Series:	KO-CAP® T540
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	68µF
Tolerance:	±10%
Voltage - Rated:	4V
Type:	Molded
ESR (Equivalent Series Resistance):	80 mOhm @ 100kHz
Operating Temperature:	-55°C ~ 125°C
Lifetime @ Temp.:	2000 Hrs @ 125°C
Mounting Type:	Surface Mount
Package / Case:	1411 (3528 Metric)
Size / Dimension:	0.138" L x 0.110" W (3.50mm x 2.80mm)
Height - Seated (Max):	0.083" (2.10mm)
Lead Spacing:	--
Manufacturer Size Code:	B
Ratings:	COTS
Features:	High Reliability

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

T540B686K004DH86107280 is a tantalum-polymer capacitor, a capacitor that features both the attributes of a tantalum capacitor and a polymer capacitor. Unlike other capacitors, the tantalum-polymer combination offers a number of advantages for power system design for a number of applications. In this article, we will discuss the applications and working principles of the T540B686K004DH86107280 capacitor.

Applications of T540B686K004DH86107280

In portable electronic design, the T540B686K004DH86107280 caps are often used to supplant multi-package, multi-dielectric discrete Capacitors. The advantage lies in the reduced external package area, saving a significant amount of board space. This can be especially useful in cell phone and digital camera designs, as well as other, smaller devices. As devices are often built as thin as possible, the chip-scale footprint of the capacitors can really make a difference. Additionally, the chip-scale package also contributes to an improved performance.The robust nature of the capacitor also makes it useful in higher temperature applications. Many capacitor technologies are prone to perform poorly after a certain amount of thermals cycles, but the T540B686K004DH86107280 maintains stability under the extreme heating conditions often found in engine compartments. The high temperature stability makes them perfect for automobile, military, and other application that require the use of heat-resistant parts. Commonly, the T540B686K004DH86107280 is paired with other capacitor types, such as Ceramic Capacitors and high-capacitance Electrolytic Capacitors, to create hybrid capacitors. This combination is often used for energy storage and for decoupling DC-DC supplies. It also is useful for power filtering and DC-DC conversion, as it offers a low ESR and high capacitance.

Working Principle of T540B686K004DH86107280

The T540B686K004DH86107280 capacitor is made out of a mixture of tantalum and polymer materials, which give it unique properties compared to other capacitors. The tantalum is the central conductor, while the polymer substrate provides a dielectric layer. The combination of the two materials creates a dielectric layer with a high-volume surface area. This means that it can store more charge than traditional capacitor technologies, and is more resistant to decreases in performance due to age and heat.The combination of these two materials also leads to reduced ESR, which is a figure used to quantify the total resistance of a capacitor. The resistance of a capacitor can limit its performance, so the lower the ESR, the more efficient the capacitor will be. The T540B686K004DH86107280\'s reduced ESR makes it an ideal choice for many applications, as it can improve power management efficiency. Additionally, the capacitor is also notable for its low leakage current. This means that the capacitor can maintain its charge over long periods of time. This trait is especially beneficial in industrial applications, where a steady charge may be needed across long periods of time.

Conclusion

The T540B686K004DH86107280 capacitor is a tantalum-polymer capacitor that offers a range of advantages that other capacitors cannot. It is an ideal choice for applications where board space is limited, or when temperature stability or high capacitance is necessary. It also has a low ESR and low leakage current, making it discharge slowly and in a very dependable manner. All these properties make it a great choice for a number of power systems designs, ranging from portable electronic devices to automobile and industrial applications.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description