Choosing a Flyback Diode: Selection Process

1N4007 diode rectifier in a DO-41 package When you abruptly cut power to an inductive load like a motor, solenoid, or relay coil, physics throws a tantrum. The collapsing magnetic field fights to keep current flowing, generating a massive voltage spike that can instantly fry your control circuitry. This is where the flyback diode (also […]