A 220-ohm resistor is a passive electronic component with a resistance value of 220 ohms (Ω) used to limit electrical current and protect sensitive parts like LEDs.
Key Specifications
- Resistance Value: 220 Ω
- Common Power Rating: 1/4 Watt (0.25 W)
- Common Tolerance: ±5% (gold band) or ±1% (brown band)
- Type: Axial through-hole (carbon film or metal film)
Color Codes
- 4-Band (5% Tolerance): Red – Red – Brown – Gold
- 5-Band (1% Tolerance): Red – Red – Black – Black – Brown
Common Uses
- LED Protection: Limits current to safe levels (10–15 mA) when powering an LED from a 3.3V or 5V source.
- Input Protection: Acts as a series resistor to protect microcontroller pins from voltage spikes.
220 ohm Resistor
- Product Code: 220 ohm Resistor
- Availability: In Stock
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R 6.67
- Ex Tax: R 5.80
Tags: 220 ohm Resistor, 220 ohm, resistor