RTB D16
git4dcc·RTB_D16
About the RTB D16 PCB
RTB D16 is an open source PCB design by git4dcc, published on GitHub under the Apache-2.0 license. It is a 6-layer board measuring 17 × 10.9 mm, with 43 components from 25 distinct parts.
Other key parts include the DRV8231ADSGR, NCP730BMT330TBG and AVR-64DA32. By type, the board carries 26 resistors, 7 capacitors, 3 ICs, 3 transistors, 2 connectors and 2 diodes.
From the project
DCC / Railcom decoder (NEM651, single sided)
My Homebrew D16 decoder is a single sided mobile decoder with NEM-651 connector. The decoder is designed to integrate into the RTB digital control infrastructure.
- RTBD12 - custom (Fleischmann V100) - RTBD13 - custom (Minitrix coach) - RTBD15 - custom (Minitrix V160) - RTBD20 - NEM651 - RTBD21 - Next18 - RTBD22 - Plux16 - RTB_D23 - NEM652
The decoder has the following features, - NEM-651 connector - DCC - DCC-A automatic logon - DCC-R protocol extension - Service Mode Programming - Railcom - Channel 1/2 - POM, xPOM - DYN: Speed, QoS, Track-voltage, Motor-current, AUX-current, Temp…

Main components on the RTB D16
RTB D16 bill of materials (BOM)
43 components, 25 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | DRV8231ADSGR | SON50P200X200X80-9N | IC1 |
| 1 | NCP730BMT330TBG | WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm_ThermalVias | IC2 |
| 1 | AVR-64DA32 | VQFN-32-1EP_5x5mm_P0.5mm_EP3.1x3.1mm | U1 |
| 1 | BC857BDW1 | SOT-666 | Q1 |
| 1 | BC847BDW1 | SOT-666 | Q2 |
| 1 | SSM6N55NU | CSD87502Q2 | Q3 |
| 1 | Service IF | PinHeader_2x04_P1.27mm_Vertical | J1 |
| 1 | NEM651 | PinHeader_1x08_P1.27mm_Horizontal | J2 |
| 1 | LED | LED_0402_1005Metric | D1 |
| 1 | BAS3007ARPPE6327HTSA1 | BF998215 | D3 |
| 3 | 22u/4V | C_0402_1005Metric | C1, C3, C13 |
| 1 | 100u/4V | C_0805_2012Metric | C2 |
| 1 | 1u/35V | C_0603_1608Metric | C4 |
| 1 | 1u | C_0402_1005Metric | C6 |
| 1 | 22u/25V | C_0805_2012Metric | C7 |
| 2 | 3.3k | R_0402_1005Metric | R1, R2 |
| 1 | 22 | R_0402_1005Metric | R3 |
| 3 | 2.2k | R_0402_1005Metric | R4, R5, R6 |
| 4 | 33k | R_0402_1005Metric | R7, R8, R10, R12 |
| 2 | 2.2 | R_0402_1005Metric | R9, R22 |
Show 5 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 6 | 10k | R_0402_1005Metric | R11, R13, R15, R18, R19, R20 |
| 2 | dummy | R_0402_1005Metric | R14, R16 |
| 3 | 220k | R_0402_1005Metric | R17, R34, R35 |
| 1 | 1k | R_0402_1005Metric | R21 |
| 2 | 9.1k | R_0402_1005Metric | R36, R37 |
RTB D16 design files
The KiCad project lives in the git4dcc/RTB_D16 repository on GitHub; these links point at the commit this page was built from.
- LayoutD16.kicad_pcb
RTB D16: common questions
How big is the RTB D16 PCB?
The RTB D16 measures 17 × 10.9 mm, has 6 copper layers and is 0.8 mm thick.
How many components are on the RTB D16?
43 components, from 25 distinct parts. The full bill of materials is listed on this page.
Where can I download the RTB D16 design files?
From the git4dcc/RTB_D16 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the RTB D16 design in my own project?
Yes, under the terms of its Apache-2.0 license, which git4dcc chose for the repository.