3.3Ω 1/4W resistor

A 3.3Ω (ohm) 1/4 watt resistor is a fixed resistor with a resistance value of 3.3 ohms and a power dissipation rating of 0.25 watts (1/4W). It is used in electronic circuits for current limiting, voltage division, and other functions requiring precise resistance.

Key Features:

• Resistance: 3.3Ω
• Power Rating: 1/4W (0.25 watts)
• Tolerance: ±5% (commonly), with ±1% available for precision types
• Temperature Coefficient: Typically ±100ppm/°C or ±200ppm/°C for general-purpose resistors

Technical Specifications:

• Resistance: 3.3Ω
• Power Rating: 1/4W (0.25 watts)
• Tolerance: ±5% (J), ±1% (F), depending on the specific resistor type
• Temperature Coefficient: ±100ppm/°C or ±200ppm/°C
• Operating Temperature Range: -55°C to +155°C
• Body Size: Typically through-hole with axial leads (1/4W size)
• Material: Carbon film, metal film, or metal oxide, depending on the type

Applications:

• Current Limiting: Used to control the current flowing through a circuit, protecting components from excessive current.
• Voltage Division: Employed in voltage divider circuits to create specific voltage levels.
• Biasing: Used in transistor biasing circuits to set the operating point.
• Signal Conditioning: Adjusts signal levels in various signal processing applications.
• LED Protection: Limits current through LEDs to prevent damage.

Usage:

1. Placement: Identify the correct location on the circuit board.
2. Insertion: Insert the leads of the resistor into the appropriate holes in the PCB.
3. Soldering: Solder the leads to the PCB pads and trim excess leads.
4. Verification: Check the resistance with a multimeter to ensure proper installation.

Caution:

• Power Dissipation: Ensure the resistor is not subjected to more than 0.25 watts to prevent overheating.
• Voltage Rating: Verify that the voltage across the resistor does not exceed its rating.
• Handling: Handle carefully to avoid physical damage to the resistor.