C1206C105K3RACTU
1uF 25V X7R ceramic capacitors for SMD applications
Manufacturer： kemet
series introduction
# Introduction to the C1206C105K3RACTU Product Series
## 1. Overview
The C1206C105K3RACTU product series belongs to the category of ceramic capacitors. These components play a crucial role in a wide range of electronic circuits, offering reliable capacitance solutions for various applications. The naming convention of the product provides important information about its key characteristics.
### Naming Convention Breakdown
- **C1206**: This indicates the physical size of the capacitor. The "1206" is a standard surface - mount device (SMD) package size. In the imperial system, it represents a length of 0.12 inches (3.05 mm) and a width of 0.06 inches (1.52 mm). This size is widely used in the electronics industry due to its balance between ease of handling during assembly and the ability to provide sufficient capacitance values.
- **C**: Usually, the first "C" stands for ceramic, which is the dielectric material used in the capacitor. Ceramic dielectrics are popular because of their high dielectric constant, low cost, and good temperature stability.
- **105**: This is a code that represents the capacitance value. Using the standard capacitor coding system, the first two digits (10) are the significant figures, and the third digit (5) is the multiplier. So, \(10\times10^{5}\) picofarads (pF), which is equal to 1 microfarad (\(\mu F\)).
- **K**: The letter "K" indicates the tolerance of the capacitor. In this case, a "K" tolerance means ±10%. This means that the actual capacitance value of the capacitor can vary by up to 10% from the nominal value of 1 \(\mu F\). For example, the actual capacitance could range from 0.9 \(\mu F\) to 1.1 \(\mu F\).
- **3R**: This part of the code may represent additional characteristics such as the voltage rating or specific performance parameters defined by the manufacturer.
- **ACTU**: This is likely a unique identifier for the specific product line or series within the manufacturer's catalog, which may include details about the manufacturing process, quality control, or other features specific to this particular version of the capacitor.
## 2. Electrical Characteristics
### Capacitance
As mentioned earlier, the nominal capacitance of the C1206C105K3RACTU series is 1 \(\mu F\) with a tolerance of ±10%. This capacitance value makes it suitable for a variety of applications, including filtering, coupling, and decoupling in electronic circuits.
### Voltage Rating
The voltage rating, indicated by the "3R" code, determines the maximum voltage that the capacitor can safely withstand without experiencing breakdown or significant degradation in performance. A higher voltage rating allows the capacitor to be used in circuits with higher operating voltages.
### Temperature Coefficient
Ceramic capacitors typically have a certain temperature coefficient, which describes how the capacitance value changes with temperature. The C1206C105K3RACTU series is designed to have a relatively stable capacitance over a wide temperature range, ensuring consistent performance in different environmental conditions.
### Equivalent Series Resistance (ESR)
ESR is an important parameter for capacitors, especially in high - frequency applications. It represents the resistance that is effectively in series with the capacitance. A low ESR value is desirable as it reduces power losses and improves the efficiency of the circuit. The C1206C105K3RACTU series is engineered to have a relatively low ESR, making it suitable for high - speed and high - frequency circuits.
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Images for reference
1206 Kemet MLCC Caps
ACTU_1206
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