C1005X7R1H104K
Compact 0402 X7R ceramic capacitors for SMD applications
Manufacturer： tdk
series introduction
# Introduction to the C1005X7R1H104K Product Series
## 1. Overview
The C1005X7R1H104K product series belongs to the category of multilayer ceramic capacitors (MLCCs). These capacitors are essential passive components widely used in various electronic circuits due to their excellent electrical properties, compact size, and high reliability.
## 2. Product Naming Convention
Let's break down the product code “C1005X7R1H104K” to understand its key specifications:
- **C**: Usually indicates that it is a capacitor.
- **1005**: This represents the physical size of the capacitor, also known as the chip size. In the metric system, 1005 corresponds to a length of 1.0 mm and a width of 0.5 mm. This small size makes it suitable for applications where space is limited, such as in mobile devices, wearables, and other miniaturized electronics.
- **X7R**: It is the dielectric type of the capacitor. X7R is a Class II dielectric, which offers a good balance between capacitance stability, temperature coefficient, and cost. The “X” indicates that the lower temperature limit of the capacitor is -55°C, and “7” means the upper temperature limit is +125°C. The “R” implies that the capacitance change over this temperature range is within ±15%.
- **1H**: This part of the code represents the rated voltage of the capacitor. In the standard coding system, “1H” corresponds to a rated voltage of 50V. This means the capacitor can safely operate in circuits where the voltage does not exceed 50V.
- **104**: The capacitance value is encoded using a three - digit code. The first two digits (10) are the significant figures, and the third digit (4) is the multiplier. So, the capacitance value is calculated as \(10\times10^{4}\) pF, which is equal to 0.1 μF (since 1 μF = \(10^{6}\) pF).
- **K**: It indicates the tolerance of the capacitance value. “K” stands for a tolerance of ±10%. This means that the actual capacitance of the capacitor can vary between 0.09 μF and 0.11 μF.
## 3. Electrical Characteristics
### Capacitance
With a nominal capacitance of 0.1 μF, the C1005X7R1H104K capacitor can store and release electrical charge as required by the circuit. This capacitance value is suitable for a wide range of applications, including decoupling, filtering, and coupling in electronic circuits.
### Temperature Stability
Thanks to the X7R dielectric, the capacitor maintains a relatively stable capacitance over a wide temperature range from -55°C to +125°C. This makes it reliable for use in environments with varying temperatures, such as automotive electronics, industrial control systems, and outdoor electronic devices.
### Voltage Rating
The rated voltage of 50V ensures that the capacitor can withstand the electrical stress in circuits operating at or below this voltage level. It provides a safety margin to prevent breakdown and ensure long - term reliability.
### Equivalent Series Resistance (ESR)
The ESR of the C1005X7R1H104K capacitor is relatively low. A low ESR is beneficial in applications where high - frequency performance is required, such as in power supply filtering. It helps to reduce power losses and improve the efficiency of the circuit.
## 4. Physical Characteristics
### Size and Package
As mentioned earlier, the 1005 size
Images for reference
C Series 0402
Image Preview
Image Preview