I have received a respectable 2SK3018 MOSFET, made by Jiangsu Changjiang, from LCSC, only $0.0133 each. Now I'm looking for a low-cost opamp to go with it. Found the TP09, a 6MHz dual, from 3Peak, Vos 400uV, $0.06 each, looks fine, but would like a single type in a SOT-23 package. Picky, picky, picky!
Ah, the LMV321 in SOT-23-5, in stock at LCSC: TI: $0.0735, Diodes: $0.077, 3Peak: $0.05, Gainsil: $0.03. Or in SC-70, 3Peak: $0.059. So slow, only 1MHz. LMV321TP 1.3MHz upgrade.
Hey, 4MHz TP2262 by 3Peak, $0.132, but dual in sop8. Wait, sot-23 TP2261, oops, no stock.