Episode Details

For our solenoid driver, we have individual transistors for driving each output, which means that we need to protect them with flyback diodes. The important things we need for a flyback diode are to handle the maximum reverse voltage (30V or so) and be fast—there is a peak current of an amp or so, but it's near-instantaneous, so we're not as worried about continuous current. We'll also need 8, so let's make sure they're not too expensive! See the chosen part on DigiKey https://www.digikey.com/short/prdhzvw1 ----------------------------------------- Visit the Adafruit shop online - http://www.adafruit.com LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/