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BackHttp://www.farnell.com/datasheets/1505853.pdf BC-2001 CR2032 2032 Battery Holder SMD Tactile Switch, B3SL Middle Stroke Tactile Switch Ultra-small-sized Tactile Switch with High Contact Reliability, Top-actuated Model, with Ground Terminal, without Boss Ultra-small-sized Tactile Switch with High Contact Reliability, Top-actuated Model, without Ground Terminal, with Boss Ultra-small-sized Tactile Switch with High Contact Reliability, Side-actuated Model, without Ground Terminal, without Boss Ultra-small-sized Tactile Switch Ultra-small-sized Tactile Switch for High-Density Packaging Surface Mount Single Row 2.54mm (0.1 inch) Pitch PCB Connector, M20-89009xx, 9 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xxx-dv-xx-xx-xx-mkt.pdf.
- $5.89/board, from pcbshopper JLCPCB - China.
- Orange. * Expensive, about $3 each.
- Http://www.abracon.com/Oscillators/ASV.pdf, hand-soldering, 7.0x5.1mm^2 package FN.