4.7k Ohm 0.5W Carbon Film Resistor - 5% Tolerance (Pack of 5)

Product Descriptio

The 4.7k Ohm 1/2 Watt Resistor is a heavy-duty passive component essential for signal conditioning and digital logic stabilization in environments requiring high thermal endurance. With an upgraded 0.5W power rating, this resistor provides double the heat dissipation capacity of standard variants, ensuring stability in continuous-duty voltage dividers and pull-up networks. Featuring a 5% tolerance and rugged carbon film construction, it ensures reliable logic transitions and precise analog references for both professional PCB assembly and robust educational prototyping.

Key Features

• Double Power Capacity: The 1/2 Watt rating ensures the resistor stays cool even in high-duty biasing applications, significantly reducing thermal resistance drift.

• Microcontroller Essential: The standard "strong" pull-up value for I2C communication lines and reset pins for high-reliability Arduino/ESP32 projects.

• Sturdy Axial Leads: Features thicker, tin-plated copper-clad steel leads designed for a secure mechanical fit in solderless breadboards.

• 4-Band Color Identification: Marked with Yellow, Violet, Red, Gold bands for instant manual sorting and value verification.

• Flame-Retardant Coating: Built with a protective lacquer layer to enhance safety and provide environmental protection against oxidation.

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 failure.

• Operating Temperature Range: Maintains rated accuracy across a broad range of -55°C to +155°C.

• Temperature Coefficient: Typically rated at ±450 ppm/°C, providing superior thermal stability during continuous operation.

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

• Lead Quality: Solder-plated leads provide maximum conductivity and excellent solder wetting for wave or manual soldering.

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

• Enhanced Heat Dissipation: Optimized body size facilitates superior air convection, preventing heat buildup in high-density layouts.

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

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

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

• High Frequency Performance: Clean resistive characteristics make it suitable for high-speed digital logic isolation and RC timing.

• Voltage Stability: Maintains a consistent resistance value even under fluctuating voltage levels or minor surges.

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

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