Push button LEDs are a type of component that connects two different points in a circuit. When pressed these switch on an LED.
Structure of push button LEDs
Push button LEDs have a structure made up of four legs; two on one side and two on the other. The two legs on either side connect internally when the push button is pressed, allowing electricity to flow through the circuit.
How do push button LEDs work?
A single leg of the push button is connected via a 5v supply and the other one is connected with an LED via a resistor. When in neutral (i.e. not pushed) the push button does not allow the current to flow through it, but when it is pressed it completes the circuit and the LED will start to glow. The current will flow all the while when the push button is pressed. As soon as it is released, the LED will be turned off as the push-button breaks the circuit and stops the supply of electricity.
KB Series Miniature Pushbuttons, LB Series Standard Size Panel Seal Pushbuttons, LB Series Standard Size Snap-in Pushbuttons, YB Series Short Body Pushbuttons, YB2 Series Panel Seal Pushbuttons
KB Series Miniature Pushbuttons, LB Series Standard Size Panel Seal Pushbuttons, LB Series Standard Size Snap-in Pushbuttons, YB Series Short Body Pushbuttons, YB2 Series Panel Seal Pushbuttons
Description:
Green and red 22mm diameter, spring return double
insulated bezel push buttons Stop button fitted with 1 N/C contact block, start button fitted with 1 N/O contactI/O with red LED pilot light available ’STOP’ ’START’; version has marking on legend ...
Description:
Forming part of Schneider Electrics Harmony XALD Series,
this complete control station is the ideal solution for installations within the chemical, marine, energy and automotive industry. Although they are found within a multitude of applications, a simple example is within ...
Description:
Note: When not illuminated, the green LED appears
to be yellow. 8mm contact indicators for panel mountingLED illumination, Suitable LEDs are supplied separatelyIndicators are available in both square and round stylesSolder Tab terminals.
