I have a very simple circuit which switches on an LED when a magnet passes a reed switch. In order to extend the life of the reed switch I kept the switched current to a minimum, about 1mA, by using a transistor to switch the 30mA for the dual color LED.
The manufacturers for the reed switch and for the LED gave me the expected MTTF for their components, but I am at a loss to find the life expectancy for the two resistors and the transistor.
Hopefully someone here has an idea how to find this info.
The manufacturers for the reed switch and for the LED gave me the expected MTTF for their components, but I am at a loss to find the life expectancy for the two resistors and the transistor.
Hopefully someone here has an idea how to find this info.