Another classic part for today, the venerable 1N4001 blocking diode. These guys can take up to 1 Amp with a drop of about a volt. We like to use them to protect 7805’s from AC/negative input voltages coming in from a power jack (as a half wave rectifier) or inductive load shunts (for motors, solenoids and relays). They’re not good for signal work, or for boost converters so much as they’re sluggish and leaky. They’re kind of the ‘big galoot’ of diodes: tough, dirt cheap and very handy, so pick some up today using our part finder!
All this and more, in the part finder!
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Sorry, the comment form is closed at this time.