220 ohms resistor
The 220 ohms resistor is a ±1% metal film resistor rated at 0.25W, commonly used for LED current limiting with 5V circuits. Metal film resistors offer excellent stability and low noise compared to carbon film alternatives.
Key Features
- 220Ω resistance value
- 0.25W power rating
- ±1% tolerance
- Metal film construction for stability
- Axial lead through-hole package
- Low noise and temperature coefficient
- Color-coded bands for value identification
Technical Specifications
| Parameter |
Specification |
| Resistance |
220Ω |
| Power Rating |
0.25W |
| Tolerance |
±1% |
| Type |
Metal film |
| Package |
Axial through-hole |
| Dimensions |
2mm x 6mm (body) |
| Lead Spacing |
7.5mm |
Applications
- LED current limiting
- Pull-up/pull-down resistors
- Voltage divider circuits
- Biasing transistors
- Filter circuits
- General electronics
Important Notes
- Verify power dissipation: P = V²/R or I²R
- Do not exceed power rating – will overheat
- Metal film preferred over carbon for precision circuits
- Color code: memorize or use resistor color code calculator
- Store organized by value for easy access
