RCL122549R9FKEG

High-power thick film resistors for precision electronic circuits

Manufacturer: vishay

series introduction

# Introduction to the RCL122549R9FKEG Product Series

## Overview
The RCL122549R9FKEG product series represents a cutting - edge range of components designed to meet the diverse and demanding requirements of modern electronic applications. These components are engineered with precision and innovation, offering high - performance solutions for various industries, including telecommunications, automotive, consumer electronics, and industrial automation.

## Key Features

### 1. Electrical Performance
- **Resistance Precision**: The RCL122549R9FKEG series provides highly accurate resistance values. With a tolerance level that is tightly controlled, these components ensure consistent electrical behavior in circuits. This precision is crucial for applications where even the slightest deviation in resistance can lead to significant performance issues, such as in precision measurement equipment and high - end audio systems.
- **Low Noise**: These components are designed to minimize electrical noise. Low noise is essential in sensitive electronic circuits, as it helps to reduce interference and improve the signal - to - noise ratio. This makes the RCL122549R9FKEG series ideal for use in communication devices, where clear signal transmission is of utmost importance.
- **High Power Handling**: The series is capable of handling relatively high power levels. This feature allows the components to be used in applications that require the dissipation of significant amounts of power, such as power supplies and motor control circuits. The ability to handle high power without overheating or degrading performance ensures the reliability and longevity of the overall system.

### 2. Physical Characteristics
- **Compact Size**: The RCL122549R9FKEG components are designed with a compact form factor. Their small size makes them suitable for use in space - constrained applications, such as mobile devices and wearable electronics. Despite their small size, they do not compromise on performance, offering a high level of functionality in a limited space.
- **Robust Construction**: These components are built with a robust construction that can withstand harsh environmental conditions. They are resistant to mechanical shock, vibration, and temperature variations. This makes them suitable for use in automotive and industrial applications, where components are often exposed to challenging operating environments.

### 3. Compatibility
- **Surface - Mount Technology (SMT)**: The RCL122549R9FKEG series is designed for surface - mount technology. SMT components are easy to install on printed circuit boards (PCBs) using automated assembly processes, which reduces production time and cost. They also offer better electrical performance compared to through - hole components, as they have shorter lead lengths, which minimize parasitic effects.
- **Compatibility with Standard PCB Designs**: These components are designed to be compatible with standard PCB designs. This means that they can be easily integrated into existing circuit designs without the need for significant modifications. This compatibility simplifies the design process and reduces the time to market for new products.

## Applications

### 1. Telecommunications
- **Mobile Devices**: In smartphones and tablets, the RCL122549R9FKEG series can be used in power management circuits, RF front - end modules, and audio processing circuits. Their compact size and high - performance characteristics make them ideal for these space - constrained and high - functionality devices.
- **Base Stations**: For telecommunications base stations, these components can be used in power amplifiers, filters, and other critical circuits. Their ability to handle high power and provide low noise performance ensures reliable and efficient operation of the base stations.

### 2. Automotive
- **Engine Control Units (ECUs)**: In automotive ECUs, the RCL122549R9FKEG series can be used in sensor circuits, power supply circuits, and communication interfaces. Their robustness and ability to withstand high temperatures and vibrations

Images for reference

RCL1225

RCL1225

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Datasheets

Partlist

RCL122549R9FKEG