S518 Ic Datasheet
✅ Download the datasheet from MCC, Diotec, or ON Semiconductor if possible. For unknown S518, treat as 30V/500mA NPN and derate by 20% for reliability.
Note: The "S518" marking is often found on small signal transistors, voltage regulators, or Hall effect sensors from various manufacturers (e.g., Sanyo, Samsung, or generic Chinese brands). This review assumes S518 refers to a common in a TO-92 or SOT-23 package, as this is the most frequent use of that marking code. If your S518 is a different component (e.g., an IC), please check the full manufacturer part number. s518 ic datasheet
