2.2 Ohm 0.5W Carbon Film Resistor - 5% Tolerance (Pack of 5)

Product Description 

The 2.2 Ohm 1/2 Watt Resistor is a robust, low-resistance passive component designed for applications requiring high current throughput and enhanced heat dissipation. With an upgraded 0.5W power rating, it provides double the capacity of standard resistors to handle thermal loads in current-sensing and power-filtering circuits. Featuring a 5% tolerance and high-stability carbon film construction, these resistors are essential for protecting sensitive semiconductors and managing inrush current in power supply designs.

Key Features

• High Power Dissipation: Rated at 0.5 Watts, allowing for safe operation in low-ohmic, high-current paths without overheating.

• Low Ohmic Precision: Optimized for minimal voltage drops, making it ideal for shunt applications and circuit protection.

• Breadboard Friendly: Features thick axial leads that ensure a secure connection in solderless breadboards and universal PCBs.

• Clear Color Identification: Marked with standard 4-band coding (Red, Red, Golden, Gold) for rapid manual value verification.

• Safety Grade Coating: Finished with a flame-retardant lacquer to enhance durability and prevent oxidation in humid environments.

Technical Details

• Maximum Working Voltage: Rated for stable operation up to 350V AC/DC in standard circuit environments.

• Overload Surge Capacity: Can withstand short-duration peak surges up to 700V without immediate failure.

• Operating Temperature Range: Reliable performance maintained across a range of -55°C to +155°C.

• Temperature Coefficient: Typically rated at ±450 ppm/°C, ensuring minimal drift during high-load thermal cycles.

• Dielectric Strength: Offers high insulation protection up to 500V AC between the resistive element and surroundings.

• Lead Material: Solder-plated copper-clad steel leads for superior conductivity and mechanical pull-strength.

• Resistance Stability: Engineered to maintain values within ±3% after 1,000 hours of operation at maximum load.

• Enhanced Body Construction: Larger axial dimensions compared to 1/4W variants allow for superior air convection.

• Environmental Compliance: Fully RoHS compliant and lead-free for modern electronic assembly standards.

• Low Parasitic Inductance: Suitable for high-speed switching power supplies and basic signal damping.

• Moisture Protection: Sealed with multiple epoxy layers to prevent oxidation of the carbon element.

• Failure Mode: Designed to fail open-circuit during extreme overloads to protect sensitive downstream ICs.

• Precision Class: Standard Class J (±5%) providing a cost-effective solution for power-hungry projects.

• Solderability: Compatible with both manual soldering and industrial wave soldering processes.

• Indefinite Shelf Life: Protective lacquer ensures leads remain viable for long-term storage without degradation.