Mini Pushbutton Switch - SMD

Miniature surface mount momentary button. These are great, low-profile momentary switches. Perfect as a tactile reset switch. Rated up to 50mA.


Mini Pushbutton Switch - SMD Product Help and Resources

Button and Switch Basics

May 7, 2013

A tutorial on electronics' most overlooked and underappreciated component: the switch! Here we explain the difference between momentary and maintained switches and what all those acronyms (NO, NC, SPDT, SPST, ...) stand for.

Core Skill: Soldering

This skill defines how difficult the soldering is on a particular product. It might be a couple simple solder joints, or require special reflow tools.

3 Soldering

Skill Level: Competent - You will encounter surface mount components and basic SMD soldering techniques are required.
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Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

1 Electrical Prototyping

Skill Level: Noob - You don't need to reference a datasheet, but you will need to know basic power requirements.
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Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • SpikedCola / about 14 years ago / 3

    Incase anyone needs it, Ive found a different manufacturer (stocked at DigiKey and Mouser) who makes this identical button.

    • Thank you, these are hard to find in quantity.

      • UNTEngineer / about 11 years ago / 1

        Thanks for the link. FYI, they are still available; P/N: 611-PTS525SM10-LFS for Mouser and CKN9104CT-ND for Digikey.

    • stevenvh17 / about 9 years ago * / 1

      Also similar to Alps SKQG (stocked at Mouser, not Digikey). The SKQG performs excellently. Spec'd for 100 000 operations, but I tested them for 200 000 and they still did well with 30ms software debouncing. Unfortunately I forgot to measure the actual bounce times after the 200 000 switches at the time. Be sure to place a small cap in parallel with the switch to keep the contacts clean.

  • ArduinoPerson1243 / about 9 years ago / 1

    Aren't thes the ones Sparkfun uses on the RedBoard?

  • RogerParkinson / about 11 years ago / 1

    Is there an Eagle library entry for this one? I looked in the latest library but I could not match this to anything I found. Thanks

    • RogerParkinson / about 11 years ago / 3

      Okay, looks to be TACTILE_SWITCH_SMD/TAC_SWITCHSMD That's based on the comment below that sad this is the same button as on the Arduino Pro Mini

  • MOSFred / about 12 years ago / 1

    Does this switch have two separate lines that are connected by the switch? In other words, if I use this switch to control whether or not two components are grounded, are the two components isolated when the switch isn't pressed? Thanks!

  • bendhoward / about 13 years ago / 1

    Would be nice if the description mentioned the exact name of the part in the Eagle library. I can't figure out a way to match them other than by looking at the part footprint to make sure it's the same. Any better suggestions?

  • Microman / about 13 years ago / 1

    would these work well for building a micro-keyboard?

    • SomeGuy123 / about 13 years ago * / 1

      They're a bit difficult to press. I don't think they're very durable either.

  • tim_world / about 13 years ago / 1

    This part is present on Ebay with the keyword:
    "SMD Tactile Push Touch Switch Key Button"
    It's for big quantity ! ;)

  • These look just like the ones on the Arduino Pro/Pro Mini!

  • Nimphious / about 14 years ago / 1

    Does the supplier that you get your knobs and stuff from supply D-pads? If so I think it would be great to make a D-pad break out board with this SMD switch.
    Just a thought.

  • Simsumdum / about 14 years ago / 1

    I used these buttons for my project for user input, unfortunately I have found a 75% failure rate with these. How frustrating!!

    • AHiggins / about 13 years ago / 2

      Excessive soldering heat?

    • That's interesting, we build those onto hundreds, and hundreds of boards, they are generally great little buttons. As Mike said, you may contact Technical Support for more assistance.

      • Simsumdum / about 14 years ago / 1

        Thanks guys, I'll contact tech support and see what they say!

Customer Reviews

5 out of 5

Based on 4 ratings:

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Favorite button

These are my go-to button for many projects. They are high quality, have an excellent click with a great feedback feel. They are small and sturdy.

Highly useful SMD switch for any small application

This is a great multipurpose switch. It's easy to solder onto a PCB, and the size is perfect for small applications. I suggest downloading the SparkFun parts library to put this switch into your CAD sketch.

Clicky SMD pushbutton

I bought a strip of these to replace the buttons in an old Compu Star autostart remote, and they fit perfectly. Nice tactile feel, but I KINDA doubt they'll actually last the "100,000 cycles min" the datasheet claims! Of course you can buy 50 of these for a buck or two straight from China, but that doesn't mean this isn't a fine product to throw on your SFE order.