GRM188R71A225K
Compact 2.2uF ceramic capacitors for SMD applications
Manufacturer： murata
series introduction
# Introduction to the GRM188R71A225K Product Series
## 1. Overview
The GRM188R71A225K belongs to a high - performance capacitor product series. Capacitors are fundamental components in electronic circuits, and this series is designed to meet a wide range of application requirements with its specific electrical characteristics and physical properties.
## 2. Product Naming Convention
- **GRM**: This is the product family code assigned by the manufacturer. It represents a particular line of capacitors with consistent design and manufacturing standards.
- **188**: Indicates the size of the capacitor. In this case, it follows a specific industry - standard size code. The dimensions are crucial as they determine how the capacitor can be integrated into a printed circuit board (PCB). For the GRM188 series, it has a relatively compact size, which is suitable for applications where space is limited.
- **R7**: This denotes the dielectric material used in the capacitor. The R7 dielectric is a type of ceramic dielectric known for its good temperature stability and electrical performance. It offers a balance between capacitance value, voltage rating, and temperature coefficient.
- **1A**: Represents the rated voltage of the capacitor. In this case, 1A corresponds to a rated voltage of 10V. The rated voltage is an important parameter as it indicates the maximum voltage that the capacitor can safely withstand without experiencing breakdown or other electrical failures.
- **225**: This is the capacitance value code. Using the standard capacitor coding system, the first two digits (22) are the significant figures, and the third digit (5) is the multiplier. So, the capacitance value is \(22\times10^{5}\) pF, which is equivalent to 2.2 μF.
- **K**: Indicates the tolerance of the capacitance value. A "K" tolerance means that the actual capacitance value of the capacitor can vary by ±10% from the nominal value of 2.2 μF.
## 3. Electrical Characteristics
### Capacitance
The nominal capacitance of the GRM188R71A225K is 2.2 μF. This capacitance value is suitable for a variety of filtering, coupling, and energy storage applications in electronic circuits. For example, in power supply circuits, it can be used to filter out ripple voltages, providing a more stable DC voltage to the load.
### Voltage Rating
With a rated voltage of 10V, this capacitor can be used in low - voltage electronic circuits. It is important to ensure that the operating voltage in the circuit does not exceed this rated value to avoid capacitor failure. In applications such as battery - powered devices or low - voltage integrated circuits, this capacitor can be safely employed.
### Temperature Coefficient
Due to the R7 dielectric, the capacitor has a relatively stable capacitance value over a wide temperature range. This is important in applications where the operating temperature may vary, such as in automotive electronics or industrial control systems. The temperature coefficient of the R7 dielectric helps to maintain the electrical performance of the capacitor, ensuring consistent operation of the circuit.
### Equivalent Series Resistance (ESR)
The ESR of the GRM188R71A225K is relatively low. A low ESR is beneficial in applications where high - frequency performance is required, such as in switching power supplies. It reduces power losses and heat generation in the capacitor, improving the overall efficiency of the circuit.
## 4. Physical Characteristics
### Size and Package
As mentioned earlier, the GRM188 series has a specific size. The compact size makes it suitable for surface - mount technology (SMT) applications. SMT components are widely used in modern electronics manufacturing as they allow for
Images for reference
GRM Series_0603_0.8
0603 Murata MLCC Caps
GRM Series_0603_0.8