T540D156K035CH8610

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:	35V
Tolerance:	±10%
Moisture Sensitivity Level (MSL):	--
Capacitance:	15µF
Lead Free Status / RoHS Status:	--
Part Status:	Active

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Introduction to Tantalum - Polymer Capacitors

Tantalum-polymer capacitors are one of the most recently developed capacitors and have been growing steadily in popularity. These capacitors offer a range of advantages over other capacitors, such as low electric leakage, excellent temperature and frequency characteristics, and a high capacitance-to-volume ratio. They are often used in mobile phones, computers, and other electronic devices due to their relatively small physical size and reliability. In this article, we will be examining the T540D156K035CH8610 model in particular, exploring its application fields and working principle.

What is a Tantalum-Polymer Capacitor?

A tantalum-polymer capacitor is a hybrid device that combines the best of both worlds, the low electrical leakage of Tantalum and the robustness of Polymer. It is made up of a layer of tantalum powder, which serves as the capacitor’s dielectric, and a self-healing material, usually a polymer, which insulates and protects. These capacitors are available in both polarized and non-polarized versions.

Applications and Uses of Tantalum-Polymer Capacitors

The T540D156K035CH8610 model of tantalum-polymer capacitor is mostly used for high power dc-dc conversion and switching applications. These capacitors are ideal for applications where fast transient response and high ripple current capacities are necessary. They can also be used in memory decoupling and filter circuits.

Working Principle of Tantalum-Polymer Capacitors

Tantalum-polymer capacitors work on the basis of placing a wetting layer of polymer between a conductive tantalum foil and a conductive foil. This layer of polymer acts as a dielectric, allowing electrons to pass between the two conductive foils while trapping some of the charge, creating a capacitor. This capacitor can be used to store or pass electrical energy, just like any other capacitor.

Conclusion

The T540D156K035CH8610 tantalum-polymer capacitor is a recent development in the field of capacitors. It offers the best of both worlds, combining the low electrical leakage of Tantalum with the robustness of Polymer. This type of capacitor is used mainly for high power dc-dc conversion and switching applications, and its working principle relies on creating a capacitor by placing a wetting layer of polymer between two conductive foils. Due to its reliability and small size, it has become increasingly popular in mobile phones, computers, and other electronic devices.

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