20Ω 1/4W resistor

The 20Ω 1/4W resistor is a common passive electronic component used to limit current, divide voltages, and provide biasing in electronic circuits. With a power rating of 1/4 watt (0.25W), it is suitable for low to moderate power applications. The resistor helps in controlling the flow of electrical current within a circuit to ensure proper operation and protection of sensitive components.

Key Features:

• Resistance of 20Ω
• Power rating of 1/4 watt (0.25W)
• Precision and stability in resistance value
• Standard tolerance of ±5% or ±1% (varies by manufacturer)
• Suitable for various electronic applications

Technical Specifications:

• Resistance: 20Ω
• Power Rating: 1/4 watt (0.25W)
• Tolerance: ±5% or ±1% (varies by manufacturer)
• Temperature Coefficient: Varies by type (e.g., ±100ppm/°C)
• Body Size: Typically cylindrical (e.g., 3.2mm diameter x 6.5mm length for through-hole resistors)
• Mounting Type: Through-hole or surface-mount
• Material: Metal film, carbon film, or wirewound (varies by type)

Applications:

• Current Limiting: Protects components by limiting the amount of current flowing through the circuit.
• Voltage Division: Used in voltage divider circuits to obtain a desired voltage.
• Biasing: Provides biasing for transistors and other semiconductor devices.
• Signal Conditioning: Helps in filtering and conditioning electronic signals.
• Load Resistors: Acts as a load in circuits for testing and calibration.

Usage:

1. Identify the resistor’s resistance value and power rating suitable for your circuit.
2. Choose the appropriate resistor type (e.g., through-hole or surface-mount) based on your PCB design.
3. Insert the resistor into the designated location on the PCB.
4. Solder the resistor leads or pads, ensuring secure and reliable connections.
5. Verify circuit functionality to ensure correct operation with the installed resistor.

Caution:

• Ensure the resistor’s power rating is not exceeded to prevent overheating and damage.
• Verify the correct resistance value and tolerance to match circuit requirements.
• Handle with care to avoid physical damage, which may affect performance.