T540D336K020BH8505

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):	100 mOhm @ 100kHz
Type:	Molded
Voltage - Rated:	20V
Tolerance:	±10%
Moisture Sensitivity Level (MSL):	--
Capacitance:	33µF
Lead Free Status / RoHS Status:	--
Part Status:	Active

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Tantalum - Polymer Capacitors

Tantalum - Polymer capacitors, also known as polymer electrolyte capacitors, are an essential component in many types of electronic devices and circuits. With their low ESR ratings and very low leakage properties, they’re ideal for high-frequency operations, offering a wide range of options for a variety of applications.The T540D336K020BH8505 is a type of polymer capacitor recognized for its excellent electrical properties, low ESR ratings, and high breakdown voltage. It can be used in circuits for energy storage, high frequency switches, and improving the electrical characteristics within a circuit. This type of capacitor also offers a high temperature and humidity range—very useful for applications such as automotive circuits.

Overview

The T540D336K020BH8505 has a wide variety of capacitance values ranging from 10μF to 330μF, with a voltage range of 6.3V to 35V. This makes it an ideal choice for high-frequency applications which require the highest levels of accuracy. It also offers excellent stability and high reliability.The capacitor is made up of a tantalum-polymer film, which serves as the dielectric in the device. This is sandwiched between two identical internal electrodes, and it’s also encapsulated in a PET plastic material. It’s moisture-resistant and can handle temperatures between -55 and +125°C.Another key advantage of the T540D336K020BH8505 is its very low ESR ratings. This means it can handle high frequency operations, even at temperatures as low as -55°C. Moreover, its low ESR will reduce the heat generated by the device, thus increasing its reliability and life expectancy.

Application fields

Tantalum-polymer capacitors are mostly used in energy storage and switching applications. For example, the T540D336K020BH8505 has the capability of handling a wide voltage range, making it a great fit for charger ICs in battery packs and low-voltage applications.Moreover, because of its low ESR ratings, this type of capacitors are also ideal for use in high-frequency DC-DC converters, such as those used in switching power supplies, creating a low-loss power stage thanks to their excellent stability and low heat dissipation.Finally, the T540D336K020BH8505 is also well-suited to data processing applications, particularly where very high switching frequencies are required. The likes of Blu-ray players, set-top boxes, and network protocol controllers are some of the most common examples here.

Working Principle

Tantalum-polymer capacitors work in a very similar way to normal electrolytic capacitors. Their dielectric is composed of a thin layer of tantalum-polymer, which acts as an insulating material when electric current is flowing through the device.The two external electrodes each have an oxide layer which helps form the insulating barrier between them. When a voltage is applied, the oxide layer breaks down and allows current to flow to the other side. The dielectric film then stops any further current flow.However, the key difference between this type of capacitor and other types of electrolytic capacitors is the construction of the electrodes and the dielectric. The electrodes of these capacitors are very small and their construction is much more intricate—which is why they are able to handle high frequency operations and low loss power stages.When it comes to selecting the right capacitor, the T540D336K020BH8505 is proving to be a popular choice, thanks to its excellent features and reliability. Its wide variety of capacitance values, high temperature and humidity range, low ESR ratings, and high breakdown voltage make it ideal for use in a variety of applications. Whether it’s energy storage, high frequency switching, or improving the performance of processing chips, the T540D336K020BH8505 will be able to deliver.

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