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4 layers100 × 150 mmNCU, the printed circuit board in 3D

NCU

sebhalldesigns/NCU

NCU (Network Control Unit)

Open in PCBKitView on GitHub.kicad_pcb
Size
100 × 150 mm
Copper layers
4
Thickness
1.6 mm
Parts
323
Nets
301
Pads
1,150
Tracks, vias
3,884, 1,843
Pours
68
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
11 Feb 2026
Updated
17 Apr 2026

Overview

NCU is an open-source printed circuit board by sebhalldesigns, from the sebhalldesigns/NCU repository on GitHub, published under the MIT licence. It is a 4-layer board of 100 × 150 mm with 323 parts on 301 nets, routed with 3,884 tracks and 1,843 vias.

It is built around the SN65HVD230D, ESD2CAN24DBZRQ1 and USBLC6-2SC6, with the BAT54S, BTS3050EJXUMA1 and 1N4148W among its other parts. Its parts include 126 resistors, 97 capacitors, 25 diodes, 8 ICs and 4 connectors.

Main components

9

README

README.md

NCU

NCU (Network Control Unit)

Main Connector Pinout

GND 12V

CAN0_L CAN0_H CAN1_L CAN1_H

ETH_TXP ETH_TXM ETH_RXP ETH_RXM

USB_VBUS USB_DP USB_DM GND

AN_5V AN_GND AIN_0 AIN_1 AIN_2 AIN_3 AIN_4 AIN_5 AIN_6 AIN_7

HSD_0 HSD_1 HSD_2 HSD_3

LSD_0 LSD_1 LSD_2 LSD_3

TOTAL: 30

Sheets

Root/ CONN_A - OK CONN_B - OK PWR/ - OK PWR_LV_5V - OK PWR_3V3 - OK PWR_A5V - OK PWR_MUX - OK PHY_CAN/ - OK CAN_BUS (x2) - OK PHY_ETH - OK DRIVES/ - OK LSD (x2) - OK HSD (x2) - OK INPUTS/ - OK INPUT_5V (x4) - OK INPUT_20V (x5) - OK GPIO/ - OK INPUT_3V3 (x4) - OK CARD_SD - OK CARD_SIM - OK MOD_WLAN - BAD MOD_PCIE - BAD MCU - BAD

Parts

323
QtyValueFootprintReferences
43100nFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC1, C10, C12, C14, C15, C16, C18, C19, C20, C21, C23, C25, C26, C27, C28, C29 +27
2110kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR12, R13, R14, R15, R16, R37, R38, R41, R43, R44, R45, R46, R59, R123, R125, R126 +5
16100kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR22, R23, R24, R25, R88, R89, R92, R93, R94, R95, R106, R107, R111, R112, R114, R118
13100Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR19, R34, R35, R42, R49, R52, R55, R58, R67, R77, R83, R84, R108
13BAT54SPackage_TO_SOT_SMD:SOT-23D6, D8, D9, D11, D14, D15, D16, D17, D18, D19, D21, D22, D24
1215kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR26, R27, R28, R29, R30, R33, R96, R97, R98, R99, R100, R103
101kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR17, R39, R47, R50, R54, R57, R64, R75, R82, R113
82.2kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR20, R21, R86, R87, R90, R91, R104, R105
7SolderJumper_2_BridgedJumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mmJP1, JP2, JP3, JP4, JP6, JP7, JP11
61uFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC9, C17, C33, C39, C86, C87
6LEDLED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolderD1, D2, D4, D5, D20, D26
6SolderJumper_2_OpenJumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mmJP5, JP8, JP9, JP10, JP12, JP13
5100nCapacitor_SMD:C_0603_1608MetricC43, C67, C69, C72, C97
510uFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC22, C24, C34, C46, C85
58.2kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR53, R56, R63, R74, R81
41.5kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR18, R40, R48, R51
4100RResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR70, R71, R72, R76
422RResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR65, R66, R68, R69
447uFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC55, C58, C94, C95
449.9RResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR5, R6, R7, R9
4BTS3050EJXUMA1SamacSys_Parts:SOIC127P600X115-9NS1, S2, S3, S4
4MountingHoleMountingHole:MountingHole_3.2mm_M3_PadH1, H2, H3, H4
31uCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC11, C54, C88
31uCapacitor_SMD:C_0603_1608MetricC66, C71, C96
20.1uFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC75, C76
2100nCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC49, C57
210uCapacitor_SMD:C_0603_1608MetricC42, C68
2120RResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR85, R109
218kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR119, R121
21N4148WDiode_SMD:D_SOD-123D7, D23
22.2uFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC35, C37
222uFInductor_SMD:L_1206_3216Metric_Pad1.22x1.90mm_HandSolderC83, C84
2260RResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR2, R124
2270RResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR8, R10
24.7kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR32, R102
24.7uFCapacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolderC73, C74
247uFCapacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolderC78, C79
25.1pFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC91, C93
2620RResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR31, R101
26437288-4SamacSys_Parts:64372884J1, J3
275RResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR3, R4
28.2pFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC90, C92
28pFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC6, C8
2CAN_HTestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mmTP14, TP16
2CAN_LTestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mmTP15, TP17
2ESD2CAN24DBZRQ1SamacSys_Parts:SOT95P237X112-3NIC3, IC5
2FCM 1608KF-471T03Inductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolderFB1, FB2
2MountingHole_PadMountingHole:MountingHole_2.7mm_M2.5_PadH5, H6
2SN65HVD230Package_SO:SOIC-8_3.9x4.9mm_P1.27mmU4, U5
2SP0503BAHTPackage_TO_SOT_SMD:SOT-143D13, D28
2SP0504BAHTPackage_TO_SOT_SMD:SOT-23-5D10, D27
2USBLC6-2SC6Package_TO_SOT_SMD:SOT-23-6U1, U2
2VND7E025AJTRSamacSys_Parts:SOP50P600X170-17NIC1, IC4
10.47uHSamacSys_Parts:XFL4012L3
110RResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR36
110pFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC82
112.1kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR11
112VTestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mmTP1
119.1kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR110
119.6kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR117
11k5Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR78
11nFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC2
12.2uHInductor_SMD:L_0805_2012Metric_Pad1.05x1.20mm_HandSolderL1
120021121-00010C4LFSamacSys_Parts:2002112100010C4LFJ10
12041262-1SamacSys_Parts:20412621J7
122.1kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR122
1220pFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC32
122uFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC81
12kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR1
133pFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC77
13V3TestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mmTP9
14.7nFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC80
14.7uFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC13
14.7uHInductor_SMD:L_Coilcraft_XAL7030-472L2
1470pFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC7
15VTestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mmTP8
15kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR120
1680RResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR80
18.06kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR115
188.7kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR116

The 295 most common of 323 parts.

Questions

How big is the NCU PCB?

It measures 100 × 150 mm and has 4 copper layers, 1.6 mm thick.

What parts does the NCU use?

323 parts, built around the SN65HVD230D, ESD2CAN24DBZRQ1, USBLC6-2SC6 and BAT54S. 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 NCU KiCad files?

From the sebhalldesigns/NCU repository on GitHub, at the commit this page was made from: the board is pcb/NCU.kicad_pcb and its schematic pcb/CAN_BUS.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the NCU design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

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