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

Product Description The 2.2k Ohm 1/2 Watt Resistor is a high-reliability passive component engineered for superior thermal management in signal biasing and current limiting applications. With an upgraded 0.5W power rating, this resistor provides double the heat dissipation capacity of standard 1/4W versions, ensuring stability in continuous-duty circuits. Featuring a 5% tolerance and durable carbon film construction, it is the ideal choice for pull-up/pull-down networks, RC timing circuits, and transistor biasing where extra power headroom is required.

Key Features

• Superior Thermal Headroom: The 1/2 Watt rating allows for cooler operation in biasing stages and voltage dividers compared to standard resistors.

• Precision Signal Biasing: Ideal for setting the operating point of transistors and op-amps with minimal thermal drift.

• Robust Axial Leads: Features thicker, tin-plated copper-clad steel leads for secure breadboard fitment and high mechanical strength.

• Standard Color Coding: Marked with a clear 4-band code (Red, Red, Red, Gold) for instant manual identification.

• Flame-Retardant Protection: Finished with a specialized lacquer coating to ensure safety during minor electrical overloads and high-humidity exposure.

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 voltages up to 700V without immediate failure.

• Operating Temperature Range: Maintains rated accuracy across a broad thermal spectrum from -55°C to +155°C.

• Temperature Coefficient: Typically rated at ±450 ppm/°C, providing thermal stability during continuous high-load cycles.

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

• Lead Material: Solder-plated copper-clad steel leads for maximum conductivity and excellent solder wetting.

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

• Enhanced Heat Dissipation: Optimized body size facilitates superior air convection, preventing heat buildup in dense PCB layouts.

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

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

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

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

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

• Standard Precision: Class J (±5%) provides a cost-effective and reliable solution for general electronics.

• Solderability: Meets industrial standards for both manual soldering and high-speed wave soldering.