RC0402FR-07240KL
Compact 240K ohm thick film resistors for surface-mount applications
Manufacturer： yageo
series introduction
# Introduction to the RC0402FR - 07240KL Product Series
## 1. Overview
The RC0402FR - 07240KL belongs to a high - performance resistor product series. Resistors are fundamental passive electronic components that play a crucial role in a wide range of electronic circuits. This particular series is designed to meet the demanding requirements of modern electronic devices, offering reliable performance, precision, and stability.
## 2. Product Specifications
### Physical Dimensions
The "0402" in the product code indicates the standard surface - mount device (SMD) package size. In the imperial system, it measures approximately 0.04 inches by 0.02 inches, which is equivalent to 1.0mm x 0.5mm in the metric system. This compact size makes it ideal for use in densely populated printed circuit boards (PCBs), where space is often at a premium. It allows for high - density component placement, enabling the design of smaller and more portable electronic devices.
### Resistance Value
The "240K" in the product code represents the resistance value of the resistor. It has a resistance of 240,000 ohms (240 kΩ). This specific resistance value is carefully calibrated during the manufacturing process to ensure accuracy within a certain tolerance range.
### Tolerance
The "07" in the product code indicates the tolerance level of the resistor. A tolerance of ±1% means that the actual resistance value of the resistor can vary by a maximum of 1% from the stated 240 kΩ value. For example, the actual resistance could be anywhere between 237.6 kΩ (240 kΩ - 1% of 240 kΩ) and 242.4 kΩ (240 kΩ+ 1% of 240 kΩ). This high - precision tolerance is essential in applications where accurate voltage division, current limiting, or signal conditioning is required.
### Temperature Coefficient
The resistor is designed to have a low temperature coefficient of resistance (TCR). A low TCR means that the resistance value of the resistor changes minimally with variations in temperature. This is important because temperature fluctuations can occur in various operating environments, and a stable resistance value ensures the consistent performance of the electronic circuit.
### Power Rating
The power rating of the RC0402FR - 07240KL is typically designed to handle a certain amount of power dissipation. For a 0402 - sized resistor, the power rating is usually in the range of a few hundred milliwatts. This power rating determines the maximum amount of power that the resistor can safely dissipate without overheating or experiencing significant changes in its electrical properties.
## 3. Electrical Performance
### Voltage and Current Handling
Based on its resistance value and power rating, the resistor can handle specific voltage and current levels. Using Ohm's law (V = IR, where V is voltage, I is current, and R is resistance), for a 240 kΩ resistor, if the power rating is, for example, 100 mW, we can calculate the maximum allowable current and voltage. From \(P = I^{2}R\), we can find the maximum current \(I=\sqrt{\frac{P}{R}}\). Substituting \(P = 0.1W\) and \(R = 240000\Omega\), we get \(I=\sqrt{\frac{0.1}{240000}}\approx0.65mA\). And the maximum voltage \(V = IR\), so \(V=0.65\times10^{- 3}\times240000 =
Images for reference
CRSM RL0402
Thick Film Resistor Side
Thick Film Resistor Top