GRM31BR73A471KW01L
High-voltage multilayer ceramic capacitors for SMD applications
Manufacturer： murata
series introduction
# Introduction to the GRM31BR73A471KW01L Product Series
## 1. Overview
The GRM31BR73A471KW01L belongs to a high - performance product series of multilayer ceramic capacitors (MLCCs) offered by Murata Manufacturing Co., Ltd., a globally recognized leader in electronic components. These capacitors are designed to meet the diverse and demanding requirements of modern electronic circuits, providing reliable and efficient capacitance solutions across a wide range of applications.
## 2. Physical Characteristics
### Dimensions
The GRM31B series is characterized by its compact size. The specific model GRM31BR73A471KW01L has a standardized package size, which is optimized for surface - mount technology (SMT). This compactness allows for high - density circuit board designs, making it suitable for applications where space is at a premium, such as in mobile devices, wearables, and small - form - factor consumer electronics.
### Construction
It is a multilayer ceramic capacitor, which means it consists of multiple layers of ceramic dielectric material interleaved with metal electrodes. The ceramic dielectric used in this series is carefully selected and engineered to provide excellent electrical properties. The electrodes are typically made of high - conductivity metals, ensuring low resistance and efficient charge transfer within the capacitor.
## 3. Electrical Specifications
### Capacitance
The "471" in the part number indicates the capacitance value of the capacitor. Using the standard capacitor value coding system, 471 translates to 470 pF (picofarads). This capacitance value is well - suited for a variety of filtering, coupling, and bypass applications in electronic circuits. For example, in radio frequency (RF) circuits, a 470 pF capacitor can be used to tune resonant circuits or to filter out unwanted frequencies.
### Voltage Rating
The "A" in the part number often represents the voltage rating of the capacitor. In this case, it has a rated voltage of 100 VDC. This relatively high voltage rating makes the GRM31BR73A471KW01L suitable for applications where the circuit may experience moderate to high voltage levels, such as in power supply circuits or in some industrial control systems.
### Temperature Coefficient
The "R7" in the part number indicates the temperature coefficient of the capacitor. The R7 characteristic typically means that the capacitor has a Class II ceramic dielectric with a temperature coefficient of ±15% over a temperature range of - 55°C to +125°C. This stability over a wide temperature range is crucial for applications that may be exposed to varying environmental conditions, such as automotive electronics or outdoor - use electronic devices.
### Tolerance
The "K" in the part number represents the capacitance tolerance. A "K" tolerance means that the actual capacitance value of the capacitor can vary by ±10% from the nominal value of 470 pF. This level of tolerance is acceptable for many general - purpose applications, but for more precision - critical circuits, additional screening or selection may be required.
## 4. Performance Advantages
### Low Equivalent Series Resistance (ESR)
The GRM31BR73A471KW01L exhibits low ESR, which is beneficial in high - frequency applications. Low ESR reduces power losses and heat generation within the capacitor, improving the overall efficiency of the circuit. In power supply circuits, for example, a low - ESR capacitor can help to smooth out voltage ripples and improve the stability of the output voltage.
### High Self - Resonant Frequency (SRF)
Due to its construction and electrical properties, this capacitor has a relatively high self - resonant frequency. The high SRF makes it suitable for use in RF and
Images for reference
GRM Series_1206_1.25
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GRM Series_1206_1.25