Series:	KO-CAP® T540
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	68µF
Tolerance:	±20%
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

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Tantalum – Polymer Capacitors: T540B686M004CH87107280 Application Field and Working Principle

Tantalum – polymer capacitors are a type of SMD (surface-mount device) capacitor with a polarity marking. They are constructed from tantalum powder pressed and sintered into a pellet, and use a conductive polymer manganese dioxide as the electrolyte. They are typically used for low voltage electrical applications and have a wide range of characteristics, including high capacitance value and low ESR. T540B686M004CH87107280 is a type of tantalum – polymer capacitor which is used in a wide range of applications, including automotive and industrial electronics, computer and networking equipment, and communication systems. It has an operating temperature range between -55 to +105 degrees Celsius and is considered to be a “stability capacitor” due to its low ESR, high capacitance value and lower voltage drop under load than other capacitor types. This type of tantalum – polymer capacitor is also commonly used for decoupling of DC-DC converters, power regulation circuits and audio output stages. Due to its low ESR, it is also beneficial for providing high current capability in high frequency circuits. T540B686M004CH87107280 offers several advantages over other types of capacitors, including its significantly high capacitance value, higher DC voltage rating and improved temperature characteristics. Its high capacitance value makes it suitable for use in a variety of applications, while its low ESR improves performance in high frequency circuits. In addition, its high DC voltage rating allows it to provide an additional level of safety to the circuit design. The working principle of the T540B686M004CH87107280 capacitor is relatively simple. It is constructed from a number of layers of polymers and metallized tantalum pellets separated by electrolytes. When electric current passes through from one terminal to the other, it creates a “charge polarization” which accumulates energy in the form of an electrostatic field between the negative and positive electrodes. This creates the capacitor’s ability to store electric charge, allowing it to function as a source of current when needed. Overall, the T540B686M004CH87107280 tantalum – polymer capacitor is an excellent choice for use in low voltage electronic applications. Its higher capacitance value and low ESR, as well as its improved temperature characteristics and higher DC voltage rating, make it suitable for a wide range of applications. In addition, its simple working principle makes it easy to understand and use, and its improved safety features offer added protection for circuitry.

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