T540D687K003DH8505WAFL

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:	3V
Tolerance:	±10%
Capacitance:	680µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tray - Waffle

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Tantalum - Polymer Capacitors are an important part of modern electronic circuits. They are often used in applications where minimum size and low ESR (equivalent series resistance) are required. The T540D687K003DH8505WAFL is a special-purpose polymer capacitor that has unique features and benefits that make it ideal for certain applications. The T540D687K003DH8505WAFL capacitor is a surface mount polymer capacitor that has an organic solution to the familiar Tantalum style electrolyte structure. In its standard form this capacitor has a case diameter of 0.5” and a maximum case height of 0.275”. It has a capacitance of 0.687μF, a capacitance tolerance of 5%, and an ESR of 2.0mΩ. This makes it suitable for a wide range of applications. In terms of its application field, the T540D687K003DH8505WAFL capacitor is well suited for high-frequency switch mode power supply (SMPS) applications. The low ESR and small size allow for increased efficiency and a reduced part count in the circuit. It is also suitable for high-temperature, low-noise or low-leakage applications. It can be used as a general-purpose decoupling or filter capacitor in sensitive RF electronics, or as a smoothing filter capacitor in analogue and DC/DC converters. The working principle of the T540D687K003DH8505WAFL capacitor is based on its construction. The capacitor’s electrodes are fabricated from a composite material consisting of an activated carbon powder suspended in an electrolyte solution. The electrolyte solution is made of an organically modified Tantalum salt and an organic solvent. The organic solvent itself is a low-viscosity, non-volatile liquid. The electrodes are separated by a porous dielectric layer that contains the organic electrolyte solution. This layer acts as an insulating barrier and prevents electrical leakage between the two electrodes. When a voltage is applied across the electrodes, an electric field is formed and a current flows through the dielectric layer. This current creates a charge within the capacitor, thus storing energy. When the voltage is removed, the capacitor will discharge the stored energy. In summary, the T540D687K003DH8505WAFL is a high-performance surface-mount polymer capacitor that is suitable for a variety of applications. Its small size and low ESR make it an ideal choice for high-frequency switches and power supplies. Its working principle, based on an organic electrolyte solution, makes it ideal for low-leakage, high-temperature, and high-frequency applications.

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