CRCW12064K70FKEA
Surface mount thick film resistors, 4.7kΩ, 1%, 1206 size
Manufacturer： ['dale', 'vishay', 'vishay-draloric']
series introduction
# Introduction to the CRCW12064K70FKEA Product Series
## 1. Overview
The CRCW12064K70FKEA belongs to a specific series of surface - mount resistors. These resistors are crucial components in modern electronic circuits, playing a fundamental role in controlling current flow, voltage division, and signal attenuation. The "CRCW" is often the product family code, "1206" refers to the package size, "4K70" indicates the resistance value, and "FKEA" may represent specific manufacturing or performance - related codes.
## 2. Package Size (1206)
### Physical Dimensions
The 1206 package is a widely used standard in the electronics industry. It has a length of approximately 3.2 mm and a width of about 1.6 mm. This relatively large size compared to some other surface - mount packages offers several advantages.
### Handling and Assembly
It is easier to handle during the manufacturing process, both for manual and automated assembly. Automated pick - and - place machines can accurately position 1206 resistors on printed circuit boards (PCBs). The larger size also provides better mechanical stability on the PCB, reducing the risk of dislodgment due to vibrations or mechanical stress.
## 3. Resistance Value (4K70)
### Explanation of the Value
The "4K70" notation represents a resistance value of 4.70 kΩ (kilo - ohms). Resistance is a measure of how much a component opposes the flow of electric current. In a circuit, a 4.70 kΩ resistor can be used in a variety of applications.
### Common Applications
- **Voltage Division**: In a voltage divider circuit, it can be combined with other resistors to create a specific output voltage. For example, if used in a simple two - resistor voltage divider with a known input voltage, the 4.70 kΩ resistor can help in obtaining a desired fraction of that input voltage at the output.
- **Biasing Circuits**: In transistor or amplifier circuits, it can be used to set the proper bias conditions. By providing the right amount of current and voltage to the active components, it ensures the circuit operates in the desired mode.
## 4. Tolerance (F)
### Meaning of Tolerance
The "F" in the product code typically indicates a tolerance of ±1%. Tolerance refers to the allowable deviation from the nominal resistance value. For a 4.70 kΩ resistor with a ±1% tolerance, the actual resistance value can range from 4.70 kΩ - (4.70 kΩ×0.01)=4.653 kΩ to 4.70 kΩ+(4.70 kΩ×0.01) = 4.747 kΩ.
### Importance in Applications
In precision circuits, such as measurement equipment, audio amplifiers, and communication systems, a low - tolerance resistor like this is essential. It ensures that the circuit performance remains consistent and accurate, minimizing errors due to variations in resistance values.
## 5. Power Rating
### Typical Power Rating
The CRCW1206 series usually has a power rating of around 0.25 W. Power rating is an important parameter as it determines the maximum amount of power the resistor can safely dissipate without overheating.
### Considerations in Circuit Design
When designing a circuit, the power dissipated by the resistor (calculated using the formula \(P = I^{2}R\) or \(P=\frac{V^{2}}{R}\), where \(P\) is power, \(I\) is current, \(V\) is voltage,
Images for reference
CRCW-1206
SMD Thick Film Side
SMD Thick Film Top