Sparkfun support will be closed from 3:00PM to 4:15PM on April 27th for a company-wide townhall meeting. We will resume regular hours on the 28th.

Creative Commons images are CC BY-NC-SA 3.0

Description: This is a perfect choice if you are in need of a heavy duty push button! These metal push buttons are a very tough, small, panel-mount momentary switch with an illuminated blue LED ring. It is a SPDT with 16mm threading and 1mm pitch. This button is perfect for basic On/Off functions. Overall length (including leads) is 1.5" and has small solder lugs for connection. These momentary buttons are rated up to 3A and 250VAC while the LED is rated for 5-12V.

Note: The images for this button show an LED voltage rating of 5V. We have verified that the voltage range for the the LED to be 5-12V. We are currently communicating with our supplier for new documentation. Trust the branding on the button to verify your voltage requirement.


  • Stainless Steel Body
  • IP65 Weatherproof Rating
  • Tamper Resistant
  • Momentary Operation Type
  • Blue LED Ring


Recommended Products

Customer Comments

  • Just to Clarify for beginners and others on Sparkfun:

    C1 - Is the common. NO1 - Normally Open. NC1 - Normally Closed. Right & Left unlabeled pins - LED with (RESISTER ALREADY INSTALLED). So when the button is not pressed: C1 is connected to NC1. When the button is pressed: C1 is connected to NO1. The LED pins can be controlled separately by a microcontroller.

  • Does this switch include any female quick disconnects (solderless terminals)? If not, is there a recommended size to get them elsewhere?

  • I feel a need to drop everything and find something to design just for this button. These look awesome.

  • Could anyone tell me - is this button a “snap action” type? That is, does it have a “microswitch” type of action that makes a mechanical and tactile “click” when depressed or released, or does it just use ordinary contacts?

    • They have a very nice click sound that sounds similar to a micro switch.

      They look great when installed in your panel and the LED ring is very nice and uniform lit.

  • Do these switches have a nice tactile click feeling to them?

  • “The three pins for the switch should be labeled on the body itself as C1, NO1, and NC1. The other two pins will correspond to your LED connectors.”

    Thanks, can you explain this for a beginner? What is C1, NO1 and NC1? How many volts for the LED?

    • I don’t actually have one of these, but it sounds like C1 is connected to NO1 when the button is pressed, and C1 to NC1 when the button isn’t pressed. (NC = normally closed, NO = normally open, C = common?)

      As for the LED, the datasheet says 5V but it is unclear if there is a resistor inside already. Based on the picture with all the lights lit up, it looks like you can connect 5V straight to the pins, but you could add a 200-300 ohm resistor in series if you want to be safe. If the LED doesn’t come on, you can switch the pin polarity since it could be backwards.

      • Just did some testing - I threw a 4.7k resistor inline and dumped 5V across and metered - the LED drops 2.67V at 11.57mA, so that puts resistance at 230 ohms! This thing definitely has a resistor in it already.

        • Thanks for checking! I have since gotten the white latching version of this button but haven’t pulled it out to test it myself.

  • Maybe a dumb question…. Do you not need to have a resistor for the LED?

    • Nope, resistor appears to be included. See my other comment for numbers.

  • Very nice

  • Pretty.

  • I don’t see a pinout in the ‘datasheet’. Where is the best place to get that data?

    • The three pins for the switch should be labeled on the body itself as C1, NO1, and NC1. The other two pins will correspond to your LED connectors.

  • Beautiful!

Customer Reviews

5 out of 5

Based on 1 ratings:

Currently viewing all customer reviews.

1 of 1 found this helpful:

Greatest button on the market!

This small button packs in a VERY BRIGHT indicator led, which can be controlled separately from a microcontroller. VERY HELPFUL with custom builds. They feature a built-in resistor for the led, and it has a great mechanical build quality, and its click is very professional and industrial feeling.

I recommend you buy this product!