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Description: This is a momentary on-off-on toggle switch, meaning that when you pull the switch from the off position to one of the two on positions, it will only stay there as long as you hold it and then spring back. Momentary toggles are often used for winch controls, engine starters and other applications when you don't want the switch to be unintentionally left on, but you can also use it as an input switch for your microcontroller project.

Comments 19 comments

  • Are these compatible with https://www.sparkfun.com/products/11059

    Thanks

    • I bought COM-09278, which seems to be the same missile switch cover, only red, and the momentary on-off-on switch pictured above (COM-10545). The concept is that the momentary-on with the guard down will activate a “SAFE” indicator (steady green LED) and then when the guard is lifted, an “ARMED” indicator is activated (flashing red LED). As a preliminary fit check, they fit dimensionally just fine from what I can tell. The ONLY problem, it seems the missile switch cover spring doesn’t have enough cajones to close the switch in the guarded position, IF you close it slowly. If you flick the guard to the closed position rather than lowering it slowly (Hey, when you have missiles at the ready, who’s going to be gentle with this thing?!) then the inertia of the spring-forced cover has enough to close the switch. The cover will still be effective, IMHO, and for what I’m using it for, if it doesn’t activate my “SAFE” indicator, I’ll just push it the rest of the way closed, and it does hold. The position which does matter for my use is with the guard lifted, so it does it’s job for me.

      HOWEVER - IF you ARE relying on the guard to close the switch, it MAY not do the job sometimes. If you have to force it to close the switch, it will probably stay closed, but my over-engineering mind would not rely on it. I’d just recommend to SparkFun to get stiffer springs in their missile switch covers. Don’t know what the cost would be, but I’d certainly be willing to spend the extra couple pennies for it :)

  • Can these be effectively combined with a switch cover like COM-09278, or does the cover basically force the switch into one of its “on” positions?

  • Heheh, I liked it better when it said “wench controls.”

  • thx

  • Is this switch compatible with https://www.sparkfun.com/products/11146 bat handle condom, to make it water proof?

  • The thread size of this momentary toggle switch is => M12x0.75mm.

  • Just wondering…can I use these toggles as trigger switches for the robertsonic mp3 trigger? http://www.sparkfun.com/products/11029

    • You could definitely use these as the triggers for the MP3 Trigger board. You would simply need as many switches as tracks that you intend to trigger.

  • The description is unclear as to whether this is
    SPDT or a two position SPST. That last one sounds
    useless, but hey, I’m no EE.

    • Given the pics (and how it’s described) I’d imagine it’s a SPDT. There’d have to be a 4th pole for it to be two SPST switches, in which case it’d be a DPDT. :-)

  • hi, can this be used as a 2-way joystick?

  • Is it a “make then break” switch? They usually are, to avoid popping sounds when changing pick-ups.

  • How do these compare in size to your standard toggle switches ( http://www.sparkfun.com/products/9276 )? Not really concerned about the housing, but rather the toggle length and thread size
    Thanks

  • Gee, if this came in a DPDT configuration, you could use it to reverse the polarity of an applied DC voltage. That would be handy …

  • datasheet attached to side of switch?


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