1/2w220R Resistor (4-Band) (Metal oxide film) Code: 60232941

A 1/2W 220-ohm metal oxide film resistor is a highly stable, flameproof electronic component. It limits electrical current and is ideal for circuits that experience high temperatures. It is commonly used in power supplies, LED drivers, and breadboard projects.

Key Specifications

• Resistance Value:220 Ω (220 ohms)
• Power Rating:5W
• Tolerance:Usually ± 5% (common) or ± 1% (precision)
• Maximum Working Voltage:Typically 350V
• Operating Temperature Range:-55°C to +155°C
• Construction:Metal oxide deposited on a ceramic core, coated with a flame-retardant layer.

Color Code

You can identify a 220-ohm resistor by its color bands. The reading direction goes from left to right (leaving the tolerance band—usually gold or brown—on the right):

• 1st Band (First Digit):Red (2)
• 2nd Band (Second Digit):Red (2)
• 3rd Band (Multiplier):Brown (× 10¹ or 1 zero)
• 4th Band (Tolerance):Gold (± 5%) or Brown (± 1%)

Common Uses

Because metal oxide resistors handle higher temperatures and produce lower electrical noise, they are favored over carbon film resistors in safety-critical circuits, surge protection, and high-frequency applications.