T540D477M2R5CH8605WAFL

Operating Temperature:	-55°C ~ 125°C
Features:	High Reliability
Ratings:	COTS
Manufacturer Size Code:	D
Lead Spacing:	--
Height - Seated (Max):	0.122" (3.10mm)
Size / Dimension:	0.287" L x 0.169" W (7.30mm x 4.30mm)
Package / Case:	2917 (7343 Metric)
Mounting Type:	Surface Mount
Lifetime @ Temp.:	2000 Hrs @ 125°C
Series:	KO-CAP® T540
ESR (Equivalent Series Resistance):	40 mOhm @ 100kHz
Type:	Molded
Voltage - Rated:	2.5V
Tolerance:	±20%
Capacitance:	470µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tray - Waffle

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Tantalum - Polymer CapacitorsTantalum – polymer capacitors are an advanced type of capacitor which are usually used in various industries since many years for some critical applications. These types of capacitors, which basically comprises of tantalum powder and a special type of organic polymer called Polypropylene film. With their smaller size, wide range of values and higher capacitance, this type of capacitor proves to be the best choice for applications in need of high reliability, voltage and long lifetimes.Here, the usage of T540D477M2R5CH8605WAFL tantalum- polymer capacitor will be discussed in detail.Application FieldT540D477M2R5CH8605WAFL capacitors are mainly used in power and RF applications, where they operate efficiently at high temperatures. These are commonly and effectively used in many electronic systems such as power electronics, DC/DC converters and other types of power supplies. These capacitors are also frequently used in frequency downtuners and other radio-frequency circuits. These capacitors are also used in mobile phone handsets and base stations to provide a part of the DC blocking filter.At the same time, due to their outstanding temperature characteristics and high reliability, this type of capacitor works with great efficiency in both digital and analog circuits. In addition, since these are basically miniaturized components, they can also be found in high-density circuits.Overall, the T540D477M2R5CH8605WAFL capacitor can be used in various other applications and systems, such as medical instruments, car audio systems, automobiles, digital audio, communication systems and many other industries.Working PrincipleT540D477M2R5CH8605WAFL capacitors are constructed in such a way that they combine an electrolyte based on an organic polymer with a powder consisting of finely ground tantalum. A bonding agent such as titanium is used to ensure a very strong and stable bond between the two parts. This bond is further strengthened by applying a pressure of 150-200MPa to the components.The functioning of these capacitors is based on the principle that when a voltage is applied across the capacitor, charges start flowing through the electrolyte and the tantalum continuously alternates between the positive and negative states until the equilibrium is achieved. This equilibrium state is known as a dielectric.Once the capacitor reaches the dielectric state, current does not flow through it anymore. The capacitance value of the capacitor is determined by its construction and the amount of space between two distinguishable surfaces.ConclusionT540D477M2R5CH8605WAFL tantalum-polymer capacitor is an advanced form of capacitor which finds its application in various industries due to its higher capacitance and better efficiency features. Its working is based on the principle that when a voltage is applied across it, charges start flowing through the electrolyte and the tantalum until the equilibrium is achieved. Overall, these capacitors are the best choice for applications in need of higher reliability, voltage and long lifetimes.

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