Following this poll, the EE.SE community has determined that component identification questions should be allowed, though we need some better guidelines. This post contains guidelines on how to ask a good component identification question, and what to do when they're not good.
In general, most people will only look at a component identification question once, so make sure you have all the information in place before you post your question.
Rules for Asking:
- Include a clear picture of the part in question, including a ruler if possible for scale.
- Type out any text on the part. Many parts have text that is difficult to read from a picture.
- Include any information about the surrounding circuit, or any knowledge on the type of system your component came from.
- Include the identification tag.
- Make sure the picture of your component is clear, focused, and has something to compare dimensions with (e.g. a ruler)
- Add a second image that shows where the component is located in the board/system
- Show a schematic if you have it, or a tracing of the PCB traces if possible.
- If you know what the package is, or what the specific dimensions are, that can also help (e.g. a 24-pin SOIC)
- Only one component per question. Questions with more than 1 component will probably be closed as "Too Broad"
- "Components" includes connectors, batteries, battery cells and packs, single active devices, passive devices or networks, integrated circuits, and other parts that an EE would use in a design or prototype.
- "Components" does not include: printed circuit boards (bare PCBs), whole circuit boards with components installed (PCB assemblies), parts that fall in another domain (wall outlets or spark plugs), or lawn mowers.
- Parts that were intentionally obfuscated (e.g. the board manufacturer sanded off the part number) will not be considered. This also includes chip-on-board with an opaque epoxy.