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

Product Description The 330 Ohm 1/4 Watt Resistor is a classic "workhorse" component in electronics, most commonly used as a current limiter for LEDs in 9V or 12V circuits. These resistors feature a 5% tolerance, ensuring reliable performance for general-purpose prototyping. With a standard 0.25W power rating, they provide a stable resistive barrier, protecting sensitive components like microcontrollers and LEDs from excessive current.

Key Features

• LED Protection Expert: Perfect for driving standard 5mm LEDs from a 9V battery or a 12V power supply while keeping current at a safe ~20-25mA.

• Axial Lead Format: Flexible, tin-plated leads are designed for easy insertion into solderless breadboards and permanent soldering.

• Clear Color Identification: Features the 4-band color code (Orange, Orange, Brown, Gold) for instant manual sorting and verification.

• Stable Carbon Film Tech: Provides consistent electrical performance with low electrical noise and high reliability.

• Protective Lacquer Coating: Finished with a flame-retardant layer to enhance safety and prevent oxidation in humid environments.

Technical Details

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

• Overload Surge Voltage: Capable of withstanding short-duration peak surges up to 500V without failure.

• Operating Temperature: Functions accurately within a wide thermal range of -55°C to +155°C.

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

• 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 reliable mechanical strength.

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

• Compact Body Size: Miniature axial dimensions (approx. 2.3mm diameter) allow for high-density PCB 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 element in humid conditions.

• Versatile Logic Use: Ideal for use as a pull-up or pull-down resistor in higher voltage (12V) logic systems.