Allicdata Part #: | 478-9686-ND |
Manufacturer Part#: |
TWAE478M025CBEZ0700 |
Price: | $ 40.61 |
Product Category: | Capacitors |
Manufacturer: | AVX Corporation |
Short Description: | CAP TANT 4700UF 20% 25V AXIAL |
More Detail: | 4700µF Hermetically Sealed Tantalum Capacitors 25V... |
DataSheet: | TWAE478M025CBEZ0700 Datasheet/PDF |
Quantity: | 1000 |
Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
1 +: | $ 36.91800 |
10 +: | $ 34.61040 |
100 +: | $ 31.86380 |
Operating Temperature: | -55°C ~ 125°C |
Failure Rate: | -- |
Features: | High Reliability, Wet Tantalum |
Ratings: | COTS |
Manufacturer Size Code: | E |
Lead Spacing: | -- |
Height - Seated (Max): | -- |
Size / Dimension: | 0.375" Dia x 1.062" L (9.52mm x 26.97mm) |
Package / Case: | Axial |
Mounting Type: | Through Hole |
Lifetime @ Temp.: | -- |
Series: | TWA |
ESR (Equivalent Series Resistance): | 500 mOhm |
Type: | Hermetically Sealed |
Voltage - Rated: | 25V |
Tolerance: | ±20% |
Capacitance: | 4700µF |
Moisture Sensitivity Level (MSL): | -- |
Part Status: | Active |
Lead Free Status / RoHS Status: | -- |
Packaging: | Tray |
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Tantalum Capacitors
A tantalum capacitor is a type of electrolytic capacitor a passive electronic component consisting of a pellet of tantalum metal as an anode, covered by an insulating oxide film as the dielectric, surrounded by conductive material as a cathode. Having larger capacitance in a similar size to other components in the same family, as well as much lower equivalent series resistance, makes tantalum capacitors a favorite choice in the electronics industry. The TWAE478M025CBEZ0700 is a tantalum capacitor from Vishay Intertechnology, a well-known manufacturer in the field, and has a wide range of applications and applications fields.
Applications
A TWAE478M025CBEZ0700 typically has a capacitance of 470μF and a voltage rating of 25VDC, due to which its major application lies in the realm of decoupling and filtering. This particular capacitor can be used to set the DC bias voltage in a system, remove residual ripple in power supply circuits, build timing circuits or act as delay elements. It is frequent to see the capacitor employed in switching power supplies, process control systems, automotive navigation systems and high speed data transfer systems. Due to its low ESR, the capacitor also helps in improvement of power supply efficiency.
Working Principle
A Tantalum capacitor works in the same principles of a standard electrolytic capacitor. Every capacitor essentially stores electrical energy in a dielectric medium. When a voltage is applied across the capacitor terminals, an electrical field is created which will attract and hold opposite charges on either end of the dielectric medium. This creates an electric field opposing the current and thus reducing the amplitude of the input voltage.
It is the composition of the dielectric that differentiates between different types of capacitors. In a Tantalum capacitor, the dielectric is afilm of tantalum pentoxide merged with a metal layer. Due to the high permittivity of the metal layer and unique atomic structure of the tantalum pentoxide, the capacitor can demonstrate both high capacitance, and low loss properties. Unlike general purpose all-electrolytic capacitors, Tantalum capacitors are much more efficient both in terms of stability and operation.
Size and Power Capacity
The TWAE478M025CBEZ0700 comes in the case size code of E. This implies that the length and width of this capacitor is equal to or less than 6mm and 5mm respectively, and it is less than 2mm in thickness. This small size of the capacitor and the high capacitance-to-volume ratio makes it a go-to choice for many applications which require small size and a large charge capacity. The working temperature of this capacitor is -55°C to +125°C and the rated ripple current of the capacitor is 1.3A.
Robustness and Reliability
Tantalum capacitors are appreciated due to their robustness and reliability. The temperature coefficient of this capacitor is roughly -20ppm/°C, and it is built to withstand overvoltage consistently for long periods of time. Moreover, when compared to other components in the same family, the ESR of Tantalum capacitors is much lower. Its efficiency makes it preferable for sensitive components such as transistors, filters and amplifiers.
Conclusion
The TWAE478M025CBEZ0700 a specific type of Tantalum capacitor from Vishay Intertechnology, is an essential device for a range of applications, particularly for filtering and decoupling. This capacitor gets its advantages over other components in the same family due to its small size and high capacity, low ESR and its ability to withstand strong voltage. Additionally, its robustness and reliability guarantee that the capacitor won\'t be damaged under high temperature or overvoltage conditions.
The specific data is subject to PDF, and the above content is for reference
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