2.2Ω 1/4W resistor

A 2.2Ω (ohm) 1/4 watt resistor is a fixed resistor with a resistance value of 2.2 ohms and a power dissipation rating of 0.25 watts (1/4W). This resistor is used in various electronic circuits for functions such as current limiting, voltage division, and precise resistance applications.

Key Features:

• Resistance: 2.2Ω
• 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: 2.2Ω
• 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 limit the current in electronic circuits to protect sensitive components.
• Voltage Division: Employed in voltage divider circuits to obtain specific voltage levels.
• Biasing: Utilized in circuits to set the operating point of transistors and other components.
• Signal Conditioning: Helps in adjusting signal levels in various signal processing applications.
• LED Protection: Limits current through LEDs to ensure proper operation and longevity.

Usage:

1. Placement: Determine the correct location on the PCB where the resistor is needed.
2. Insertion: Insert the resistor’s leads into the designated holes on the circuit board.
3. Soldering: Solder the leads to the PCB pads and trim any excess leads.
4. Verification: Use a multimeter to check the resistance and ensure proper installation.

Caution:

• Power Dissipation: Ensure the resistor does not exceed its 0.25-watt power rating to prevent overheating.
• Voltage Rating: Ensure the voltage across the resistor does not exceed its rating.
• Handling: Handle carefully to avoid damage.