91Ω 1/4W resistor

The 91Ω 1/4W resistor is a fixed-value resistor designed for various electronic applications. It provides a resistance of 91 ohms and can dissipate up to 1/4 watt of power. This type of resistor is commonly used in electronic circuits to limit current, divide voltages, and provide biasing.

Key Features:

• Resistance: 91 ohms
• Power Rating: 1/4 watt (0.25W)
• Tolerance: Typically ±5% (can vary by manufacturer)
• Type: Carbon film or metal film

Technical Specifications:

• Resistance: 91Ω
• Power Rating: 1/4W (0.25W)
• Tolerance: ±5% (standard), other tolerances available
• Temperature Coefficient: Typically ±100ppm/°C to ±300ppm/°C (varies by type)
• Operating Temperature Range: -55°C to +155°C
• Body Color: Commonly beige or blue (depends on manufacturer)
• Lead Type: Axial leads for through-hole mounting
• Dimensions: Length and diameter can vary, but typically around 6.3mm x 2.3mm

Applications:

• Current Limiting: Used to limit the current flowing through a circuit.
• Voltage Division: Used in voltage divider circuits to obtain a desired voltage.
• Biasing: Provides biasing in amplifier and transistor circuits.
• Pull-up/Pull-down: Acts as pull-up or pull-down resistors in digital circuits.
• Timing Circuits: Used in conjunction with capacitors for timing applications.

Usage:

1. Identify the Correct Resistance Value: Ensure that 91Ω is the required resistance for your circuit.
2. Check the Power Rating: Verify that 1/4W is sufficient for your application to avoid overheating.
3. Position on PCB: Place the resistor in the appropriate location on the printed circuit board (PCB).
4. Soldering: Solder the axial leads of the resistor to the PCB, ensuring good mechanical and electrical connections.
5. Verification: Test the circuit to ensure proper functionality and that the resistor is operating within its specified limits.

Caution:

• Power Dissipation: Do not exceed the 1/4 watt power rating to prevent damage or failure.
• Temperature Range: Operate within the specified temperature range to ensure reliable performance.
• Handling: Handle with care to avoid mechanical damage to the resistor body and leads.