Description Description- Solenoids are basically electromagnets: they are made of a 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).Are there any push type solenoids with a captive armature?
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. We also have a slightly bigger small push-pull solenoid and a huge large push-pull solenoid in the store!How much power do I need to drive a solenoid?
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 1 Amp, so be careful of trying to power/activate from a computer's USB. If playback doesn't begin shortly, try restarting your device.How does a slug solenoid work?
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 very small, with a 20mm long body and a 'captive' armature with a return spring.