Date：2025-07-28 Categories：Product knowledge Hits：186 From：Guangdong Youfeng Microelectronics Co., Ltd
forward current flows from the anode to the cathode, while reverse current does not conduct. Ensure that the rectifier diode is correctly connected to the circuit to ensure proper operation.
4. How to determine the polarity of rectifier diodes?
A rectifier diode is a polarized component that must be connected correctly in order to function properly. Usually, the anode of a rectifier diode is marked with a+symbol or a red mark, and the cathode is marked with a - symbol or a black mark. Ensure that the anode is connected to the positive pole in the circuit and the cathode is connected to the negative pole in the circuit.
5. How to determine the maximum forward voltage and maximum forward current of a rectifier diode?
The maximum forward voltage and maximum forward current of rectifier diodes are usually specified in their specifications or data sheets. Ensure that the maximum forward voltage and maximum forward current of the selected replacement diode are higher than those of the original diode.
6. How to determine if the rectifier diode is damaged?
When the rectifier diode is damaged, the following situations may occur:
No conductivity: If the current does not flow through the diode during forward voltage testing or diode testing, it may be damaged.
Reverse conduction: Through reverse voltage testing or diode testing, if current flows through the diode, it may be damaged.
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