GRM155R61E105KA12
Compact 1μF 25V X5R ceramic capacitors for SMD applications
Manufacturer： murata
series introduction
# Introduction to the GRM155R61E105KA12 Product Series
## 1. Overview
The GRM155R61E105KA12 belongs to a high - performance series of multilayer ceramic capacitors (MLCCs). These components are essential building blocks in modern electronic circuits, offering reliable capacitance solutions for a wide range of applications.
## 2. Product Naming Convention
- **GRM**: This is the product series code specific to the manufacturer, which indicates a certain set of design and performance characteristics associated with this line of MLCCs.
- **155**: Represents the size of the capacitor. In this case, it typically corresponds to a physical dimension that is standardized in the industry. The specific size details can be found in the manufacturer's datasheet, but generally, it gives an indication of the footprint the capacitor will occupy on a printed circuit board (PCB).
- **R6**: This denotes the dielectric type. The R6 dielectric has specific electrical properties such as a certain level of capacitance stability over temperature and voltage variations. It is suitable for applications where moderate stability is required.
- **1E**: Indicates the rated voltage of the capacitor. The code “1E” corresponds to a rated voltage of 25V, which means the capacitor is designed to operate safely up to this voltage level without significant degradation in performance or risk of failure.
- **105**: This is the capacitance value code. Using the standard capacitor coding system, the first two digits (10) are the significant figures, and the third digit (5) is the multiplier. So, \(10\times10^{5}\) pF, which is equal to 1 μF.
- **K**: Represents the tolerance of the capacitance value. A “K” tolerance means that the actual capacitance of the capacitor can vary by ±10% from the nominal value of 1 μF.
- **A12**: This is a specific code that may be used by the manufacturer for internal tracking, version control, or to indicate additional features or manufacturing details that are not immediately obvious from the other parts of the naming convention.
## 3. Electrical Characteristics
### Capacitance
The nominal capacitance of the GRM155R61E105KA12 is 1 μF with a tolerance of ±10%. This means that the actual capacitance value of the capacitor can range from 0.9 μF to 1.1 μF. The capacitance value is crucial in applications such as filtering, coupling, and decoupling, where it determines the frequency response and the amount of charge that can be stored and released.
### Voltage Rating
With a rated voltage of 25V, this capacitor can be used in circuits where the voltage across the capacitor does not exceed this value. Exceeding the rated voltage can lead to dielectric breakdown, which may cause the capacitor to fail and potentially damage other components in the circuit.
### Temperature Coefficient
The R6 dielectric has a temperature coefficient that affects the capacitance value as the temperature changes. While the exact temperature coefficient can be found in the datasheet, generally, it shows a certain degree of capacitance variation over a specified temperature range. This is important in applications where the operating temperature can vary significantly, such as in automotive or industrial environments.
### Equivalent Series Resistance (ESR)
The ESR of the GRM155R61E105KA12 is an important parameter, especially in high - frequency applications. A low ESR value indicates that the capacitor can charge and discharge quickly, reducing power losses and improving the efficiency of the circuit. The specific ESR value depends on factors such as the frequency of operation and the temperature.
## 4. Physical Characteristics
### Size and
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