I have a few parts that I think should be in the "basic" category, as they seem quite ubiquitous. I'm no expert on performance, just a hobbyist. 1. A super low Quiescent current 3.3v LDO. Good for battery powered projects. [C5446](https://lcsc.com/product-detail/Low-Dropout-Regulators-LDO_XC6206P332MR_C5446.html/?href=jlc-SMT) is not high current enough. Examples of SOT-23-3, SOT89, or SOT-23-5: 1. C296211 (SOT-23) 2. C324581 (SOT-23) 3. C2685033 (SOT-89) 4. C80222 (SOT-89) 5. C296166 (SOT-89) 6. C347386 (SOT-23-5) 2. Low input voltage buck regulator/switching DC-DC regulator (for 5v or  to 3.3v purposes), with super low Quiescent current. Also good for battery projects, with a higher energy demand than LDO. Examples all with the same SOT-23-5 footprint/pinout: 1. C296282 2. C190829 3. C190828 4. C83224 5. C79313 6. C83223 3. SOT-23 mid-level current (3-6 amps) N-Channel MOSFET. Assuming you'd want the same vendor you have for other MOSFETs on Basic: 1. C44209 2. C12390 What happened to C169540?? It went from Basic to Extended?