T550B506K025AT Allicdata Electronics
Allicdata Part #:

T550B506K025AT-ND

Manufacturer Part#:

T550B506K025AT

Price: $ 24.34
Product Category:

Capacitors

Manufacturer: KEMET
Short Description: CAP TANT POLY 50UF 25V AXIAL
More Detail: 50µF Hermetically Sealed Tantalum Polymer Capacito...
DataSheet: T550B506K025AT datasheetT550B506K025AT Datasheet/PDF
Quantity: 1000
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
20 +: $ 22.12150
Stock 1000Can Ship Immediately
$ 24.34
Specifications
Ratings: --
Features: General Purpose
Series: T550
Packaging: Bulk 
Lead Free Status / RoHS Status: --
Part Status: Active
Moisture Sensitivity Level (MSL): --
Capacitance: 50µF
Tolerance: ±10%
Voltage - Rated: 25V
Type: Hermetically Sealed
ESR (Equivalent Series Resistance): --
Operating Temperature: -55°C ~ 105°C
Lifetime @ Temp.: 2000 Hrs @ 85°C
Mounting Type: Through Hole
Package / Case: Axial
Size / Dimension: 0.281" Dia x 0.641" L (7.14mm x 16.28mm)
Height - Seated (Max): --
Lead Spacing: --
Manufacturer Size Code: B
Description

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Tantalum-Polymer Capacitors, like the T550B506K025AT model, are very useful components within the electrical engineering industry. These components are commonly used for different applications due to their remarkable performance and reliability.It is important to understand what these capacitors are, their construction, and their common applications prior to attempting to use one of these parts.

What is a Tantalum-Polymer Capacitor?

A tantalum-polymer capacitor is a type of electrolytic capacitor. An electrolytic capacitor is a device intended to store electrical energy. It is composed of two metal plates which are immersed in a liquid electrolyte which acts as the dielectric. The electrolyte between the plates helps enhance the capacitance due to the increased dielectric constant and the reduced distance between the plates. A tantalum-polymer capacitor uses a solid polymer to replace the liquid electrolyte. This offers several advantages, such as better performance under extreme environmental conditions or reduced failure rates. The tantalum-polymer capacitor also offers a higher level of tolerance due to the solid dielectric.

Construction of a Tantalum-Polymer Capacitor

The T550B506K025AT capacitor is composed of a metal plate and a dielectric layer. A voltage is applied to the metal plate to create an electric field in the dielectric layer. The electrical energy is then stored in the capacitor as electric charge. The metal plate serves as the positive side of the capacitor while the dielectric layer serves as the negative side.

The metal plate is made of either tantalum or niobium and is then covered with a dielectric layer made of polymers. The tantalum or niobium is covered with a thin layer of oxide. This oxide layer acts as an insulator between the metal plate and the dielectric. The thickness of the oxide layer is crucial for the capacitor’s performance, as a thicker layer would yield a greater capacitance.

The dielectric layer is composed of a polymer material that is able to store the electrical charges. Polymers offer the most uniform and stable dielectric properties whereas liquid electrolyte dielectrics tend to be more sensitive to environmental conditions. This makes the tantalum-polymer capacitor more reliable than the liquid electrolytic capacitor.

Application Field and Working Principle of a Tantalum-Polymer Capacitor

Tantalum-polymer capacitors are usually used in high-performance applications, such as avionics, military, and medical systems. The reason for this is due to their superior performance and reliability. Their wide range of working voltages, from 3V to 100V, make them suitable for a variety of applications. The T550B506K025AT capacitor is rated for 10V and rated for 2.5μF. This makes it well suited for power conversion applications.

The working principle of a tantalum-polymer capacitor is fairly simple. When a voltage is applied to the metal plate, an electric field is created in the dielectric layer which stores electrical energy. This capacitance is defined by the ability of the dielectric to hold an electric field on its surface. The higher the applied voltage, the greater the electric field which can be stored in the capacitor.

In addition, these capacitors have very low ESR (equivalent series resistance) and ESL (equivalent series inductance), making them suitable for use in high-frequency circuits. This makes these components very versatile, allowing them to be used in a wide range of electronic applications.

Conclusion

The T550B506K025AT capacitor is an excellent example of a tantalum-polymer capacitor. It offers superior performance and reliability compared to traditional electrolytic capacitors. This type of capacitor is suitable for a variety of high-performance applications, such as avionics, military, and medical systems. The working principle of the tantalum-polymer capacitor is based on the ability of the dielectric to store an electric field, allowing it to store electrical energy. These components are highly versatile, making them a great choice for a variety of electronic applications.

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

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