T491A226K010AT
Solid SMD tantalum capacitors, 22μF, 10V, ±10%, for compact electronics
Manufacturer： kemet
series introduction
# Introduction to the T491A226K010AT Product Series
## Overview
The T491A226K010AT product series belongs to a specialized category of electronic components, specifically tantalum capacitors. These capacitors are crucial in a wide range of electronic circuits, providing essential functions such as energy storage, filtering, and decoupling. Their unique characteristics make them a popular choice for designers in various industries, including telecommunications, consumer electronics, automotive, and industrial applications.
## Key Specifications
### Capacitance
The "226" in the part number indicates a capacitance value of 22 μF (microfarads). Capacitance is a measure of a capacitor's ability to store electrical charge. A 22 μF capacitance is suitable for a variety of applications, such as power supply filtering, where it can smooth out voltage fluctuations and provide a stable power source to sensitive electronic components.
### Tolerance
The "K" in the part number represents a capacitance tolerance of ±10%. This means that the actual capacitance value of the capacitor can vary by up to 10% from the specified 22 μF. A relatively tight tolerance like this is important in applications where precise capacitance values are required for proper circuit operation.
### Voltage Rating
The "010" indicates a voltage rating of 10 V (volts). This means that the capacitor is designed to operate safely at a maximum voltage of 10 V. It is crucial to ensure that the voltage across the capacitor in a circuit does not exceed this rating to prevent damage to the capacitor and potential failure of the entire circuit.
### Temperature Coefficient
The T491A226K010AT series typically has a specified temperature coefficient, which describes how the capacitance value changes with temperature. This is important in applications where the operating temperature can vary significantly, as it ensures that the capacitor's performance remains stable over a wide temperature range.
## Construction and Design
### Tantalum Dielectric
These capacitors use tantalum as the dielectric material. Tantalum is a highly conductive metal with excellent dielectric properties, which allows for high capacitance values in a relatively small physical size. Tantalum capacitors also have low equivalent series resistance (ESR), which means they can handle high-frequency signals more effectively and dissipate less power as heat.
### Hermetic Sealing
The T491A226K010AT series is often hermetically sealed, which protects the internal components from moisture, dust, and other environmental factors. This sealing helps to ensure the long-term reliability and stability of the capacitor, making it suitable for use in harsh operating conditions.
### Surface Mount Technology (SMT)
The capacitors in this series are designed for surface mount technology (SMT), which means they can be directly mounted onto the surface of a printed circuit board (PCB). SMT components are smaller, lighter, and more suitable for automated assembly processes compared to through-hole components, making them ideal for modern electronic devices with high-density circuit boards.
## Applications
### Power Supply Filtering
One of the primary applications of the T491A226K010AT series is in power supply filtering. In a power supply circuit, the capacitor is used to smooth out the DC voltage by storing and releasing electrical energy as needed. This helps to reduce voltage ripple and noise, providing a clean and stable power source to the rest of the circuit.
### Decoupling
Decoupling is another important application of these capacitors. In a multi-component circuit, different components can generate electrical noise and interference that can affect the performance of other components. A decoupling capacitor is placed between the power supply and the component to isolate it from these noise sources, ensuring that the component receives a clean and stable power supply.
### Signal Coupling
Images for reference
T491 SERIES 3.2L,1.6W
T491 SERIES 3.2L,1.6W
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