T540D226K0CT8505

Lifetime @ Temp.:	2000 Hrs @ 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
Series:	KO-CAP® T540
Operating Temperature:	-55°C ~ 125°C
Type:	Molded
Tolerance:	±10%
Moisture Sensitivity Level (MSL):	--
Capacitance:	22µF
Lead Free Status / RoHS Status:	--
Part Status:	Active

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Tantalum - Polymer CapacitorsTantalum-polymer capacitors, including the T540D226K0CT8505, are a unique form of micro capacitor. While common electrolytic capacitors are composed of aluminum and an electrolyte, the tantalum capacitor consists of a thin layer of tantallum which is sandwiched between two thin layers of polymer. This tantalum-polymer capacitor is able to hold a greater charge than its conventional capacitor counterparts, while at the same time reducing the size of the capacitor. The T540D226K0CT8505 capacitor has a diameter of 8.5mm and a length of 5.4mm. It has a nominal capacitance of 226K and a maximum voltage rating of 16V. Its small size and large capacitance makes it ideal for use in space constrained design situations, such as those found in cellular phones, medical devices, and laptop computers.The structure of the tantalum-polymer capacitor is fairly simple. The core of the capacitor is composed of the two layers of conductive polymer and a thin layer of tantalum sandwiched between them. This tantalum layer must be kept at a low temperature for the capacitor to work correctly. The polymer layers function as the dielectric and provide the insulation necessary to store the charge.The working principle of the tantalum-polymer capacitor is also relatively simple. When a voltage is applied to one end of the capacitor, the charge is stored within the capacitor and causes a positive charge to build up on one side of the delictric while inducing a negative charge on the other side. The charge stored in the capacitor will remain until the capacitor is discharged when the voltage is removed or until the capacitor is subjected to a reverse voltage.One of the greatest advantages of the tantalum-polymer capacitor is its stability and reliability. Compared to other types of capacitors, a tantalum-polymer capacitor is extremely reliable and its performance will not degrade over time as quickly. It is also able to handle more current than some other types of capacitors.Overall, the tantalum-polymer capacitor, such as the T540D226K0CT8505, is a great solution for many applications. Its small size, large capacitance, and reliable performance make it a great choice for situations in which space and stability are a concern. It is certainly one of the most versatile capacitors available.

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