C2012X5R1E475K
Compact 4.7uF ceramic capacitors for SMD applications, 25V, X5R dielectric
Manufacturer： tdk
series introduction
# Introduction to the C2012X5R1E475K Product Series
## 1. General Overview
The C2012X5R1E475K product series belongs to the category of multilayer ceramic capacitors (MLCCs). These components are fundamental building blocks in modern electronic circuits, playing a crucial role in a wide range of applications due to their unique electrical properties and physical characteristics.
## 2. Product Naming Convention
Let's break down the product code “C2012X5R1E475K” to understand its key features:
- **C**: This typically indicates that the product is a capacitor.
- **2012**: Refers to the physical size of the capacitor, also known as the imperial size code. In the imperial system, 2012 corresponds to a length of 0.20 inches (5.08 mm) and a width of 0.12 inches (3.05 mm). This size is relatively common and offers a good balance between capacitance value, physical space requirements, and electrical performance.
- **X5R**: This is the temperature characteristic code. X5R capacitors are classified as Class II ceramic capacitors. The “X” indicates that the capacitor can operate in a temperature range from -55°C to +85°C. The “5R” means that the capacitance change over this temperature range is within ±15%. This makes X5R capacitors suitable for applications where moderate temperature stability is required.
- **1E**: The “1E” represents the voltage rating. In the EIA standard, “1E” corresponds to a voltage rating of 25V. This means that the capacitor is designed to operate safely at a maximum DC voltage of 25 volts.
- **475**: This is the capacitance value code. In the three - digit code system, the first two digits are the significant figures, and the third digit is the multiplier. For “475”, the significant figures are 47, and the multiplier is 10⁵. So, the capacitance value is 47 × 10⁵ pF, which is equivalent to 4.7 μF (since 1 μF = 10⁶ pF).
- **K**: This is the tolerance code. “K” indicates a tolerance of ±10%. So, the actual capacitance of the C2012X5R1E475K capacitor can vary between 4.23 μF (4.7 μF - 10%) and 5.17 μF (4.7 μF + 10%).
## 3. Electrical Characteristics
### Capacitance
With a nominal capacitance of 4.7 μF, the C2012X5R1E475K capacitor can store and release electrical charge effectively. This capacitance value makes it suitable for applications such as power supply filtering, where it can smooth out voltage fluctuations and reduce ripple in DC power lines.
### Voltage Rating
The 25V voltage rating ensures that the capacitor can handle electrical stress within the specified limit. It is important to note that exceeding the voltage rating can lead to dielectric breakdown, which may damage the capacitor and the surrounding circuitry.
### Temperature Stability
As an X5R capacitor, it offers relatively good temperature stability within the - 55°C to +85°C range. This makes it suitable for use in environments where the temperature may vary, such as automotive electronics, industrial control systems, and consumer electronics.
### Equivalent Series Resistance (ESR)
The ESR of the C2012X5R1E475K capacitor is relatively low. A low ESR is beneficial
Images for reference
-10.jpg)
C Series 0805(2012 Metric) 10
C SERIES_2012-0805_1.45
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C Series 0805(2012 Metric) 13