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Small push-pull solenoid

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Solenoids are basically electromagnets: they are made of a big coil of copper wire with an armature (a slug of metal) in the middle. When the coil is energized, the slug is pulled into the center of the coil. This makes the solenoid able to pull (from one end) or push (from the other)

This solenoid in particular is fairly small, with a 30mm long body and a 'captive' armature with a return spring. This means that when activated with up to 24VDC, the solenoid moves and then the voltage is removed it springs back to the original position, which is quite handy. Many lower cost solenoids are only push type or only pull type and may not have a captive armature (it'll fall out!) or don't have a return spring. This one even has nice mounting tabs, its a great all-purpose solenoid.

To drive a solenoid you will a power transistor and a diode, check this diagram for how to wire it to an Arduino or other microcontroller. Another great way to drive these is with an Adafruit Motor Controller for Arduino or Raspberry Pi, they have the necessary circuitry to protect your device.  You will need a fairly good power supply to drive a solenoid, as a lot of current will rush into the solenoid to charge up the electro-magnet, about 100mA, so don't try to power it with a 9V battery!

  • 24 DC operation (you can use 9-24 DC volts, but lower voltage results in weaker/slower operation)
  • Push or pull type with 5.5 mm throw
  • DC coil resistance: 100 ohms
  • 5 Newton starting force (24VDC)
  • 1.4 oz / 39 grams

Collections: Adafruit Products, Arduino, New Products

Category: Arduino



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