacitors is that when two conductive surfaces are separated by an insulating medium (dielectric) and exposed to an electric field, a large electric charge can be stored in that insulating medium. When the capacitor is charged, it stores the energy until it is drained, before repeating the cycle. It is this basic property that enables the capacitor to distribute electrical energy throughout a circuit very quickly.In conclusion, T540B476K006CH86107280 capacitors are an excellent choice for both the cost conscious and performance seeking engineer. They offer the performance of a significant wet tantalum capacitor with the added bonus of being much more compact in size. While they do have their own limitations, such as higher operating voltage requirement and lower frequency response, they are ideal for a specific set of application areas and are suitable for a variety of PCB designs, making them a great choice for any power management design.

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