GRM21B5C1H223J
Compact 22nF ceramic capacitors for SMD applications, 50V, C0G dielectric
Manufacturer： murata
series introduction
# Introduction to the GRM21B5C1H223J Product Series
## 1. Overview
The GRM21B5C1H223J belongs to a highly specialized and widely - used product series in the field of electronic components. Specifically, it is a multilayer ceramic capacitor (MLCC), which is a crucial passive component in modern electronic circuits. MLCCs are known for their small size, high capacitance values, and excellent electrical performance, making them indispensable in a vast range of electronic devices.
## 2. Product Naming Convention
Let's break down the product code "GRM21B5C1H223J" to understand its key features:
- **GRM**: This is the product series prefix, which is a well - recognized identifier for a particular line of MLCCs produced by the manufacturer. It represents a set of design and manufacturing standards that ensure consistent quality and performance.
- **21**: Indicates the size of the capacitor. In this case, it follows a specific industry - standard size code. The "21" corresponds to a particular physical dimension, which is important for PCB (Printed Circuit Board) layout and component placement.
- **B**: This letter represents the dielectric material used in the capacitor. Different dielectric materials have different electrical properties, such as capacitance temperature coefficient, dielectric constant, and insulation resistance. The "B" dielectric offers certain characteristics that are suitable for specific applications.
- **5C**: This part of the code is related to the rated voltage of the capacitor. It indicates the maximum voltage that the capacitor can safely withstand during normal operation.
- **1H**: Another aspect related to the rated voltage, providing more detailed information about the voltage rating and its tolerance.
- **223**: This is the capacitance value code. Using the standard three - digit code system, the first two digits (22) are the significant figures, and the third digit (3) is the multiplier. So, the capacitance value is \(22\times10^{3}\) pF, which is equal to 22,000 pF or 0.022 μF.
- **J**: Represents the capacitance tolerance. The "J" indicates a tolerance of ±5%, which means that the actual capacitance value of the capacitor can vary within ±5% of the nominal value (22,000 pF in this case).
## 3. Electrical Characteristics
### Capacitance
With a nominal capacitance of 0.022 μF and a tight tolerance of ±5%, the GRM21B5C1H223J provides a reliable and precise capacitance value. This is crucial in applications where accurate capacitance is required for proper circuit operation, such as in filtering circuits, coupling circuits, and timing circuits.
### Voltage Rating
The capacitor has a specific rated voltage determined by the "5C" and "1H" in the product code. This voltage rating ensures that the capacitor can operate safely under the specified voltage conditions. Exceeding the rated voltage can lead to dielectric breakdown, which may damage the capacitor and the entire electronic circuit.
### Temperature Coefficient
The dielectric material used in the GRM21B5C1H223J has a defined temperature coefficient. This coefficient indicates how the capacitance value changes with temperature. A stable temperature coefficient is important in applications where the operating temperature may vary, such as in automotive electronics, industrial control systems, and outdoor electronic devices.
### Insulation Resistance
High insulation resistance is a key characteristic of this capacitor. It ensures that there is minimal leakage current between the capacitor's electrodes, which is essential for maintaining the efficiency and reliability of the circuit. A low insulation resistance can lead to power losses and inaccurate circuit performance.
## 4. Physical
Images for reference
GRM Series_0805_1.25
0805(GRM21B)
GRM Series_0805_1.25