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BackM20-89020xx, 20 Pins per row (https://www.hirose.com/product/document?clcode=CL0537-0834-6-81&productname=DF12E(3.0)-50DP-0.5V(81)&series=DF12&documenttype=2DDrawing⟨=en&documentid=0000992393), generated with kicad-footprint-generator ipc_noLead_generator.py 16-Lead Ultra Thin Quad Flat, No Lead Package - 9x9 mm Body [SOIC], pin 7 removed (Microchip Packaging Specification 00000049BS.pdf DFN package size 11.5x8.5x17.5mm^3, https://www.recom-power.com/pdf/Innoline/R-78HBxx-0.5_L.pdf DCDC-Converter, RECOM, RECOM_R-78E-0.5, SIP-3, pitch 2.54mm, size 30.9x6.2mm^2, drill diamater 1.1mm, pad diameter 3mm, see , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_Phoenix THT Terminal Block TE 282834-7 pitch 2.54mm size 8.08x6.5mm^2 drill 1.1mm pad 2.1mm.
- WR-TBL Series 3114 terminal block Metz Connect.
- Https://kassu2000.blogspot.com/2019/07/ks-20-filter.html ** uses an LM13700 OTA (operational.
- 1755561 12A || order number: 1830693.
- Consider replacing transistor through-holes with sockets.
- Edge socket with 80 contacts AT ISA.