The main parameters of the diode are:

The main parameters of the diode are:

1: The maximum forward average current that a diode is allowed to pass through during long-term use is called the maximum rectified current, or the rated working current of the diode. When the current flowing through the diode is greater than the maximum rectification current, it is easy to be burned out. The maximum rectification current of the diode is related to the PN junction area and heat dissipation conditions. The surface contact diode with a large PN junction area has a larger Ifm, while the point contact diode has a smaller Ifm. Metal encapsulated diodes have a larger if, while plastic encapsulated diodes have a smaller if.

2: The maximum reverse current refers to the reverse current that flows when the highest reverse operating voltage is applied to both ends of the diode. The smaller the value, the better the unidirectional conductivity of the diode.

3: The maximum reverse working voltage refers to the maximum reverse voltage that a diode can withstand at both ends during normal operation. The maximum reverse operating voltage is half of the reverse breakdown voltage. In high-voltage circuits, it is necessary to use a diode with a larger Ur, otherwise the diode is prone to breakdown and damage.

4: The highest operating frequency refers to the highest frequency of a diode under normal operating conditions. If the signal frequency added to the diode is higher than this frequency, the diode will not function.