100 Ohm Resistor (1/4 Watt, 5% Tolerance)
₵0.50
The 100 Ohm resistor is a crucial component in electronics, primarily used to limit electrical current. It is often used with LEDs to prevent burning them out when connected directly to a 5V or 3.3V pin on an Arduino or ESP32. By adding a 100 Ohm resistor in series, you can safely reduce the current, allowing the LED to light up brightly without damage.
970 in stock
Key Features
- Resistance: 100 Ohms ($\Omega$)
- Primary Use: Current limiting for standard LEDs (like red, yellow, or green) connected to 3.3V or 5V logic.
- Power Rating: 1/4 Watt (0.25W), which is perfect for most low-power microcontroller projects.
- Tolerance: $\pm$5%. This means the actual resistance will be within 5% of 100 Ohms (between 95 and 105 Ohms).
Color Code
Resistors use colored bands to indicate their value. For a 100-Ohm, 5% resistor, you will see four bands:
- Brown (1)
- Black (0)
- Brown (x10)
- Gold ($\pm$5%)
Reading: (1) (0) x 10 = 100 Ohms.
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