T551B397M015AT4251

Operating Temperature:	-55°C ~ 125°C
Features:	General Purpose
Ratings:	--
Manufacturer Size Code:	B
Lead Spacing:	--
Height - Seated (Max):	--
Size / Dimension:	0.312" Dia x 0.641" L (7.92mm x 16.28mm)
Package / Case:	Axial, Can
Mounting Type:	Through Hole
Lifetime @ Temp.:	2000 Hrs @ 85°C
Series:	T551
ESR (Equivalent Series Resistance):	90 mOhm
Type:	Hermetically Sealed
Voltage - Rated:	15V
Tolerance:	±20%
Capacitance:	390µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tray

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Tantalum - Polymer CapacitorsTantalum-polymer capacitors can help in several power applications in which a high-capacity capacitor is needed. These capacitors are typically made from a mixture of tantalum and a polymer electrolyte, and they are used in various electronic and electrical systems, such as audio and video equipment, appliances, and the like.The term “tantalum” is derived from the Latin “tantalus”, which means “shackle”. This reference comes from the high melting point of the metal, which makes it very difficult to melt and is also used as a catalyst in many chemical reactions. Tantalum is a very resistant material and resists corrosion, making it a great choice for use in capacitors.The tantalum-polymer capacitors, such as the T551B397M015AT4251, are typically made from a combination of tantalum and a polymer electrolyte. The tantalum is typically an anode, or positive, electrode and the polymer electrolyte is often a cathode, or negative, electrode. The electrolyte allows for the flow of ions and electrons between the two electrodes. This creates a storage of energy in the form of a charge and a discharge path for the capacitor to dissipate heat and voltage.When a voltage is applied to the capacitor, the electrons are attracted to the anode and the ions are attracted to the cathode. This creates a positive and a negative charge, causing the capacitor to ‘charge’. When the voltage is removed the electrons and the ions recombine and the capacitor is discharged. This cycle can be repeated as many times as is necessary.The T551B397M015AT4251 is a positive temperature coefficient (PTC) type of capacitor. This means that it will increase its capacitance with increasing temperature. This makes it ideal for temperature-sensitive applications where a large capacitance is required. It also has a high capacitance per unit volume, which makes it well suited for applications in which space is at a premium.Tantalum-polymer capacitors are used in a wide range of different applications. They can be found in mobile phones and laptop computers, in medical devices and modern automobiles, in televisions and audio equipment, and much more.In conclusion, the T551B397M015AT4251 tantalum-polymer capacitor is a great choice for power applications in which a high-capacity capacitor is needed. It has a high capacitance per unit volume, a high temperature coefficient, and is resistant to corrosion. It is well suited for use in temperaturesensitive applications and for applications in which space is at a premium.

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