2 layers70 × 50 mm
2 layers130 × 120 mm
1 Distribution Board
basicallysource/sorter-v254- Size
- 130 × 120 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 151
- Nets
- 141
- Pads
- 486
- Tracks, vias
- 902, 67
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 22 Nov 2025
- Updated
- 7 Nov 2026
Overview
1 Distribution Board is an open-source printed circuit board by basicallysource, from the basicallysource/sorter-v2 repository on GitHub. It is a 2-layer board of 130 × 120 mm with 151 parts on 141 nets, routed with 902 tracks and 67 vias.
It is built around the R-78B12-2.0, R-78B6.5-1.5 and R-78C5.0-1.0, with the PCA9685PW, KH-2.54FH-1X20P-H8.5 and PCA9306D among its other parts. Its parts include 63 resistors, 41 connectors, 15 capacitors, 7 ICs and 7 diodes.
Main components
12
R-78B12-2.0
SIP,11.5x8.5mmShort Circuit Protection、Automatic fault recovery SIP,11.5x8.5mm Isolated Power Modules ROHSRECOM PowerIsolated Power ModulesR-78B6.5-1.5
SIP-3Isolated Power ModulesRECOM Power
R-78C5.0-1.0
SIP-3-40℃~+85℃ 1 10.4mm 11.6mm 1A 1mA 350kHz 470uF 5V 5W 75mVp-p 8.5mm 8V~42V 93% Plastic encapsulated type Regulated type Short Circuit Protection、Over-temperature protection、Automatic fault recovery SIP-3 Isolated Power Modules ROHSRECOM PowerIsolated Power Modules
PCA9685PW
TSSOP-28-40℃~+85℃ 100kHz~1MHz 16 2.3V~5.5V 25mA 5.5V Built-in PWM TSSOP-28 LED Drivers ROHSNXP SemiconductorsLED Drivers
KH-2.54FH-1X20P-H8.5
插件,P=2.54mm-40℃~+105℃ 1 1x20P 2.54mm 20P 3A 8.5mm Square Hole Through Hole Top 插件,P=2.54mm Female Headers ROHSShenzhen Kinghelm ElecFemale Headers
PCA9306D
SO-8-40℃~+105℃ 1 1.8V~5.5V 1V~3.6V 2 2Mbps Automatic direction detection、Output enable high-impedance Bidirectional Level translator Open-drain SMBus、I2C SO-8 Translators, Level Shifters ROHSNXP SemiconductorsTranslators, Level Shifters
AO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.45V 1.4W 30V 48mΩ@2.5V 5.7A 50pF 630pF 75pF 7nC@10V N-Channel SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
HC-5264-3A
插件,P=2.5mm-25℃~+85℃ 1 10mm 1x3P 2.5mm 250V 3 3A 3P 4.9mm 6mm Brass Mini-SPOX(5264) PA66 Through Hole Tin UL94V-0 Plugin,P=2.5mm Wire To Board Connector ROHSHCTLWire To Board Connector
SX3M25.000A10F20TNN
SMD3225-4PCrystal OscillatorsShenzhen SCTF ElecDMG2305UX
SOT-23-55℃~+150℃ 1 P-Channel 1.7W 190pF 1V 20V 4.1A 52mΩ@4.5V 7.8nC 740pF P-Channel SOT-23 MOSFETs ROHSTECH PUBLICMOSFETs
MBR120VLSFT1G-TP
SOD-123FUncategorisedTECH PUBLIC
SK84B
SMBSchottky Diodeshongjiacheng
README
README.mdParts
151| Qty | Value | Footprint | References |
|---|---|---|---|
| 32 | 10kΩ | PCM_JLCPCB:R_0603 | R2, R3, R11, R13, R16, R19, R20, R21, R22, R25, R27, R28, R29, R30, R32, R34 +16 |
| 16 | 220Ω | PCM_JLCPCB:R_0603 | R43, R44, R45, R46, R47, R48, R49, R50, R51, R52, R53, R54, R55, R56, R57, R58 |
| 10 | Header-Female-2.54_1x8 | Connector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_Vertical | P1, P3, P4, P6, P7, P9, P10, P12, P13, P15 |
| 6 | 10uF | PCM_JLCPCB:C_0805 | C1, C2, C3, C4, C5, C6 |
| 5 | 100uF | EasyEDA:CAP-SMD_BD6.3-L6.6-W6.6-LS7.4-FD | C11, C12, C13, C14, C15 |
| 5 | 1kΩ | PCM_JLCPCB:R_0603 | R1, R6, R17, R18, R24 |
| 5 | Generic 2.54mm | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J24, J28, J32, J36, J40 |
| 5 | Header-Female-2.54_1x2 | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | P2, P5, P8, P11, P14 |
