Common problems and solutions of rectifier diodes

What problems will rectifier diodes encounter in circuit applications? Many common problems have simple solutions.
Common problems with rectifier diodes: What should be done if a fast recovery rectifier diode is too hot?
Answer: The fast recovery rectifier diode is very hot, even if you replace it with a high-power fast recovery rectifier diode, it is still very hot. In this case, we recommend using an ultra fast recovery rectifier diode.
Common problem 2 with rectifier diodes: How to calculate the power consumption of rectifier diodes?
Answer: The calculation of power consumption for rectifier diodes does not have much meaning. It is recommended that you consult relevant standard books and pay attention to the key parameters of surge current and uniform current. At the moment of startup, the voltage at both ends of the large electrolysis is 0, and the current that can pass through the diode or bridge is extremely large. It is necessary to pay attention to whether it is within the range allowed in the standard book. Moreover, when the diode or bridge is operating normally, the uniform current that can be allowed to pass through will decrease after it heats up. This is also explained in the standard book.
Common problem three of rectifier diodes: What are the common parameters of rectifier diodes?
Answer: The commonly used parameters of rectifier diodes include: Z-uniform rectification current IF, Z-high reverse operating voltage VR, Z-high reverse current IR, breakdown voltage VR, Z-high operating frequency fm, reverse recovery time tre, and zero bias capacitance CO. It is worth noting that due to manufacturing process constraints, even diodes of the same type have significant parameter variability.