1N4007 DIODE RECTIFIER 1A/1000V
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The 1N4007 is the most common and widely used general-purpose rectifier diode in the world. It belongs to the 1N400x series of diodes and is primarily designed for converting AC (alternating current) into DC (direct current) in power applications.
🔌 1N4007 Product Detail
Core Function and Type
The 1N4007 is a silicon standard recovery rectifier diode. Its main purpose is rectification, which means it allows current to flow primarily in one direction and blocks current flow when the voltage is reversed.
Silicon: The material used for the semiconductor junction.
Standard Recovery: This indicates it is designed for power-line frequencies (like 50Hz or 60Hz) and is not suitable for high-speed or high-frequency switching circuits (unlike the 1N4148).
Rectifier: It is built to handle higher power levels than small-signal diodes, making it ideal for power supplies.
Key Specifications
Package: Typically supplied in the axial-leaded, molded plastic DO-41 package.
Maximum Repetitive Peak Reverse Voltage (V_RRM): This is the most defining characteristic of the 1N4007. It can withstand a reverse voltage of up to 1000V (or 1kV).
Maximum Average Rectified Forward Current (I_FAVM): The maximum continuous current it can handle is 1A.
Maximum Forward Voltage (V_F): The voltage drops across the diode when conducting current is typically around 1.1V at 1A.
Maximum Power Dissipation (P_D): Approximately 3W.
Common Applications
Due to its robust 1A current rating and high 1000V voltage blocking capability, the 1N4007 is indispensable for:
AC to DC Power Supplies: Used in half-wave, full-wave, and bridge rectifier circuits to convert AC mains voltage into pulsating DC.
Adapter/Charger Circuits: Found in power bricks and wall warts for consumer electronics.
Reverse Polarity Protection: Used in DC circuits to prevent damage if power is accidentally connected backward.
Freewheeling/Flyback Diode: Used across inductive loads (like relays or solenoids) to safely dissipate energy spikes when the power is turned off.