3Ω 1/4W resistor

A 3Ω (ohm) 1/4 watt resistor is a fixed resistor with a resistance value of 3 ohms and a power dissipation rating of 0.25 watts (1/4W). It is used in electronic circuits to limit current, divide voltages, and perform other functions requiring precise resistance.

Key Features:

• Resistance: 3Ω
• Power Rating: 1/4W (0.25 watts)
• Tolerance: ±5% (commonly), though other tolerances such as ±1% are available
• Temperature Coefficient: Typically ±100ppm/°C or ±200ppm/°C for general-purpose resistors

Technical Specifications:

• Resistance: 3Ω
• Power Rating: 1/4W (0.25 watts)
• Tolerance: ±5% (J), ±1% (F), depending on the type
• Temperature Coefficient: ±100ppm/°C or ±200ppm/°C
• Operating Temperature Range: -55°C to +155°C
• Body Size: Standard through-hole resistors typically come in axial packages (e.g., 1/4W size)
• Material: Carbon film, metal film, or metal oxide, depending on the specific resistor type

Applications:

• Current Limiting: Used to limit the amount of current flowing through a circuit.
• Voltage Division: Employed in voltage divider circuits to create specific voltage levels.
• Biasing: Used in transistor biasing circuits to set operating points.
• Signal Conditioning: Used in various signal processing applications to adjust signal levels.
• LED Protection: Used to limit current through LEDs to prevent damage.
• Timing Circuits: Paired with capacitors in RC timing circuits.

Usage:

1. Determine Placement: Identify the location on the circuit board where the resistor is needed.
2. Insert Resistor: For through-hole resistors, insert the leads into the appropriate holes on the PCB.
3. Soldering: Solder the leads to the PCB pads and trim any excess lead length.
4. Verify Installation: Ensure the resistor is securely soldered and check for proper resistance with a multimeter if needed.

Caution:

• Power Dissipation: Do not exceed the power rating (0.25W) to prevent overheating and potential damage.
• Voltage Rating: Ensure the voltage across the resistor does not exceed its voltage rating.
• Handling: Handle with care to avoid physical damage to the resistor body and leads.