https://snootlab.com/lang-en/parts/544-solenoid-5v-small-en.html

https://www.sparkfun.com/products/11015


Solenoids are a great way to induce linear motion for pushing, pulling or controlling switches and levers. This smaller solenoid is designed to work directly with 5V which makes it a great match for embedded projects. It has a throw of about 4.5mm and 2 M2 mounting holes on the body.

The wire lead is about 2" long and is terminated with a 2-pin JST PH connector.

Note: The mounting holes on this solenoid are actually 1.6mm in diameter. This will allow you to tap for an M2 screw. Also, although the datasheet lists a throw of 6mm, the actual throw appears to be closer to 4.5mm.

Warning

This solenoid is rated only for intermittent duty. It may overheat and fail, if left on for longer than a few seconds. The data sheet suggests a 25% duty cycle with a max on-time of 1 sec followed by 3 seconds off. Even running the example code (20% duty cycle), it gets a bit hot after several minutes. Only a larger and more expensive continuous duty rated solenoid can be left on, but most are rated for intermittent duty only.

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Sparkfun has a small solenoid that uses 5VDC at 1.1A max

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I used these for my Robotic Glockenspiel project, as the hammers that hit the chimes. They seemed to need 9V (rather than 5V) to operate well, but I’m careful to keep the power dissipation below the rating in the specifications. I removed the snap ring and spring to reduce the noise of operation - letting gravity bring the slug back down after hitting the chime.

I like these solenoids because I can run them from the Arduino 9V Vin (with a 1000uF cap to avoid drawing the power supply down). I use a TIP 120 transistor to control the power to the solenoid.

A few wishes to make it even better for me: tap the holes rather than leaving them untapped, and don’t go to the trouble of adding a connector to the solenoid wires.

These have turned out to be nice, inexpensive hobby solenoids I can easily play with. I like them a lot.


Note - It is a push type…NOT a pull . You can see it working here - https://youtu.be/yhX_9fFmt0Y