| Allicdata Part #: | T540D687K2R5AH85057280-ND |
| Manufacturer Part#: |
T540D687K2R5AH85057280 |
| Price: | $ 4.84 |
| Product Category: | Capacitors |
| Manufacturer: | KEMET |
| Short Description: | CAP TANT POLY 680UF 2.5V 2917 |
| More Detail: | 680µF Molded Tantalum Polymer Capacitor 2.5V 2917 ... |
| DataSheet: |  T540D687K2R5AH85057280 Datasheet/PDF |
| Quantity: | 1000 |
| Moisture Sensitivity Level (MSL): | 3 (168 Hours) |
| Lead Free Status / RoHS Status: | Contains lead / RoHS non-compliant |
| 2500 +: | $ 4.39132 |
Specifications
| Operating Temperature: | -55°C ~ 125°C |
| Features: | High Reliability |
| Ratings: | COTS |
| Manufacturer Size Code: | D |
| Lead Spacing: | -- |
| Height - Seated (Max): | 0.122" (3.10mm) |
| 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: | KO-CAP® T540 |
| ESR (Equivalent Series Resistance): | 40 mOhm @ 100kHz |
| Type: | Molded |
| Voltage - Rated: | 2.5V |
| Tolerance: | ±10% |
| Capacitance: | 680µF |
| Moisture Sensitivity Level (MSL): | -- |
| Part Status: | Active |
| Lead Free Status / RoHS Status: | -- |
| Packaging: | Tape & Reel (TR) |
Description
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T540D687K2R5AH85057280 is a kind of tantalum - polymer capacitors. It is a surface mount, non-solid, tantalum chip capacitor that is used in electronic circuits for different purposes. This capacitor is unique because it contains both a chemically deposited solid electrolyte and a polymer film technology. This combination provides excellent electrical and mechanical characteristics for a wide variety of applications. The major benefits of using T540D687K2R5AH85057280 include its small size, high capacitance and low equivalent series resistance (ESR).
Application Field of T540D687K2R5AH85057280
T540D687K2R5AH85057280 is commonly used in power supplies, motherboards, and medical and industrial electronics applications. It is suitable for portable electronic equipment, high performance computing, and networking systems due to its low ESR, small size and efficient power supply. Because of its extremely low leakage current and superior absorption characteristics, it is also suitable for audio and video equipment and other demanding power applications.
Working Principle of T540D687K2R5AH85057280
The working principle of T540D687K2R5AH85057280 is simple and effective. In this type of capacitor, a solid layer of tantalum oxide acts as the dielectric and a thin film of polymer acts as the charge carrier. This combination of dielectric and charge carriers ensure that the capacitor can store better amount of charge and has very low equivalent series resistance (ESR).
The working mechanism of T540D687K2R5AH85057280 is based on Faraday’s law of electrolysis. According to this law, the current flow through a capacitor can be related to the voltage applied across the terminals of the capacitor. When current flows through the capacitor, it produces a polarization of the dielectric layer. This polarization effect results in the formation of an electrical field within the capacitor which helps in storing the charge. When the applied voltage across the terminals of the capacitor is removed, the electrical field produced in the capacitor quickly collapses and the stored charge within the capacitor is then discharged.
Another key principle involved in the working of the T540D687K2R5AH85057280 is the strong absorption characteristics of the Polymer film. This property helps to reduce the ESR and the overall equivalent series inductance (ESL) of the capacitor. The polymer film also helps in controlling the leakage current which helps to reduce the overall dissipation of energy.
The combination of these principles makes the T540D687K2R5AH85057280 an ideal choice for many circuit designs. Its excellent electrical and mechanical characteristics allow it to be used in a variety of applications such as in DC/DC converters, high-frequency switching power supply designs and ultra-low ESR voltage-regulating systems. Its low leakage current, ESR, and strong absorption characteristics also make it suitable for a wide range of applications such as medical and industrial electronics.
The specific data is subject to PDF, and the above content is for reference
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