Difference between power diode and simple diode?

Major Differences

1- Design

Simple diodes consist of a simple PN junction. They are smaller in size and lighter in weight, while power diodes are in modified form and they are larger and heavier normally. Power diodes are usually available in metal form.

2- Voltage Rating

Simple diodes are used in normal low power components so they have a relatively low voltage ratings as compared to power diodes. Power diodes can have very high voltage ratings usually in thousands of volts.

3- Current Rating

Power diodes have a high hand in Current ratings over normal diodes , that can be in several hundred amperes.

4-Temperature

Major probelm in handling high power applications is the generation of heat and temperature. Power diodes have the accessiblity of operation at higher temperature whereas normal diodes do not need this feature in high priority.

5- Cost

Power Diodes are costly as compared to the simple diodes due to the additional components and features.