ECJ-0EC1H220J
Small 22pF ceramic capacitors for surface-mount electronic circuits
Manufacturer： panasonic
series introduction
# Introduction to the ECJ - 0EC1H220J Product Series
## 1. Overview
The ECJ - 0EC1H220J product series belongs to the category of electronic components, specifically ceramic capacitors. These capacitors are widely used in various electronic circuits due to their excellent electrical properties, reliability, and compact size. They play a crucial role in filtering, coupling, bypassing, and energy storage applications, making them an essential part of modern electronic devices.
## 2. Product Specifications
### 2.1 Capacitance
The "220" in the product code indicates the capacitance value. In the standard capacitor coding system, for a three - digit code, the first two digits are the significant figures, and the third digit is the multiplier. So, for the code "220", the capacitance is \(22\times10^0 = 22\) pF (picofarads). This relatively small capacitance value makes it suitable for high - frequency applications where small capacitances are required to handle rapid changes in electrical signals.
### 2.2 Voltage Rating
The "1H" in the code represents the voltage rating. In the capacitor industry, a specific code system is used to denote voltage ratings. For the "1H" code, it typically corresponds to a voltage rating of 50 V. This means that the capacitor can safely operate in circuits where the maximum voltage across it does not exceed 50 volts.
### 2.3 Tolerance
The "J" in the product code indicates the tolerance of the capacitance value. A "J" tolerance means that the actual capacitance of the capacitor can vary by ±5% from the nominal value of 22 pF. This relatively tight tolerance ensures that the capacitor will perform consistently within a narrow range of capacitance values, which is important for applications where precise capacitance is required.
### 2.4 Dielectric Material
The ECJ series usually uses a ceramic dielectric. Ceramic dielectrics offer several advantages, such as high dielectric constant, low loss, and good temperature stability. The specific type of ceramic used in the ECJ - 0EC1H220J series is designed to provide reliable performance over a wide range of operating conditions.
## 3. Physical Characteristics
### 3.1 Size and Package
These capacitors are typically available in surface - mount packages, which are ideal for modern printed circuit board (PCB) manufacturing processes. The small size of the surface - mount package allows for high - density PCB designs, enabling the integration of more components in a limited space. The exact dimensions of the package will depend on the specific manufacturing standards and requirements, but they are generally very compact, making them suitable for use in small - sized electronic devices such as mobile phones, tablets, and wearable devices.
### 3.2 Color and Markings
The capacitor body is usually a color that is characteristic of the ceramic material used, often a light - colored ceramic. The product code (ECJ - 0EC1H220J) and other relevant information such as the capacitance value, voltage rating, and tolerance are marked on the surface of the capacitor using a laser or other marking techniques. These markings are important for identification and quality control during the manufacturing and assembly processes.
## 4. Electrical Performance
### 4.1 Frequency Response
Due to its small capacitance value, the ECJ - 0EC1H220J capacitor has an excellent high - frequency response. It can effectively filter out high - frequency noise and interference in electronic circuits. In high - speed digital circuits, for example, it can be used to decouple power supplies and prevent high - frequency noise from affecting the performance of sensitive components such as microprocessors and integrated circuits.
### 4.2 Temperature Stability
The ceramic dielectric used in
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