Do I need a diode for my 12V electromagnet solenoid, if using a transformer that converts 110V to 12V? - Quora
Using Flyback Diodes in Relays Prevents Electrical Noise in Your Circuits | PCB Design Blog | Altium
Using Flyback Diodes in Relays Prevents Electrical Noise in Your Circuits | PCB Design Blog | Altium
Why do inductors require flyback diodes and capacitors don't? Aren't they both energy storing components? - Quora
![Solenoid Valve Connectors, Receptacle, 3 Pole, Form A 18mm, with 4 Pole M12 Male Straight, 50V, 4A, LED w/Flyback Diode, with ground opposite Solenoid Valve Connectors, Receptacle, 3 Pole, Form A 18mm, with 4 Pole M12 Male Straight, 50V, 4A, LED w/Flyback Diode, with ground opposite](https://www.mencom.com/pub/media/catalog/product/cache/b35a85b3bb79f8afda94e36e776f2a7b/v/a/vac-029-mdc.jpg)
Solenoid Valve Connectors, Receptacle, 3 Pole, Form A 18mm, with 4 Pole M12 Male Straight, 50V, 4A, LED w/Flyback Diode, with ground opposite
![Choosing the right (flyback) diode to stop contacts (points) arcing (sparking) on solenoid (relay) - Electrical Engineering Stack Exchange Choosing the right (flyback) diode to stop contacts (points) arcing (sparking) on solenoid (relay) - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/wqIJn.png)