GRM32ER71A476
High-capacity multilayer ceramic capacitors for SMD applications
Manufacturer： murata
series introduction
# Introduction to the GRM32ER71A476 Product Series
## 1. Overview
The GRM32ER71A476 belongs to a high - performance capacitor product series, which is designed to meet the diverse and demanding requirements of modern electronic circuits. These capacitors play a crucial role in various applications, from consumer electronics to industrial control systems, by providing stable and reliable electrical performance.
## 2. Product Specifications
### Physical Dimensions
The GRM32E series has a well - defined physical size. The "32" in the model number typically indicates the package size. It is designed to fit into standard printed circuit board (PCB) layouts, allowing for easy integration into existing or new circuit designs. This standardized size ensures compatibility with automated assembly processes, which can significantly reduce production costs and increase manufacturing efficiency.
### Capacitance
The "476" in the model number represents the capacitance value. In the capacitor naming convention, this translates to a capacitance of 47 μF (microfarads). This relatively high capacitance value makes the GRM32ER71A476 suitable for applications that require large amounts of charge storage, such as power supply filtering and decoupling.
### Voltage Rating
The "1A" in the model number indicates the voltage rating. In this case, it has a rated voltage of 10V. This voltage rating determines the maximum voltage that the capacitor can safely handle without the risk of breakdown. It is important to select a capacitor with an appropriate voltage rating for the specific application to ensure long - term reliability and safety.
### Dielectric Material
The "R7" indicates the type of dielectric material used in the capacitor. The R7 dielectric is a ceramic dielectric, which offers several advantages. Ceramic dielectrics have high dielectric constants, which means they can store more charge per unit volume compared to other dielectric materials. They also have good temperature stability, low equivalent series resistance (ESR), and low equivalent series inductance (ESL), making them ideal for high - frequency applications.
## 3. Electrical Performance
### Capacitance Tolerance
The GRM32ER71A476 typically has a specified capacitance tolerance. This tolerance indicates the allowable deviation from the nominal capacitance value. A common tolerance for this type of capacitor is ±20%. This means that the actual capacitance of the capacitor can vary between 37.6 μF and 56.4 μF. While this may seem like a relatively large variation, it is acceptable for many general - purpose applications.
### Temperature Coefficient
Due to the use of the R7 ceramic dielectric, the capacitor has a relatively stable capacitance over a wide temperature range. The temperature coefficient of capacitance (TCC) for R7 dielectrics is typically in the range of ±15% over a temperature range of - 55°C to +125°C. This makes the GRM32ER71A476 suitable for applications that operate in harsh environmental conditions.
### Equivalent Series Resistance (ESR)
The ESR of the GRM32ER71A476 is relatively low. A low ESR is beneficial because it reduces power losses in the capacitor, especially in high - frequency applications. When a capacitor is used in a power supply filtering circuit, a low ESR helps to smooth out the voltage ripple and improve the overall power quality.
### Equivalent Series Inductance (ESL)
Similar to ESR, the ESL of this capacitor is also low. Low ESL is important for high - frequency applications as it reduces the impedance of the capacitor at high frequencies. This allows the capacitor to respond quickly to changes in the electrical signal, making it suitable for applications such as high - speed data communication and RF circuits.
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Images for reference
GRM Series_1210_2.5
1210-32E
GRM Series_1210_2.5