First page Back Continue Last page Overview Graphics
The brightness of an LED is related to the amount of current passing through it (or the number of electrons passing though it). A device called a resistor is generally placed in series with the LED to limit the amount of current. When 5V is used to light the LED, resistor values from 200 ohms to 470 ohms are commonly used (the LED is brighter with 200 ohms than with 470 ohms). Using no resistor will result in too much current and will often destroy the LED. The resistor is often referred to as a current-limiting resistor
The brightness of an LED is related to the amount of current passing through it (or the number of electrons passing though it). A device called a resistor is generally placed in series with the LED to limit the amount of current. When 5V is used to light the LED, resistor values from 200 ohms to 470 ohms are commonly used (the LED is brighter with 200 ohms than with 470 ohms). Using no resistor will result in too much current and will often destroy the LED. The resistor is often referred to as a current-limiting resistor