| 5 | JST PH | Connector_JST:JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | J23, J27, J31, J35, J39 |
| 5 | PTH | TestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mm | TP_5V_1, TP_12V_1, TP_24V_1, TP_GND_1, TP_ServoV_1 |
| 5 | Yellow | PCM_JLCPCB:D_0603 | D3, D4, D5, D6, D7 |
| 4 | MountingHole_3.2mm_M3_ISO7380_Pad | MountingHole:MountingHole_3.2mm_M3_ISO7380_Pad | M1, M1, M1, M1 |
| 3 | 100nF | PCM_JLCPCB:C_0603 | C7, C9, C16 |
| 3 | AO3400A | PCM_JLCPCB:Q_SOT-23 | Q2, Q3, Q4 |
| 3 | Generic 2.54mm | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J8, J9, J10 |
| 3 | JST B02B-XASK | Connector_JST:JST_XA_B02B-XASK-1-A_1x02_P2.50mm_Vertical | J11, J14, J15 |
| 3 | JST VH | Connector_JST:JST_VH_B2P-VH-FB-B_1x02_P3.96mm_Vertical | J1, J2, J3 |
| 2 | 100Ω | PCM_JLCPCB:R_0603 | R14, R35 |
| 2 | 1kΩ | PCM_JLCPCB:R_0805 | R8, R10 |
| 2 | Fuse | Fuse:Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F1, F2 |
| 2 | HC-5264-3A | EasyEDA:CONN-TH_3P-P2.50_HCTL_HC-5264-3A | CN1, CN2 |
| 2 | KH-2.54FH-1X20P-H8.5 | EasyEDA:HDR-TH_20P-P2.54-V-F-2 | U1, U2 |
| 1 | 01x02 Dupont Latching | Connector_Molex:Molex_SL_171971-0002_1x02_P2.54mm_Vertical | J5 |
| 1 | 0Ω | PCM_JLCPCB:R_0603 | R12 |
| 1 | 10uF | PCM_JLCPCB:C_0603 | C10 |
| 1 | 2.2kΩ | PCM_JLCPCB:R_0603 | R33 |
| 1 | 2.2kΩ | PCM_JLCPCB:R_0805 | R9 |
| 1 | 200kΩ | PCM_JLCPCB:R_0603 | R31 |
| 1 | 25MHz | PCM_SparkFun-Clock:Crystal_SMD_3.2x2.5mm | Y1 |
| 1 | 300Ω | PCM_JLCPCB:R_0603 | R72 |
| 1 | 5.1kΩ | PCM_JLCPCB:R_0805 | R7 |
| 1 | Conn_01x04 | Connector_JST:JST_XA_B04B-XASK-1-A_1x04_P2.50mm_Vertical | J4 |
| 1 | Conn_01x06 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J12 |
| 1 | Conn_01x10 | Connector_JST:JST_XA_B10B-XASK-1-A_1x10_P2.50mm_Vertical | J13 |
| 1 | Conn_02x08_Odd_Even | Connector_IDC:IDC-Header_2x08_P2.54mm_Vertical | J17 |
| 1 | DMG2305UX | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | MBR120VLSFT1G | PCM_SparkFun-Semiconductor-Standard:SOD-123 | D1 |
| 1 | Maker's Mark | JAW:JAW | JAW |
| 1 | PCA9306 | Package_SO:Texas_S-PDSO-G8_3x3mm_P0.65mm | U6 |
| 1 | PCA9685PW | Package_SO:TSSOP-28_4.4x9.7mm_P0.65mm | U7 |
| 1 | R-78B12-2.0 | Converter_DCDC:Converter_DCDC_RECOM_R-78B-2.0_THT | U4 |
| 1 | R-78B6.5-1.5 | Converter_DCDC:Converter_DCDC_RECOM_R-78B-2.0_THT | U5 |
| 1 | R-78C5.0-1.0 | Converter_DCDC:Converter_DCDC_RECOM_R-78E-0.5_THT | U3 |
| 1 | SK84B | PCM_JLCPCB:D_SMB | D2 |
| 1 | Tactile Button, 160gf | PCM_JLCPCB:SW_TS-1088-AR02016 | S1 |
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Questions
How big is the 1 Distribution Board PCB?
It measures 130 × 120 mm and has 2 copper layers, 1.6 mm thick.
What parts does the 1 Distribution Board use?
151 parts, built around the R-78B12-2.0, R-78B6.5-1.5, R-78C5.0-1.0 and PCA9685PW. 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 1 Distribution Board KiCad files?
From the basicallysource/sorter-v2 repository on GitHub, at the commit this page was made from: the board is electronics/KiCad/1_Distribution_Board/1_Distribution_Board.kicad_pcb and its schematic electronics/KiCad/0_Adapter_Board/0_Adapter_Board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the 1 Distribution Board design in my own project?
Its repository states no licence, so its author keeps all rights: ask basicallysource before reusing the design.