GRM21BR71H104K
Compact 0805 SMD ceramic capacitors, 0.1µF, 50V, X7R dielectric
Manufacturer： murata
series introduction
# Introduction to the GRM21BR71H104K Product Series
## 1. Overview
The GRM21BR71H104K belongs to a high - performance capacitor product series, typically manufactured by Murata, a world - renowned leader in electronic components. These capacitors are widely used in various electronic circuits due to their excellent electrical properties and reliability.
## 2. Product Specifications
### Physical Dimensions
- The "GRM21" in the model number indicates the size of the capacitor. It has a compact surface - mount design, which is suitable for modern printed circuit board (PCB) assembly processes. The specific dimensions are carefully engineered to fit into tight spaces on PCBs, enabling high - density circuit designs.
- This size is ideal for applications where space is at a premium, such as in mobile devices, wearables, and small - form - factor consumer electronics.
### Dielectric Material
- The "R7" represents the dielectric type. In this case, it is a Class II ceramic dielectric. Class II ceramic dielectrics offer a high dielectric constant, which allows for relatively large capacitance values in a small physical package.
- This dielectric also provides good temperature stability within a certain range, making the capacitor suitable for a variety of operating environments.
### Voltage Rating
The "1H" indicates a voltage rating. For this product series, it typically corresponds to a rated voltage of 50V. This voltage rating is important as it determines the maximum voltage that the capacitor can safely handle in a circuit. It ensures the long - term reliability of the capacitor and protects it from damage due to over - voltage conditions.
### Capacitance Value
The "104" code represents the capacitance value. Using the standard capacitor coding system, "104" means \(10\times10^{4}\) picofarads (pF), which is equivalent to 0.1 microfarads (\(\mu F\)). This capacitance value is commonly used in many electronic circuits for functions such as filtering, decoupling, and coupling.
### Tolerance
The "K" indicates the capacitance tolerance. A "K" tolerance means that the actual capacitance value of the capacitor can deviate from the nominal value (\(0.1\mu F\) in this case) by ±10%. This tolerance level is acceptable for most general - purpose applications, providing a balance between cost and performance.
## 3. Electrical Characteristics
### Low Equivalent Series Resistance (ESR)
The GRM21BR71H104K capacitors typically have a low ESR. Low ESR is crucial in applications where high - frequency performance is required, such as in power supply circuits. It helps to reduce power losses and heat generation, improving the overall efficiency of the circuit.
### High - Frequency Performance
Due to the properties of the ceramic dielectric and the design of the capacitor, it exhibits excellent high - frequency characteristics. It can effectively filter out high - frequency noise and interference in circuits, making it suitable for use in radio frequency (RF) circuits, communication devices, and high - speed digital circuits.
### Temperature Coefficient
The temperature coefficient of the capacitor is an important parameter. The Class II ceramic dielectric used in this product series has a relatively stable temperature coefficient within its specified operating temperature range. This means that the capacitance value changes only slightly with temperature variations, ensuring the stability of the circuit performance over a wide temperature range.
## 4. Applications
### Power Supply Circuits
- In power supply circuits, the GRM21BR71H104K capacitors are commonly used for decoupling. They help to reduce the noise and ripple in the power supply, providing a clean and stable power source for other components in the circuit.
- They can also be used for filtering high - frequency
Images for reference
GRM Series_0805_1.25
0805(GRM21B)
GRM Series_0805_1.25