08055J0R5ABTTR

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Thin film capacitors are widely used in applications involving low current, high reliability, and low signal distortion. The 08055J0R5ABTTR series is one such capacitor. It has a wide range of capacitance options from 0.0005 to 0.127uF (most common) and ±0.01pF to ±2.2pF capacitance tolerance. It is a small, low-profile, surface mount capacitor, with a temperature range of -55 to +85°C and a 20mΩ maximum series resistance (RMS). It is ideal for applications where space is a constraint, such as small electronic devices.

The 08055J0R5ABTTR series is composed of a tantalum dielectric, made up of tantalum pentoxide and ruthenium dioxide bonded together to create a monolithic structure. The dielectric is deposited with a sputtering method, which causes the atoms in the area being sputtered to form an electrically charged cloud. The exterior of the dielectric is then covered with a conductive layer of silver (Ag) and/or tin-lead (Pb) alloy. Then, a protective layer of silicon oxide (SiO₂) or polyimide is applied to increase mechanical stability and reduce contamination.

In terms of working principle, the 08055J0R5ABTTR series uses a plate capacitor structure. This is a simple way to explain how it works: when a voltage is applied across the capacitor’s two terminals, electric field lines are formed, causing charges to move to neutralize the electric field. The plates create a separation region between the charges, and the main capacitance of the capacitor is determined by the ratio of the plates’ surface area and the distance between them. Considering the thin-film nature of the 08055J0R5ABTTR, this distance is very small.

The 08055J0R5ABTTR is an ideal choice for most precision applications as its tightly defined capacitance tolerance ensures good efficiency. It is used in various applications, most notably in mobile phones, tablets, notebook PCs, LCD displays, and other information and communications devices, as well as in audio-visual equipment, video cameras, game systems, and toys.

In summary, the 08055J0R5ABTTR is a high-performance, low-profile, surface mount, thin film capacitor. It has a wide capacitance range, a tight tolerance, and a high-reliability tantalum dielectric. It operates on a plate capacitor principle and is suitable for a variety of precision applications. Overall, it is a great choice for applications requiring low current, high reliability, and low signal distortion.

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