RC0402FR-0711K3L
Surface-mount thick film resistors, 11.3K ohm, 1% tolerance
Manufacturer： yageo
series introduction
# Introduction to the RC0402FR - 0711K3L Product Series
## 1. Overview
The RC0402FR - 0711K3L belongs to a specialized series of electronic components, specifically surface - mount resistors. These resistors play a crucial role in a wide range of electronic circuits, where they are used to control current flow, divide voltages, and terminate transmission lines. The "RC0402" indicates the resistor's package size, which is a standard 0402 surface - mount package. This compact size makes it ideal for use in high - density printed circuit boards (PCBs) where space is at a premium.
## 2. Package Dimensions and Physical Characteristics
### Package Size
The 0402 package is extremely small, with a length of approximately 1.00 mm and a width of about 0.50 mm. This miniature size allows for a high component density on the PCB, enabling the design of smaller and more portable electronic devices. The low profile of the resistor also contributes to a reduced overall height of the assembled PCB, which is beneficial for applications with strict space constraints, such as mobile phones, wearables, and other handheld devices.
### Construction
The resistor is typically constructed using a thin - film technology. A thin layer of resistive material is deposited on a ceramic substrate. This construction method offers several advantages, including high precision, low noise, and good temperature stability. The ceramic substrate provides excellent mechanical and thermal properties, ensuring the resistor can withstand the rigors of the manufacturing process and normal operating conditions.
## 3. Electrical Specifications
### Resistance Value
The "11K3" in the part number indicates the resistance value of the resistor, which is 11.3 kΩ (kilohms). This specific resistance value is carefully calibrated during the manufacturing process to meet tight tolerance requirements.
### Tolerance
The "FR" in the part number often implies a high - precision resistor with a tight tolerance. For this series, the tolerance is typically ±1%. This means that the actual resistance value of the resistor will be within 1% of the nominal 11.3 kΩ value. A tight tolerance is essential in applications where precise control of current and voltage is required, such as in precision measurement circuits, sensor interfaces, and analog signal processing circuits.
### Power Rating
The power rating of the RC0402FR - 0711K3L is designed to handle a certain amount of electrical power without overheating. For a 0402 package resistor, the typical power rating is around 0.063 W (63 mW). This power rating determines the maximum amount of power that the resistor can safely dissipate under normal operating conditions. It is important to ensure that the power dissipated by the resistor in the circuit does not exceed this rating to prevent damage to the component.
### Temperature Coefficient of Resistance (TCR)
The TCR of this resistor series is relatively low, typically in the range of ±100 ppm/°C. The TCR indicates how much the resistance value of the resistor changes with temperature. A low TCR means that the resistance value remains relatively stable over a wide temperature range. This is crucial in applications where the operating temperature may vary, such as in automotive electronics, industrial control systems, and outdoor - use electronic devices.
## 4. Applications
### Consumer Electronics
In mobile phones, tablets, and smartwatches, the RC0402FR - 0711K3L can be used in power management circuits, signal conditioning circuits, and audio amplifier circuits. Its small size allows for the integration of more components on the PCB, enabling the development of thinner and lighter devices.
### Automotive Electronics
In automotive applications, these resistors can
Images for reference
CRSM RL0402
Thick Film Resistor Side
Thick Film Resistor Top