470 Ohm 0.25W Carbon Film Resistor - 5% Tolerance (Pack of 5)

Product Description The 470 Ohm 1/4 Watt Resistor is a fundamental passive component essential for current limiting and signal conditioning in electronic circuits. These carbon film resistors feature a 5% tolerance, ensuring consistent performance for general-purpose applications. With a standard 0.25W power rating, they are ideal for protecting LEDs in 9V-12V systems, acting as pull-up/down resistors, and managing voltage levels in both hobbyist and professional projects.

Key Features

• Optimized for 9V/12V Circuits: Frequently used to limit current for LEDs or as a bias resistor in transistor circuits.

• Axial Through-Hole Design: Long, flexible leads ensure easy installation on breadboards or permanent PCBs.

• Quick Identification: Features the standard 4-band color code (Yellow, Violet, Brown, Gold) for rapid manual sorting.

• Stable Carbon Film Construction: Offers high reliability with low electrical noise for clean signal transmission.

• Protective Coating: Finished with a flame-retardant lacquer to provide environmental protection and prevent combustion during overloads.

Technical Details

• Maximum Working Voltage: Rated for stable operation up to 250V AC/DC in standard circuit environments.

• Overload Surge Capacity: Can withstand temporary peak voltages up to 500V for short durations.

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

• Operating Temperature: Maintains accurate resistance values within a range of -55°C to +155°C.

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

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

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

• Miniature Body Size: Compact axial dimensions (approx. 2.3mm x 6.5mm) for high-density component layouts.

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

• High Frequency Response: Low parasitic inductance makes it suitable for high-speed logic and basic RF filtering.

• Precision Grade: Class J (±5%) provides a cost-effective balance for most hobbyist and commercial projects.

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