The SKBOWE is a 100% open source design. 1
This page will stay updated with technical design details to help those DIY now that the order is closed.
Version 2.0.4 – Batch 1/2
PCB design files
- ExpressPCB: skbowe_2.0.4.pcb
- Gerber: RQUX7861L.zip
- PDF: skbowe_2.0.4_art.pdf
Update 9/12/19: Scott G. has shared the PCB on OSHPark upload:
https://oshpark.com/shared_projects/r1kDJuby
BOM (each unit – 2 per vehicle)
- 5x Capacitors (C1-C5) 565-4356-ND ELBK350ELL842AM40S 8400µF 35V Aluminum Electrolytic Capacitors Radial, Can 15 mOhm @ 100kHz 5000 Hrs @ 105°C 0.295″ (7.50mm) leads, 0.709″ Dia (18.00mm) x 1.634″ (41.50mm) Height. Datasheet: cap_datasheet.pdf
- 2x Diodes (D1-D2): 497-12305-ND STPS20SM60D Diode Schottky 60V 20A Through Hole TO-220AC diode_datasheet.pdf
- 1x Diode (D3): 1N4004GDITR-ND 1N4004 Diode Standard 400V 1A Through Hole DO-41 1n4004_datasheet.pdf
- 1x Resistor(R1): RNF14FTD10K0TR-ND 10k Ohm ±1% 0.25W, 1/4W Through Hole Resistor Axial Flame Retardant Coating, Safety Metal Film
- Enclosure: TF-2409TX + C-0204-N
- Potting: MG Chemicals 832TC-2L Thermally Conductive Black Epoxy Encapsulating and Potting Compound (15oz is enough to make 3-4 sets!)
- Wire: 14 AWG Gauge Tinned Marine Primary Wire – USA – USCG – ABYC – RoHS COMPLIANT – UL 1426 BOAT CABLE
- Braid: 1/4″ Tinned Copper Flat Braid – ROHS Nom. Circular Mills: 4200
- Connectors: 9005/9006 Male/Female 14-16AWG. Yellow 3M crimp rings 3/8″ stud
Instructions/Info
- Building:
- Potting: https://www.skbowe.com/a/2017/07/11/skbowe-potting-day-1/