C0805C151K5RACTU
Compact multilayer ceramic capacitors for surface-mount electronic circuits
Manufacturer： kemet
series introduction
# Introduction to the C0805C151K5RACTU Product Series
## 1. Overview
The C0805C151K5RACTU product series belongs to the category of ceramic capacitors. These components are essential building - blocks in modern electronic circuits, playing a crucial role in a wide range of applications due to their unique electrical properties and physical characteristics.
## 2. Physical Specifications
### 2.1 Package Size
The "0805" in the product code indicates the package size of the capacitor. In the imperial measurement system, an 0805 package has dimensions of approximately 0.08 inches (2.032 mm) in length and 0.05 inches (1.27 mm) in width. This relatively compact size makes it suitable for use in printed circuit boards (PCBs) where space is often at a premium, such as in mobile devices, wearables, and small - form - factor consumer electronics.
### 2.2 Construction
The capacitor is constructed using ceramic materials. The ceramic dielectric provides several advantages, including high dielectric constant, which allows for a relatively large capacitance value to be achieved in a small physical size. The electrodes are typically made of a conductive metal, which is carefully deposited on the ceramic dielectric to form the capacitor structure.
## 3. Electrical Specifications
### 3.1 Capacitance
The "151" in the product code represents the capacitance value. Using the standard capacitor coding system, the first two digits (15) are the significant figures, and the third digit (1) is the multiplier. So, the capacitance value is \(15\times10^{1}\) pF, which equals 150 pF. This capacitance value is suitable for a variety of filtering, coupling, and bypass applications in electronic circuits.
### 3.2 Tolerance
The "K" in the product code indicates the capacitance tolerance. A "K" tolerance means that the actual capacitance value of the capacitor can deviate from the nominal value (150 pF in this case) by ±10%. This level of tolerance is acceptable for many general - purpose applications where a high degree of precision is not required.
### 3.3 Voltage Rating
The "5R" in the product code is related to the voltage rating. In this case, it indicates a voltage rating of 50 V. This means that the capacitor can safely operate in a circuit where the maximum voltage across its terminals does not exceed 50 V. It is important to select a capacitor with an appropriate voltage rating to ensure the reliability and safety of the circuit.
### 3.4 Temperature Coefficient
The "ACTU" part of the product code provides information about the temperature coefficient of the capacitor. The specific temperature coefficient characteristics of the "ACTU" code determine how the capacitance value changes with temperature. This is an important parameter in applications where the operating temperature can vary significantly, as it affects the stability of the circuit performance.
## 4. Applications
### 4.1 Filtering
In power supply circuits, the C0805C151K5RACTU capacitors can be used as filtering components. They help to smooth out the DC voltage by removing the ripple and noise present in the power supply. By connecting the capacitor in parallel with the load, it can store and release electrical energy, reducing the fluctuations in the voltage and providing a more stable power source for the electronic components.
### 4.2 Coupling
In amplifier circuits, these capacitors are used for coupling purposes. They allow the AC signal to pass from one stage of the amplifier to the next while blocking the DC component. This ensures that the biasing conditions of each amplifier stage are maintained independently, preventing the DC voltages from interfering with
Images for reference
0805 MLCC Caps
Image Preview