470R 5% 0805 Chip Resistor (Reel of 5000)

470R 5% 0805 Chip Resistor: An Overview

47K 1% 0805 chip resistor is a surface-mount device (SMD) used in electronic circuits to provide a precise resistance value of 47,000 ohms (47KΩ) with a tolerance of 1%. This component is encased in an 0805 package, indicating its dimensions are approximately 0.08 inches long and 0.05 inches wide (2.0 mm × 1.25 mm). Chip resistors like this one are essential for controlling current flow, dividing voltages, and managing signal levels in a wide range of electronic devices.

Specification

1. Resistance Value: 47KΩ
2. Tolerance: ±1%
3. Package Type: 0805 (2.0 mm × 1.25 mm)
4. Power Rating: 1/8W (0.125W)
5. Temperature Coefficient: ±100 ppm/°C (parts per million per degree Celsius)
6. Operating Temperature Range: -55°C to +155°C
7. Max Working Voltage: Typically 150V
8. Endurance: High stability under various environmental conditions
9. Failure Rate: Generally very low, providing high reliability
10. Material: Typically a combination of metal film or thick film on a ceramic substrate

Features

1. Precision Tolerance: The 1% tolerance ensures that the resistance value remains within 1% of 47KΩ, crucial for applications requiring high accuracy.
2. Compact Size: The 0805 package allows for high-density mounting on printed circuit boards (PCBs), saving space and enabling more compact device designs.
3. Surface Mount Technology (SMT): Simplifies the manufacturing process and enhances the reliability of the connections compared to through-hole components.
4. High Stability and Reliability: Designed to maintain performance over a wide range of environmental conditions.
5. Low Noise: Metal film resistors, often used in these chip resistors, provide low noise operation, which is essential for high-precision analog circuits.
6. Automated Placement: Suitable for automated pick-and-place equipment used in modern PCB assembly lines, ensuring efficient and consistent manufacturing.

Applications

1. Consumer Electronics: Used in devices like smartphones, tablets, laptops, and wearables for various functions such as voltage dividers, current limiting, and signal conditioning.
2. Industrial Equipment: Employed in control systems, measurement instruments, and automation equipment where precise resistance values are necessary for accurate operation.
3. Automotive Electronics: Utilized in engine control units, infotainment systems, and various sensors and actuators within vehicles.
4. Medical Devices: Incorporated in diagnostic equipment, patient monitoring systems, and therapeutic devices that require high precision and reliability.
5. Communication Systems: Essential in routers, switches, and other networking hardware for signal processing and impedance matching.
6. Power Supplies: Helps in regulating and stabilizing output voltages in power supply circuits.

Developments

1. Miniaturization Trends: Ongoing developments in reducing the size of components without compromising performance are leading to even smaller package sizes beyond 0805.
2. Enhanced Materials: Advances in material science are providing more stable and reliable resistors with better temperature coefficients and lower noise.
3. Increased Power Ratings: Efforts are being made to increase the power rating of smaller resistors, allowing them to handle more power in compact designs.
4. Integration in Advanced PCBs: Development in PCB technology allows for more efficient thermal management and higher component density, making resistors like the 47K 1% 0805 integral to high-performance circuits.
5. Automated Assembly Improvements: Innovations in automated assembly technology are increasing the precision and speed at which these resistors can be placed, enhancing manufacturing efficiency.

InstructWion for Use

1. Handling and Storage:
   • Store in a dry environment to prevent moisture absorption.
   • Avoid exposure to extreme temperatures which might affect the resistor’s tolerance and stability.
2. Soldering:
   • Use a reflow soldering process to attach the 0805 chip resistor to the PCB.
   • Ensure the solder paste is applied accurately to the pads.
   • Control the reflow oven temperature profile to prevent overheating and potential damage.
3. Placement:
   • Utilize automated pick-and-place machinery for precise placement.
   • Verify the orientation and position of the resistor on the PCB to ensure proper functionality.
4. Testing:
   • After soldering, inspect the joints for proper solder coverage and connection.
   • Use an ohmmeter to verify the resistance value within the specified tolerance.
5. Circuit Design Considerations:
   • Ensure the resistor’s power rating is not exceeded in the application.
   • Consider the resistor’s tolerance and temperature coefficient in precision circuits to maintain accuracy.
   • Factor in the resistor’s role in the overall circuit design, such as voltage division or current limiting, and verify its placement and value.

By adhering to these instructions and considering the specifications and features of the 47K 1% 0805 chip resistor, designers and engineers can effectively incorporate this component into a wide range of electronic applications, ensuring reliable and precise performance.

Also buy this resistor in pack of 100: (Pack of 100)

For more services: Click here