How to distinguish the positive and negative electrodes of solid-state capacitors?

如何区分固态电容器的正极和负极？

Identification method for positive and negative electrodes of lead type solid-state capacitors: The lead structure solid-state capacitor adopts "negative electrode identification", and the pin corresponding to the colored semicircle is the negative electrode. In addition, it is identified based on the length of the wire. The long lead is the positive pole, and the short lead is the negative pole, as shown in the following figure:

引线式固态电容器正负极的识别方法：引线结构固态电容器采用“负极识别”，彩色半圆对应的引脚为负极。此外，它是根据导线的长度来识别的。长引线为正极，短引线为负极，如下图所示：

Identification method of positive and negative electrodes of patch type solid-state capacitor: there are two semicircles on the capacitor position on the PCB, and the pin corresponding to the colored semicircle is the negative electrode. As shown in the figure below:

贴片式固态电容器正负极的识别方法：在PCB上的电容器位置有两个半圆，彩色半圆对应的引脚为负极。如下图所示：