Allicdata Part #: | T550B476M050AT4251-ND |
Manufacturer Part#: |
T550B476M050AT4251 |
Price: | $ 26.21 |
Product Category: | Capacitors |
Manufacturer: | KEMET |
Short Description: | CAP TANT POLY 47UF 50V AXIAL |
More Detail: | 47µF Hermetically Sealed Tantalum Polymer Capacito... |
DataSheet: | T550B476M050AT4251 Datasheet/PDF |
Quantity: | 1000 |
Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
20 +: | $ 23.82440 |
Specifications
Series: | T550 |
Packaging: | Bulk |
Lead Free Status / RoHS Status: | -- |
Part Status: | Active |
Moisture Sensitivity Level (MSL): | -- |
Capacitance: | 47µF |
Tolerance: | ±20% |
Voltage - Rated: | 50V |
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 |
Ratings: | -- |
Features: | General Purpose |
Description
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Tantalum - Polymer CapacitorsTantalum-polymer capacitors are a relatively new form of capacitors that have been developed to meet the demand for higher capacitance-volume ratio, higher up-time and longer life cycles for capacitors. T550B476M050AT4251 is an example of these tantalum-polymer capacitors, which has an enhanced temperature range, excellent stability over -55°C to +85°C and extremely low levels of self-induced heating.The structure of a tantalum-polymer capacitor consists of a tantalum anode and a conductive polymer as the cathode. The anode is typically formed from powdered tantalum and a insulating oxide layer is formed on the surface of the anode as a result of anodic oxidation. The anode is also formed with an electrolyte which is enclosed within the oxide layer. The electrolyte penetrates into the oxide layer of the anode from the outside and acts as the electrolyte for the device.The cathode of a tantalum-polymer capacitor is made up of a conductive polymer which is generally a mixture of polyaniline, polypyrrole, and polythiophene. This conductive polymer provides a high conductivity and superior stability over time and temperature. The conductivity of the polymer is typically in the range of few dozen mS/cm. The polymer cathode is also formed with an electrolyte which acts as a separator between the anode and cathode.The working principle of a tantalum-polymer capacitor is based on the principle of electrolytic capacitors where the voltage across the capacitor is determined by the concentration of the electrolyte between the two electrodes and the amount of current flowing through the device. When an electric field is applied between the anode and cathode of the device, it causes an ion movement within the electrolyte which creates an electric capacitance between the two electrodes.The T550B476M050AT4251 is a high temperature, high capacitance, tantalum-polymer capacitor designed to meet the growing demand for high up-time and long life cycles for capacitors in a wide range of applications. This device is capable of operated in temperatures up to +125°C and is highly stable at temperatures of -55°C to +85°C. With its high capacitance rating, it is ideal for use in decoupling applications, power supplies, and other high voltage applications, such as automotive and avionics applications.In conclusion, the T550B476M050AT4251 tantalum-polymer capacitor is a highly stable, high temperature, long life device suitable for use in a wide range of applications. Its high capacitance rating, temperature range, and stability make it an ideal choice for use in high voltage and decoupling applications.The specific data is subject to PDF, and the above content is for reference
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