The body is a black plastic with the LED built inside. There are two contacts for the button and two contacts for the LED, one marked + and one -. The forward voltage of the LED is about 2.2V so connect a 220 to 1000 ohm resistor in series just as you would with any other LED to your 3V or higher power supply.
This particular button has a yellow body and LED and is latching on/off. The two switch contacts are either connected or disconnected. When you push the button they will switch from one to the other, like an on-off switch. The LED is separated from the button, so you can make it light up when on, light up when off, always lit, etc.
- Max Dimensions: 18.06mm / 0.7″ x 18mm / 0.7″ x 29.4mm / 1.15″
- Shaft Dimensions: 14.89mm / 0.58″ x 15.56mm / 0.6″ x 18.7mm / 0.73″
- Button Height: 5mm / 0.2″
- Button Height Depressed: 3.5mm / 0.15″
- Weight: 4.6g