RC0402JR-0724RL Series

series introduction

# Introduction to the RC0402JR - 0724RL Product Series

## 1. Overview
The RC0402JR - 0724RL product series belongs to the realm of surface - mount resistors, which are crucial components in modern electronic circuits. These resistors are designed to offer precise resistance values and reliable performance in a wide range of applications. The "RC0402" indicates the resistor's package size, following the standard surface - mount device (SMD) naming convention. The "JR" often represents a specific resistor type or series characteristic, and "0724R" denotes the resistance value, while the "L" might signify additional features or a particular variant within the series.

## 2. Package Dimensions and Physical Characteristics
### Package Size
The 0402 package is one of the most commonly used small - sized SMD packages in the electronics industry. It has a length of approximately 1.00 mm and a width of about 0.50 mm. This compact size makes the RC0402JR - 0724RL resistors ideal for use in densely populated printed circuit boards (PCBs), where space is at a premium. For example, in mobile devices such as smartphones and tablets, where multiple components need to be integrated into a small form factor, these resistors can be easily placed without taking up excessive space.
### Construction
These resistors are typically constructed using a thin - film or thick - film technology. The resistive element is deposited on a ceramic substrate, which provides excellent mechanical stability and thermal properties. The ends of the resistor are usually made of metal, which allows for easy soldering onto the PCB. The overall construction is designed to withstand the rigors of the manufacturing process, including high - temperature soldering and mechanical stress during assembly.

## 3. Electrical Characteristics
### Resistance Value
The resistance value of the RC0402JR - 0724RL is 24 ohms. This value is specified with a certain tolerance, which indicates the allowable deviation from the nominal value. For example, if the tolerance is ±1%, the actual resistance of the resistor can range from 23.76 ohms (24 - 1% of 24) to 24.24 ohms (24+ 1% of 24). This precise resistance value is crucial for many electronic circuits, such as voltage dividers, current - limiting circuits, and signal conditioning circuits.
### Power Rating
The power rating of these resistors is an important parameter that determines the maximum amount of power they can safely dissipate without overheating. The RC0402JR - 0724RL series typically has a relatively low power rating, usually in the range of 0.063 W to 0.1 W. This makes them suitable for low - power applications, such as in battery - powered devices where power consumption needs to be minimized.
### Temperature Coefficient
The temperature coefficient of resistance (TCR) is a measure of how the resistance of the resistor changes with temperature. A low TCR value indicates that the resistance remains relatively stable over a wide temperature range. The RC0402JR - 0724RL series is designed to have a low TCR, which ensures reliable performance in different environmental conditions. For example, in automotive electronics, where the temperature can vary significantly from - 40°C to 125°C, a resistor with a low TCR is essential to maintain the accuracy of the circuit.

## 4. Applications
### Consumer Electronics
In consumer electronics, such as smartwatches, wireless earbuds, and portable media players, the RC0402JR - 0724RL resistors are used in various

Images for reference

CRSM RL0402

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Datasheets

Partlist

RC0402JR-0724RL