T491D226K035ZT

series introduction

# Introduction to the T491D226K035ZT Product Series

## Overview
The T491D226K035ZT 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 coupling. The series is designed to meet the demanding requirements of modern electronic devices, offering high performance, reliability, and stability.

## Product Naming Convention
Let's break down the product code "T491D226K035ZT" to understand its key features:
- **T491**: This is the series identifier, which indicates the specific product line within the manufacturer's portfolio. It represents a set of design and performance characteristics that are common to all components in this series.
- **D**: This letter typically denotes the case size of the capacitor. Different case sizes are available to accommodate various circuit board layouts and space constraints.
- **226**: This number represents the capacitance value of the capacitor. In this case, 226 translates to 22 × 10⁶ picofarads (pF), which is equivalent to 22 microfarads (μF). Capacitance is a measure of the capacitor's ability to store electrical charge.
- **K**: This is the tolerance code. The "K" indicates a tolerance of ±10%. Tolerance refers to the allowable deviation from the specified capacitance value. A ±10% tolerance means that the actual capacitance of the capacitor can vary between 19.8 μF and 24.2 μF.
- **035**: This represents the rated voltage of the capacitor, which is 35 volts (V). The rated voltage is the maximum voltage that the capacitor can safely withstand without experiencing breakdown or other failures.
- **ZT**: These letters may represent additional features or specific product variants within the series, such as a particular termination style or packaging option.

## Key Features

### High Capacitance
With a capacitance value of 22 μF, the T491D226K035ZT capacitors can store a relatively large amount of electrical charge. This makes them suitable for applications that require significant energy storage, such as power supply filtering and decoupling.

### Low ESR (Equivalent Series Resistance)
The series is designed to have a low equivalent series resistance, which means that it can efficiently transfer electrical energy with minimal power loss. Low ESR is particularly important in high - frequency applications, as it helps to reduce voltage ripple and improve the overall performance of the circuit.

### Wide Temperature Range
These capacitors are capable of operating over a wide temperature range, typically from -55°C to +125°C. This makes them suitable for use in harsh environments where temperature variations are common, such as automotive, industrial, and aerospace applications.

### High Reliability
Tantalum capacitors are known for their high reliability and long service life. The T491D226K035ZT series is no exception, with built - in features to prevent failures such as short circuits and open circuits. This reliability is crucial in applications where system downtime can have serious consequences, such as medical devices and telecommunications equipment.

## Applications

### Power Supplies
In power supply circuits, the T491D226K035ZT capacitors are used for filtering and decoupling. They help to smooth out the DC voltage output by removing any ripple or noise, ensuring a stable power supply for the connected electronic components.

### Audio Circuits
These capacitors can be used in audio circuits for coupling and bypassing applications. They help to transfer audio signals between different stages of the circuit while blocking DC components, ensuring

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