Adafruit
1N4001 Diode - 10 pack
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A 10-pack of 1N4001 general-purpose rectifier diodes — one of the most widely used power diodes in electronics. Rated for 1 A continuous forward current and ...
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A 10-pack of 1N4001 general-purpose rectifier diodes — one of the most widely used power diodes in electronics. Rated for 1 A continuous forward current and 50 V peak reverse voltage with a typical forward voltage drop of 0.7 V.
Key Features
- 1 A Forward Current – Suitable for most low-power rectification and protection circuits
- 50 V Peak Reverse Voltage – Blocks reverse voltage up to 50 V
- ~0.7 V Forward Drop – Standard silicon diode characteristics
- Through-Hole Package – Easy to use on breadboards and PCBs
Common Applications
- Reverse Polarity Protection – Place between DC power input and circuitry to prevent damage from reversed connections
- Flyback/Kickback Protection – Connect across relay coils, solenoids, or DC motors to safely discharge inductive voltage spikes
- General Rectification – AC-to-DC conversion in power supply circuits
Specifications
- Part Number: 1N4001
- Max Forward Current: 1 A (average)
- Peak Reverse Voltage: 50 V
- Forward Voltage Drop: ~0.7 V (typical)
- Package: DO-41 (axial)
Package Contents
- 10× 1N4001 rectifier diodes
Jargon buster
Plain-language definitions for the technical terms used above.
- Axial
- Axial components have one lead coming out of each end, so they lie flat or span holes on a circuit board or breadboard. This matters when checking whether the resistor will physically fit your prototyping or through-board assembly method.
- Forward voltage drop
- Forward voltage drop is the small amount of voltage lost across a diode or diode-like circuit when current flows through it. A lower drop is important because it wastes less power and helps keep the rest of the project supplied with enough voltage.
- reverse polarity protection
- A circuit feature that helps protect the board if power is connected the wrong way around. It matters because it can reduce the chance of damaging the breakout during wiring mistakes, especially in classroom or prototyping use.
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