T521D476M025AHE065

Operating Temperature:	-55°C ~ 105°C
Features:	General Purpose
Ratings:	--
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 @ 105°C
Series:	KO-CAP® T521
ESR (Equivalent Series Resistance):	65 mOhm @ 100kHz
Type:	Molded
Voltage - Rated:	25V
Tolerance:	±20%
Capacitance:	47µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Tantalum-Polymer CapacitorsTantalum-polymer capacitors, often abbreviated to TPSMCs, are an increasingly popular type of capacitor used in applications requiring significant storage of electrical energy. They are made by combining a porous tantalum core with a polymer electrolyte, usually an epoxy resin, to create a cylindrical, anode-cathode capacitor. T521D476M025AHE065 is a specific type of this capacitor, commonly employed in ultracapacitors.The most important benefits of using these capacitors is the high energy density they offer. This is one of the main reasons they are so often used in ultra-capacitors. Tantalum-Polymer capacitors are also far less prone to failure due to their increased temperature and pressure tolerance. These devices are also much better for applications necessitating long operational times, as TPSMCs remain relatively stable even through numerous charge cycles.The working principle of the T521D476M025AHE065 is based on the charge effects on polymers. When the electrical charge on the capacitor is increased, the polymer tissues expand and contract quickly due to the electrostatic force, creating a rapid charge and discharge cycle. In this way, large amounts of energy can be stored in a short amount of time.The main application of the T521D476M025AHE065 is in ultra-high-voltage circuits and energy storage. These capacitors have found widespread use in military systems, hybrids cars, and solar energy storage systems. As they are able to store much more energy than traditional capacitors, TPSMCs have improved the efficiency of high-voltage DC and AC applications. As the applications of T521D476M025AHE065 are mostly in high-voltage systems and energy storage, they must be designed accordingly, often using multiple capacitors in parallel or in series with other components such as diode rectifiers and voltage regulators. Additionally, it is important to note that these capacitors may require a certain testing and certification, due to their usage in applications with higher voltages.In conclusion, TPSMCs offer several advantages for applications requiring significant storage of electrical energy due to their high energy density, long operational times, and enhanced temperature and pressure tolerance. The T521D476M025AHE065 specifically is widely used in ultra-capacitors and military systems, as well as in hybrid cars, solar energy storage systems, and other high-voltage applications. While they require specific testing and certification for higher-voltage applications, their unique qualities make them an ideal choice for most energy-storage needs.

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