General Rectifier Diode Use Instruction

1. Function and Principle

A general rectifier diode is a two-terminal semiconductor device that allows current to flow in one direction (forward direction) while blocking it in the opposite direction (reverse direction). Its core function is to convert alternating current (AC) into direct current (DC), which is widely used in rectification circuits of power supplies, chargers, and various electronic devices.

2. Key Parameters

• Forward Voltage Drop (VF): The      voltage across the diode when it is conducting in the forward direction.      It typically ranges from 0.6V to 1.2V for silicon diodes, and lower for      germanium diodes. Exceeding the specified VF may cause excessive power      dissipation and potential damage. rectifier diode

• Reverse Breakdown Voltage (VR): The      minimum reverse voltage at which the diode starts to conduct significantly      in the reverse direction, which can lead to permanent damage if exceeded.      Ensure the applied reverse voltage in the circuit is well below the rated      VR of the diode.

• Maximum Forward Current (IF): The      maximum continuous forward current the diode can safely handle without      overheating. It is crucial to design the circuit such that the actual      forward current does not exceed this value. Derating may be required for      high-temperature operations. rectifier diode

• Power Dissipation (PD): The maximum      power the diode can dissipate, which is determined by the product of      forward voltage drop and forward current. Adequate heat dissipation      measures should be taken if the power dissipation is close to the rated     value.
  
  

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