1N4001 1A 50V General-Purpose Rectifier Diode | Pro Tronix

Product Description

The 1N4001 is a industry-standard silicon rectifier diode engineered for general-purpose power conversion, circuit protection, and rectification tasks. Featuring a 1-ampere forward current rating and a 50-volt peak repetitive reverse voltage limit, it efficiently converts alternating current (AC) to direct current (DC) and blocks reverse current surges.

A fundamental electronic workshop staple, the 1N4001 is essential for power supply circuits, relay kickback suppression, polarity protection, and basic circuit design.

⚠️ Polarity & Installation Tip: Always verify the orientation of the cathode band (the silver ring marked on the diode body) in your schematic before soldering to prevent reverse-voltage short circuits or component damage.

Technical & Architectural Highlights

• High Surge Current Capability: Withstands high non-repetitive peak forward surge currents during power-up transients.

• Standard Axial Leads: Sturdy tinned copper leads allow easy insertion into perfboards, PCBs, and breadboards.

• Low Forward Voltage Drop: Minimizes power dissipation and heat generation during normal forward conduction.

• Reliable Silicon Construction: Proven DO-41 package offers dependable thermal performance and robust mechanical durability.

Technical Specifications

Applications

• AC-to-DC Power Supplies: Half-wave and full-wave rectification in low-voltage power adapters.

• Flyback / Snubber Protection: Placing across relay coils and DC motors to absorb inductive voltage spikes.

• Polarity Protection: Preventing reverse-current damage if a power source is connected backwards.

What’s in the Box

• 10 x 1N4001 Rectifier Diodes (or pack quantity as specified).

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Pinout / Terminal Configuration

The diode features two axial terminals defined by its polarity: