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The DL2025 and CR2025 are equivalents under most circumstances. But they still vary in some conditions. The following article will introduce the details of both batteries and the differences between them.

A small outline transistor (SOT) is a discrete surface mount transistor with a small footprint that is extensively used in consumer electronics. SOT23 versions are the most common, although manufacturers also provide the nearly identical thin tiny outline transistor (TSOT) package, which is useful when height is a concern. The article is going to introduce the differences between the two package.