| Allicdata Part #: | 399-10195-2-ND |
| Manufacturer Part#: |
T491D477K004AT |
| Price: | $ 0.40 |
| Product Category: | Capacitors |
| Manufacturer: | KEMET |
| Short Description: | CAP TANT 470UF 4V 10% 2917 |
| More Detail: | 470µF Molded Tantalum Capacitors 4V 2917 (7343 Met... |
| DataSheet: |  T491D477K004AT Datasheet/PDF |
| Quantity: | 1000 |
| Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
| Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
| 500 +: | $ 0.36147 |
| 1000 +: | $ 0.31894 |
| 2500 +: | $ 0.29768 |
| 5000 +: | $ 0.29363 |
Specifications
| Operating Temperature: | -55°C ~ 125°C |
| Failure Rate: | -- |
| Features: | General Purpose |
| Manufacturer Size Code: | D |
| Lead Spacing: | -- |
| Height - Seated (Max): | 0.110" (2.80mm) |
| Size / Dimension: | 0.287" L x 0.169" W (7.30mm x 4.30mm) |
| Package / Case: | 2917 (7343 Metric) |
| Mounting Type: | Surface Mount |
| Lifetime @ Temp.: | 2000 Hrs @ 85°C |
| Series: | T491 |
| ESR (Equivalent Series Resistance): | 800 mOhm |
| Type: | Molded |
| Voltage - Rated: | 4V |
| Tolerance: | ±10% |
| Capacitance: | 470µF |
| Moisture Sensitivity Level (MSL): | -- |
| Part Status: | Active |
| Lead Free Status / RoHS Status: | -- |
| Packaging: | Tape & Reel (TR) |
Description
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T491D477K004AT is one of the many types of tantalum capacitors, a type of capacitors also referred to as tantalum electrolytic capacitors, which are widely used in a variety of applications. The choice of a tantalum capacitor becomes relevant when high capacitance and small size become two of the most important features for selecting a capacitor.T491D477K004AT is a surface-mount, low profile, and conductive polymer type capacitor with a 4Volt rated voltage and an 0.020Ohm ESR (Equivalent Series Resistance). It is constructed with a sintered tantalum anode and an organic solid dielectric in order to provide high capacitance and a low ESR rating. The capacitance of the T491D477K004AT is 47uF with a ±20% tolerance. The maximum operating temperature of the capacitor is 125Celsius, while the maximum rated ripple current is 4mA.T491D477K004AT is used in various applications where a high capacitance coupled with a small size and low ESR is most important. Such applications can ranges widely from power converter and electrical conditioning, to audio and RF noise filter. The sintered tantalum anode is suitable for use in applications with high frequencys, and the low ESR of the capacitor guarantees efficient operation over a wide range of frequencies.The working principle behind a tantalum capacitor such as T491D477K004AT is based on the transmission of electrons between two plates that are separated by a dielectric. When anexternal voltage is applied to the capacitor, acharging currentmoves through the capacitor, essentially creating an electric field that is proportional to the chargedis the storage of electric charge between two electrodes. This electric charge can then be released in the form of discharging current. The charging and discharging of the tantalum capacitor is beneficial in that it provides the electricity within a circuit with greater stability and allows for the application of higher currents. The capacitance of a tantalum capacitor such as T491D477K004AT can provide acircuit with increasedbandwidth, as well asthe capability to react quickly to changes in voltage. This type of capacitor also has excellent natural frequency and phase characteristics, which make it valuable for dissipating RF energy and maintaining frequency response in various circuits.The advantages of using a tantalum capacitor such as T491D477K004AT include the small footprint, high capacitance, and low ESR. As well as having the ability to provide spikes of current, they are also capable of operating in higher temperatures than other types of capacitors. This makes them suitable for use in power conditioning and audio applications, where dissipation of heat is a factor. In conclusion, the T491D477K004AT tantalum capacitor is designed to meet thehigh capacitance and small size requirements of various applications. The sintered tantalum anode, organic solid dielectric, and low equivalent series resistance make this an ideal choice for low profile, high capacitance needs. Moreover, the capacitors’ ease of use and its excellent frequency andphase characteristics make it ideal for use in power conditioning, audio, and RF applications.
The specific data is subject to PDF, and the above content is for reference
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