| Allicdata Part #: | T491X687M004ZT-ND |
| Manufacturer Part#: |
T491X687M004ZT |
| Price: | $ 0.00 |
| Product Category: | Capacitors |
| Manufacturer: | KEMET |
| Short Description: | CAP TANT 680UF 20% 4V 2917 |
| More Detail: | 680µF Molded Tantalum Capacitors 4V 2917 (7343 Met... |
| DataSheet: |  T491X687M004ZT Datasheet/PDF |
| Quantity: | 1000 |
| Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
| Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
| 1 +: | 0.00000 |
Specifications
| Operating Temperature: | -55°C ~ 125°C |
| Failure Rate: | -- |
| Features: | General Purpose |
| Ratings: | -- |
| Manufacturer Size Code: | X |
| Lead Spacing: | -- |
| Height - Seated (Max): | 0.173" (4.40mm) |
| 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 @ 125°C |
| Series: | T491 |
| ESR (Equivalent Series Resistance): | 500 mOhm @ 100kHz |
| Type: | Molded |
| Voltage - Rated: | 4V |
| Tolerance: | ±20% |
| Capacitance: | 680µF |
| Moisture Sensitivity Level (MSL): | -- |
| Part Status: | Obsolete |
| Lead Free Status / RoHS Status: | -- |
| Packaging: | Tape & Reel (TR) |
Description
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T491X687M004ZT tantalum capacitors are widely used in industries where reliability and efficiency are essential, such as in medical equipments and aerospace. It is a type of electrolytic capacitor with a tantalum oxide layer deposited as the dielectric on the surface of a tantalum metal powder core. It has two anodes; one is a solid anode composed of the tantalum powder core, and the other is an electrolytic anode composed of a metal salt solution that, when applied to the anode, reacts with the tantalum oxide layer to form a polarized film. This polarized film serves as the dielectric between the two anodes, enabling the capacitor to store charge. Furthermore, this dielectric layer naturally forms due to the chemical reaction between the electrolyte and the tantalum oxide, resulting in a dielectric with a high degree of reliability and stability.The tantalum metal powder core allows the capacitor to store a large amount of energy and have a low effective series resistance (ESR). This low ESR gives the capacitor a significant advantage over other types of capacitors such as aluminum electrolytic capacitors, which tend to have higher ESRs and thus not store as much energy. The construction of the T491X687M004ZT capacitor also includes an insulating sleeve, which prevents the capacitor from short-circuiting, as well as a sleeve feedthrough, which allows the capacitor to be connected in higher-voltage circuits. This feedthrough allows the capacitor to have higher working voltages than typical aluminum capacitors and also prevents damaging leakage currents. The T491X687M004ZT is also design for both polar and non-polar applications. Polar applications, such as in audio equipment, require that the positive and negative sides of the capacitor are connected differently in order to produce the desired voltage. Non-polar capacitors, such as in automotive applications, do not require this additional circuitry, making them easier to install.The T491X687M004ZT can also be used in high-temperature applications, where other types of capacitors would suffer from thermal shock or electrical leakage due to their inability to withstand high temperatures. As a result, the T491X687M004ZT is ideal for applications such as LED lighting and automotive alternators, where high temperatures can be expected.In addition to its high reliability and stable working temperature, the T491X687M004ZT also offers several advantages over other types of capacitors. For example, its ability to operate at a higher voltage means that it can handle larger current needs. This, in turn, increases the efficiency of the circuit, as the capacitor can take more load without overheating. Additionally, the T491X687M004ZT has a long shelf life, meaning that it can be stored for extended periods of time without fear of losing its efficient function. All in all, the T491X687M004ZT tantalum capacitor is an ideal choice for applications where reliability, efficiency, and high working temperatures are essential. Its ability to take on more current, operate at higher voltages, and maintain its efficient function for extended periods of time makes it an ideal choice for use in a variety of applications.
The specific data is subject to PDF, and the above content is for reference
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