2 layers20 × 19.6 mm
MCPCB 20mm 2835 mule
ebastler/flashlight-mcpcbs
A collection of custom LED and aux LED PCBs for flashlights
12 partsCERN-OHL-P-2.0
2 layers15.7 × 15.2 mm
Fwaa auxpcb
ebastler/flashlight-mcpcbsA collection of custom LED and aux LED PCBs for flashlights
- Size
- 15.7 × 15.2 mm
- Copper layers
- 2
- Thickness
- 0.6 mm
- Parts
- 13
- Nets
- 7
- Pads
- 34
- Tracks, vias
- 135, 31
- Pours
- 52
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 13 Jul 2025
- Updated
- 1 Oct 2026
Overview
Fwaa auxpcb is an open-source printed circuit board by ebastler, from the ebastler/flashlight-mcpcbs repository on GitHub, published under the CERN-OHL-P-2.0 licence. It is a 2-layer board of 15.7 × 15.2 mm with 13 parts on 7 nets, routed with 135 tracks and 31 vias.
Its parts include 6 diodes and 3 resistors.
README
readme.mdMCPCBs
This repository is a collection of various MCPCBs (Some copper with direct thermal path, some aluminum without direct thermal path) and aux PCBs for flashlights.
Many of these PCBs are not tested. Use at your own risk, double check everything before ordering and please open an issue or pull-request if you encounter any errors.
General use MCPCBs
MCPCB_20mm_7070_6_12V
This 20mm MCPCB is for a single XHP70.3 (or footprint compatible) LED and allows configuration to 6V or 12V through wire jumpers. Note: With LHP73B this results in 3V and 6V instead.
MCPCB_20mm_2835_triple
This 20mm (AL) PCB (No direct thermal path!) is for 3 2835 LEDs and intended to be used with Carclo 105xx triple TIR lenses. The solder jumpers on the PCB can be used to wire the LEDs either in a 3S (9V) or a 3P (3V) configuration. This PCB was designed for and together with koef3.
MCPCB_20mm_B35AM_triple
This 20mm (AL) PCB (No direct thermal path!) is for 3 Nichia B35AM LEDs and intended to be used with Carclo 105xx triple TIR lenses.
MCPCB_20mm_2835_mule
This 20mm (AL) PCB (No direct thermal path!) is for 8 2835 LEDs in a 8P (3V) configuration. This PCB was designed for and together with koef3.
Special use PCBs - FWAA
The PCBs in this section were custom made for my FWAA mod using thefreemans 9V boost driver. I replaced the MCPCB, added an aux PCB, and replaced the stock lens with a TS10 lens and a front glass lens (if your FWAA is one of the batches without front glass). These PCBs only work as a set - Al or Cu LED PCB, AUXPCB, TS10 lens and glass lens - and need some modifications to the flashlight host to fit. For more information see my BLF post
MCPCB_fwaa_3s_al
This is an alu core (No direct thermal path!) PCB for my custom FWAA mod.
MCPCB_fwaa_3s_cu
This is a copper DTP MCPCB for my custom FWAA mod.
AUXPCB_fwaa
This is an RGB aux PCB for my FWAA mod with 6 RGB LEDs.
Parts
13| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | LED_KBGR | library.pretty:LED_1615 | D1, D2, D3, D4, D5, D6 |
| 1 | 10k | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 3k3 | Resistor_SMD:R_0402_1005Metric | R3 |
| 1 | 4k7 | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | B | TestPoint:TestPoint_Pad_D1.0mm | TP3 |
| 1 | G | TestPoint:TestPoint_Pad_D1.0mm | TP2 |
| 1 | K | TestPoint:TestPoint_Pad_D1.0mm | TP1 |
| 1 | R | TestPoint:TestPoint_Pad_D1.0mm | TP4 |
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Questions
How big is the Fwaa auxpcb PCB?
It measures 15.7 × 15.2 mm and has 2 copper layers, 0.6 mm thick.
What parts does the Fwaa auxpcb use?
13 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Fwaa auxpcb KiCad files?
From the ebastler/flashlight-mcpcbs repository on GitHub, at the commit this page was made from: the board is AUXPCB_fwaa/fwaa_auxpcb.kicad_pcb and its schematic AUXPCB_fwaa/fwaa_auxpcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Fwaa auxpcb design in my own project?
Its repository publishes it under the CERN-OHL-P-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).