- 2 5mm LEDs - one per step // 1 to 4.9 milli Ohm (http://http://www.vishay.com/docs/30108/wsk.pdf Shunt Resistor SMD 1206 https://ww2.minicircuits.com/case_style/FV1206-5.pdf Mini-Circuits Filter SMD 1206 (3216 Metric), square (rectangular) end terminal, IPC_7351 nominal with elongated pad for handsoldering. (Body size from: http://www.kemet.com/Lists/ProductCatalog/Attachments/253/KEM_TC101_STD.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py SOP, 18 Pin (JEDEC MO-153 Var EF https://www.jedec.org/document_search?search_api_views_fulltext=MO-153), generated.