芯联微电子

CN
Home  >  News  >  Company news

Matters needing attention in the selection of TVS Diode

Precautions for TVS diode selection

1. It is necessary to clearly confirm the maximum DC value, rated standard voltage value, and "high-end" tolerance value of the protected circuit;

2. The maximum clamping voltage of the TVS transistor should be less than the damage voltage of the protected circuit;

3. The rated reverse turn off voltage of the TVS tube should be greater than or equal to the maximum working voltage of the protected circuit;

4. After determining the maximum clamping voltage of the TVS tube, its peak pulse current should be greater than the transient surge current;

5. The maximum peak pulse power of the TVS tube must be greater than the peak pulse power of the protected circuit;

6. Consider the impact of temperature changes on the characteristics of TVS tubes, which operate between -55 ° C and 150 ° C;

7. Most DC protection circuits choose unidirectional TVS tubes, most AC protection circuits choose bidirectional TVS tubes, multi-channel protection circuits choose TVS array devices, and high-power protection circuits choose specialized protection modules;

8. When using TVS tubes, consider the discreteness of TVS and minimize the number of series/parallel connections as much as possible.

Copyright © Chipsemi Microelect ronics (Xiamen) Co., Ltd.Min ICP preparation No. 2023006138
Website Design By SZTD