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

Product Description The 220 Ohm 1/2 Watt Resistor is a fundamental passive component optimized for current regulation in medium-power circuits. With an upgraded 0.5W power rating, this resistor provides double the heat dissipation capacity of standard variants, making it the perfect choice for driving high-brightness LEDs from 12V sources or as a robust base resistor for power transistors. Its 5% tolerance and high-grade carbon film construction ensure consistent electrical performance across a wide range of prototyping and industrial applications.

Key Features

• Enhanced Thermal Stability: The 1/2 Watt rating ensures the component remains cool during continuous operation in current-heavy paths.

• LED Protection Ready: A standard value for protecting 5mm and 10mm LEDs in 5V to 12V DC circuits.

• Sturdy Axial Leads: Features thicker, tin-plated leads for a secure mechanical fit in solderless breadboards and PCBs.

• Standard Color Identification: Marked with a 4-band code (Red, Red, Brown, Gold) for rapid manual sorting and value verification.

• Flame-Retardant Coating: Coated with a protective lacquer to ensure safety and durability under thermal stress or humid conditions.

Technical Details

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

• Overload Surge Capacity: Capable of withstanding short-duration peak surges up to 700V without failure.

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

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

• Dielectric Strength: Provides 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 strong mechanical joints.

• Resistance Stability: Engineered to stay within ±3% of the nominal value after 1,000 hours of continuous rated load.

• Optimized Heat Dissipation: Larger body size than 1/4W resistors allows for better air convection and lower surface temperatures.

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

• Low Parasitic Inductance: Suitable for high-speed signal conditioning and basic RF filtering.

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

• Voltage Coefficient: Maintains resistance stability even under fluctuating voltage levels.

• Terminal Strength: Leads are designed to withstand repeated bending during prototyping without breakage.

• Audio Grade Performance: Low current-noise characteristics make it suitable for audio signal conditioning.

• Indefinite Shelf Life: Protective lacquer ensures the leads and element remain viable for long-term storage.