T491B334

series introduction

# Introduction to the T491B334 Product Series

## Overview
The T491B334 product series is a remarkable line of electronic components that has been engineered to meet the diverse and demanding requirements of modern electronic circuits. These components are a type of tantalum capacitors, which are well - known for their high capacitance per volume, excellent stability, and reliability. The T491B334 series stands out in the market due to its unique combination of features, making it suitable for a wide range of applications.

## Key Specifications

### Capacitance
The "334" in the T491B334 model number indicates its capacitance value. Using the standard capacitor coding system, 334 translates to 33 x 10⁴ picofarads (pF), which is equivalent to 0.33 microfarads (μF). This capacitance value is carefully chosen to provide the right amount of charge storage for various circuit designs, allowing for effective filtering, coupling, and energy storage functions.

### Voltage Rating
The T491B334 series comes with a specific voltage rating. This rating determines the maximum voltage that the capacitor can safely withstand without experiencing breakdown or other forms of failure. The appropriate voltage rating ensures the long - term reliability of the component in the circuit. For example, in power supply circuits, the voltage rating must be higher than the maximum voltage that the capacitor will encounter during normal operation.

### Tolerance
Capacitor tolerance refers to the allowable deviation from the nominal capacitance value. The T491B334 series has a defined tolerance range, which is crucial for circuits where precise capacitance values are required. A tight tolerance ensures that the circuit operates as intended, especially in applications such as oscillators and filters, where small changes in capacitance can significantly affect the performance.

### Temperature Range
These capacitors are designed to operate within a specific temperature range. The T491B334 series can withstand a wide range of temperatures, from relatively low to high values. This temperature stability is essential for applications in different environments, such as automotive electronics, where components may be exposed to extreme temperature variations. The ability to maintain performance over a wide temperature range ensures the reliability and functionality of the overall system.

## Construction and Design

### Tantalum Dielectric
The T491B334 series uses tantalum as the dielectric material. Tantalum is a highly effective dielectric due to its high dielectric constant. This property allows the capacitors to achieve a relatively high capacitance in a small physical size. Compared to other types of capacitors, tantalum capacitors can store more charge per unit volume, making them ideal for applications where space is limited.

### Hermetic Sealing
The capacitors in the T491B334 series are hermetically sealed. This sealing protects the internal components from environmental factors such as moisture, dust, and chemicals. Hermetic sealing helps to maintain the long - term stability and reliability of the capacitors, reducing the risk of performance degradation over time. It also ensures that the electrical characteristics of the capacitors remain consistent, even in harsh operating conditions.

### Package Design
The T491B334 series is available in a variety of package designs. These packages are designed to be compatible with different circuit board layouts and assembly processes. The package design also affects the thermal performance of the capacitors, as it can provide a path for heat dissipation. Some packages are designed for surface - mount technology (SMT), which allows for automated assembly and is suitable for high - volume production. Others may be designed for through - hole mounting, which is often used in applications where higher mechanical stability is required.

## Applications

### Power Supply Circuits
In power supply circuits, the T491B334 series capacitors play a crucial role

Images for reference

T491 SERIES 3.5L,2.8W

T491 SERIES 3.5L,2.8W

T49x, T5xx Series_B-side1

Datasheets

• T491 Series
• T491B334K050AT
• T491 Series

Partlist