T491A474M025AT4280 Allicdata Electronics
Allicdata Part #:

T491A474M025AT4280-ND

Manufacturer Part#:

T491A474M025AT4280

Price: $ 0.05
Product Category:

Capacitors

Manufacturer: KEMET
Short Description: CAP TANT .470UF 25.0V
More Detail: 0.47µF Molded Tantalum Capacitors 25V 1206 (3216 M...
DataSheet: T491A474M025AT4280 datasheetT491A474M025AT4280 Datasheet/PDF
Quantity: 1000
2000 +: $ 0.04533
Stock 1000Can Ship Immediately
$ 0.05
Specifications
Series: T491
Packaging: Tape & Reel (TR) 
Part Status: Active
Capacitance: 0.47µF
Tolerance: ±20%
Voltage - Rated: 25V
Type: Molded
ESR (Equivalent Series Resistance): 13 Ohm
Operating Temperature: -55°C ~ 125°C
Lifetime @ Temp.: 2000 Hrs @ 125°C
Mounting Type: Surface Mount
Package / Case: 1206 (3216 Metric)
Size / Dimension: 0.126" L x 0.063" W (3.20mm x 1.60mm)
Height - Seated (Max): 0.071" (1.80mm)
Lead Spacing: --
Manufacturer Size Code: A
Ratings: --
Features: General Purpose
Failure Rate: --
Description

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T491A474M025AT4280 tantalum capacitors are through hole axial leaded wet electrolytic capacitors. They are generally used in surface mount and radial leaded applications such as motherboards, telecom/datacom, industrial and medical electronics. The capacitors come in three standard body sizes: 5mm, 7mm, and 10mm.

T491A474M025AT4280 tantalum capacitors consist of a tantalum anode, cathode, and electrically insulated layer, and an electrolyte. The anode is made from a small pellet of tantalum and the cathode is made from manganese dioxide. These components are encased in a plastic body with two legs, one for each electrode. The outer shell of the capacitor is typically made of a non-conductive and corrosion-resistant material. The capacitor is then filled with an electrolyte, which allows electric current to flow through the capacitor.

The capacitor’s working principle is based on the process of electrolysis, which is driven by the electric current that travels through the electrical field within the capacitor. When current passes through the capacitor, the electrolyte undergoes electrochemical reactions that result in the formation of an electrochemical double layer (EDL), which is made up of positive and negative ions. The EDL acts as an insulator, preventing further current from passing through, but allowing any existing current to be stored for a certain period of time. As the voltage is applied to the capacitor, the EDL increases or decreases, respectively, allowing more or less current to pass through the capacitor’s terminals.

The main use of T491A474M025AT4280 tantalum capacitors is in power management. This is because they have a low equivalent series resistance, which helps minimise voltage drop, as well as a high capacitance per cubic volume, which helps reduce board space and reduce the needed number of capacitors. Tantalum capacitors are also very reliable, as they are resistant to corrosion and other environmental conditions, and can handle large surges of current. These features make them invaluable in a variety of industrial and medical applications.

T491A474M025AT4280 tantalum capacitors are used in a variety of different applications. They are commonly found in computers, automotive systems and audio equipment due to their low equivalent series resistance and low cost. They are also used in military and aerospace applications, as they are able to withstand high temperatures and resist voltage surges due to their EDL. In addition, they are used in medical devices, such as pacemakers and defibrillators, as they are low-loss and are capable of delivering current very quickly.

In conclusion, T491A474M025AT4280 tantalum capacitors are highly reliable, low loss and cost-effective capacitors that are used in a variety of applications. They have a low equivalent series resistance and high capacitance per cubic volume that make them ideal for power management applications, while their EDL and corrosion resistance make them suitable for military, aerospace and medical applications. Overall, T491A474M025AT4280 tantalum capacitors are a versatile and reliable component for a wide range of applications.

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

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