RC0402FR-07120KL
Compact thick film resistors for surface-mount electronic circuits
Manufacturer： yageo
series introduction
# Introduction to the RC0402FR - 07120KL Product Series
## 1. Overview
The RC0402FR - 07120KL is a part of a high - performance resistor product series that is designed to meet the diverse needs of modern electronic circuits. These resistors are engineered with precision and reliability in mind, making them suitable for a wide range of applications across various industries.
## 2. Physical Characteristics
### Size and Package
The "0402" in the product code refers to the industry - standard surface - mount device (SMD) package size. In the metric system, a 0402 package measures approximately 1.0mm x 0.5mm. This compact size makes the RC0402FR - 07120KL ideal for use in densely populated printed circuit boards (PCBs), where space is at a premium. It allows for high - density component placement, enabling the design of smaller and more portable electronic devices.
### Construction
These resistors are constructed using a thin - film technology. The thin - film resistive element is deposited on a ceramic substrate, which provides excellent mechanical stability and thermal performance. The ceramic substrate also offers good electrical insulation, reducing the risk of electrical interference between components on the PCB.
## 3. Electrical Specifications
### Resistance Value
The "120K" in the product code indicates the resistance value of the resistor, which is 120 kilohms (120,000 ohms). This specific resistance value is commonly used in a variety of electronic circuits, such as voltage dividers, signal conditioning circuits, and biasing circuits for transistors and integrated circuits.
### Tolerance
The "FR" in the product code typically represents a tight tolerance. In this case, the resistor has a tolerance of ±1%. This means that the actual resistance value of the RC0402FR - 07120KL will be within 1% of the stated 120 kilohm value. A low tolerance is crucial in applications where precise resistance values are required for accurate circuit operation, such as in precision measurement equipment and high - end audio amplifiers.
### Temperature Coefficient
The temperature coefficient of resistance (TCR) is an important parameter that describes how the resistance of a resistor changes with temperature. The RC0402FR - 07120KL has a low TCR, which ensures that the resistance value remains relatively stable over a wide temperature range. This is essential for maintaining the performance and reliability of electronic circuits in different environmental conditions, from low - temperature industrial settings to high - temperature automotive applications.
### Power Rating
The power rating of the RC0402FR - 07120KL is designed to handle a certain amount of electrical power without overheating. For this product series, the power rating is typically suitable for low - power applications. It is important to ensure that the power dissipated by the resistor in the circuit does not exceed its rated power to prevent damage and ensure long - term reliability.
## 4. Performance and Reliability
### Stability
Due to its thin - film construction and low TCR, the RC0402FR - 07120KL offers excellent long - term stability. The resistance value remains consistent over time, even under continuous operation and exposure to various environmental factors. This stability is crucial for applications where the performance of the circuit must remain constant over an extended period, such as in medical devices and aerospace electronics.
### Noise Performance
These resistors exhibit low noise characteristics, which is important in applications where signal integrity is critical. Low noise ensures that the resistor does not introduce unwanted electrical noise into the circuit, which could degrade the quality of the signal being processed. This makes the RC04
Images for reference
CRSM RL0402
Thick Film Resistor Side
Thick Film Resistor Top