C1812C683J1GACTU
High-voltage multilayer ceramic capacitors for surface-mount applications
Manufacturer： kemet
series introduction
# Introduction to the C1812C683J1GACTU Product Series
## 1. Overview
The C1812C683J1GACTU product series belongs to the category of electronic components, specifically capacitors. Capacitors are fundamental passive components in electronic circuits, and this series offers unique features and performance characteristics that make it suitable for a wide range of applications.
## 2. Product Naming Convention
Let's break down the product code "C1812C683J1GACTU" to understand its key specifications:
- **C**: This is often an indication of the component type, in this case, a capacitor.
- **1812**: Refers to the physical size of the capacitor, also known as the package size. In the imperial system, 1812 represents a length of 0.18 inches and a width of 0.12 inches. This size is relatively large compared to some other surface - mount capacitor packages, which can offer certain advantages in terms of power handling and stability.
- **C**: May be related to the dielectric material or a specific series within the capacitor product line.
- **683**: This is the capacitance value code. Using the standard capacitor coding system, the first two digits (68) are the significant figures, and the third digit (3) is the multiplier. So, the capacitance value is \(68\times10^{3}\) picofarads, which is equal to 68,000 picofarads or 68 nanofarads (\(nF\)).
- **J**: Represents the tolerance of the capacitance value. In this case, a "J" indicates a tolerance of ±5%. This means that the actual capacitance of the capacitor can vary within 5% of the nominal value (68 nF).
- **1G**: This part of the code may be related to the voltage rating, temperature coefficient, or other electrical characteristics specific to the manufacturer's coding system.
- **ACTU**: Could be a unique identifier for the product series, indicating additional features, manufacturing process, or application - specific optimizations.
## 3. Electrical Characteristics
### Capacitance
As mentioned earlier, the nominal capacitance of the C1812C683J1GACTU series is 68 nF with a tolerance of ±5%. This capacitance value is crucial in determining the capacitor's ability to store and release electrical charge in a circuit. It can be used for tasks such as filtering, coupling, and decoupling in various electronic systems.
### Voltage Rating
The voltage rating of the capacitor is an important parameter that determines the maximum voltage the capacitor can withstand without breaking down. While the specific voltage rating is not explicitly clear from the product code, it is typically specified in the manufacturer's datasheet. A higher voltage rating allows the capacitor to be used in circuits with higher operating voltages.
### Temperature Coefficient
The temperature coefficient indicates how the capacitance value changes with temperature. A stable temperature coefficient is essential for applications where the circuit needs to operate reliably over a wide temperature range. The C1812C683J1GACTU series is likely to have a specified temperature coefficient, which helps designers predict the capacitor's performance under different thermal conditions.
### Equivalent Series Resistance (ESR)
ESR is the resistance that appears in series with the capacitance of the capacitor. A low ESR is desirable in many applications, especially in power supply filtering circuits, as it reduces power losses and improves the efficiency of the circuit. The C1812C683J1GACTU series is designed to have a relatively low ESR, which makes it suitable for high - frequency applications.
## 4
Images for reference
399-1812
ACTU_1812
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