C1608X5R1E225K
Compact 2.2uF ceramic capacitors for surface-mount electronic circuits
Manufacturer： tdk
series introduction
# Introduction to the C1608X5R1E225K Product Series
## 1. General Overview
The C1608X5R1E225K product series belongs to the category of multilayer ceramic capacitors (MLCCs). These capacitors are fundamental passive electronic components widely used in various electronic circuits to store and release electrical energy, filter signals, and stabilize voltage levels.
## 2. Product Naming Convention
Let's break down the product code "C1608X5R1E225K" to understand its key specifications:
- **C**: Usually indicates that it is a capacitor.
- **1608**: This refers to the physical size of the capacitor, also known as the chip size. In the metric system, 1608 corresponds to a length of 1.6 mm and a width of 0.8 mm. This compact size makes it suitable for applications where space is limited, such as in mobile devices, wearable electronics, and small - form - factor circuit boards.
- **X5R**: It represents the dielectric material and temperature characteristic of the capacitor. The "X" indicates that the lower temperature limit of the capacitor's operating temperature range is - 55°C. The "5" means the upper temperature limit is + 85°C. The "R" indicates that the capacitance change over this temperature range is within ±15%. This makes the C1608X5R1E225K suitable for applications where the operating temperature may vary, but a relatively stable capacitance value is required.
- **1E**: In the capacitor's voltage rating code, "1E" corresponds to a rated voltage of 25V. This means that the capacitor can safely operate at a maximum DC voltage of 25 volts without significant risk of breakdown or damage.
- **225**: This is the capacitance value code. Using the standard capacitor value coding system, the first two digits (22) are the significant figures, and the third digit (5) is the multiplier. So, the capacitance value is \(22\times10^{5}\) pF, which is equal to 2.2 μF.
- **K**: It represents the tolerance of the capacitance value. A "K" tolerance means that the actual capacitance value of the capacitor can deviate from the nominal value (2.2 μF in this case) by ±10%.
## 3. Electrical Characteristics
### Capacitance
With a nominal capacitance of 2.2 μF, the C1608X5R1E225K can store a relatively large amount of electrical charge compared to smaller - value capacitors. This makes it useful in applications such as power supply filtering, where it can smooth out the ripple voltage in a DC power supply by storing and releasing charge as needed.
### Voltage Rating
The 25V rated voltage allows the capacitor to be used in a wide range of low - to medium - voltage circuits. For example, it can be used in battery - powered devices, USB - powered circuits, and many consumer electronics applications where the operating voltage is typically in the range of a few volts to 25 volts.
### Temperature Stability
Thanks to the X5R dielectric, the capacitor maintains a relatively stable capacitance value over a temperature range of - 55°C to + 85°C. This is crucial in applications where the temperature may fluctuate, such as automotive electronics (in non - engine - compartment areas), industrial control systems, and outdoor - use electronic devices.
### Equivalent Series Resistance (ESR)
The ESR of the C1608X5R1E225K is relatively low, which is beneficial for high - frequency applications. A low
Images for reference
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C Series 0603(1608 Metric) 9
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