4 layers85 × 76 mm
4 layers85 × 76 mm
Load cell
npgo22/APRL-ElectricalPCBs for APRL electrical
- Size
- 85 × 76 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 113
- Nets
- 115
- Pads
- 513
- Tracks, vias
- 601, 430
- Pours
- 53
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 17 Sep 2026
- Updated
- 10 Oct 2026
Overview
Load cell is an open-source printed circuit board by npgo22, from the npgo22/APRL-Electrical repository on GitHub. It is a 4-layer board of 85 × 76 mm with 113 parts on 115 nets, routed with 601 tracks and 430 vias.
It is built around the LAN8742AI-CZ-TR, TJA1462ATK/0Z and AP2112K-3.3TRG1, with the GRM188R72A104KA35, GRM1885C1H102FA01 and RT0603BRD074K7L among its other parts. Its parts include 46 capacitors, 27 resistors, 13 diodes, 12 connectors and 5 ICs. It belongs with the sensors and measurement boards and the STM32 boards of this library.
Main components
12
LAN8742AI-CZ-TR
VQFN-24-EP(4x4)-40℃~+85℃ 1.8V~3.3V 12mA 12mA LAN8742A Open-drain Schmitt trigger VQFN-24-EP(4x4) Buffers, Drivers, Receivers, Transceivers ROHSMicrochip TechnologyBuffers, Drivers, Receivers, Transceivers
TJA1462ATK/0Z
HVSON-8-EP(3x3)-40℃~+150℃ 2uA 4.5V~5.5V 70mA 8Mbps CAN FD Transceiver HVSON-8-EP(3x3) CAN Transceivers ROHSNXP SemiconductorsCAN Transceivers
AP2112K-3.3TRG1
SOT-25-5-40℃~+85℃@(Ta) 1 250mV@(600mA) 3.3V 50uVrms 55uA 600mA 65dB@(1kHz) 6V Fixed Over Current Protection、Thermal Shutdown、Enable control Positive SOT-25-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
GRM188R72A104KA35
0603100V 100nF X7R ±10% 0603 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSMurataMultilayer Ceramic Capacitors MLCC - SMD/SMTGRM1885C1H102FA01
06031nF 50V ±1% 0603 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSMurataMultilayer Ceramic Capacitors MLCC - SMD/SMT
RT0603BRD074K7L
0603-55℃~+155℃ 100mW 4.7kΩ 75V Thin Film Resistor ±0.1% ±25ppm/℃ 0603 Chip Resistor - Surface Mount ROHSYAGEOChip Resistor - Surface Mount
VTVS28ASMF-M3-08
DO-219AB(SMF)1 27.9V 34.7V 400W@10/1000us 412pF 47V 50nA 8.21A@10/1000us IEC 61000-4-2 TVS Unidirectional DO-219AB(SMF) ESD and Surge Protection (TVS/ESD) ROHSVishay IntertechnologyESD And Surge Protection (TVS/ESD)
RC0603FR-0710KL
UncategorisedUnknown makerGRM188D72A105KE01
0603100V 1uF X7T ±10% 0603 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSMurataMultilayer Ceramic Capacitors MLCC - SMD/SMT
GRM21BZ71A226ME15
080510V 22uF X7R ±20% 0805 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSMurataMultilayer Ceramic Capacitors MLCC - SMD/SMTGRM1885C1H103JA01
060310nF 50V C0G ±5% 0603 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSMurataMultilayer Ceramic Capacitors MLCC - SMD/SMTGRM188R71A225KE15
060310V 2.2uF X7R ±10% 0603 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSMurataMultilayer Ceramic Capacitors MLCC - SMD/SMT
README
ali/v2/loadcells/README.mdLoad Cell DAQ (LC)
A board that reads a load cell reading. Typically used for engine thrust measurements.
Parts
113| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | 100nF | APRL_Passive:C_0603 | C2, C3, C4, C5, C6, C7, C22, C23, C24, C29, C41, C61, C62 |
| 8 | 1nF | APRL_Passive:C_0603 | C34, C36, C37, C38, C42, C43, C45, C46 |
| 8 | 4.7k | APRL_Passive:R_0603 | R22, R23, R24, R25, R26, R27, R28, R29 |
| 8 | VTVS28ASMF | Diode_SMD:D_SMF | D6, D7, D8, D9, D10, D11, D12, D13 |
| 7 | 10k | APRL_Passive:R_0603 | R3, R4, R5, R6, R8, R17, R51 |
| 6 | 1uF | APRL_Passive:C_0603 | C1, C21, C25, C60, C63, C64 |
| 6 | 22uF | APRL_Passive:C_0805 | C13, C14, C15, C16, C17, C18 |
| 5 | 10nF | APRL_Passive:C_0603 | C35, C39, C44, C47, C48 |
| 5 | LED | APRL_Passive:LED_0603 | D1, D2, D3, D4, D5 |
| 4 | 15pF | APRL_Passive:C_0603 | C8, C9, C27, C28 |
| 4 | 47R | APRL_Passive:R_0603 | R13, R14, R15, R16 |
| 4 | Conn_01x04 | APRL_Connector_Molex:Molex_CLIK-Mate_503159-0401_1x04-1MP_P1.50mm_Vertical | J9, J10, J11, J12 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 2 | 2.2uF | APRL_Passive:C_0603 | C10, C11 |
| 2 | 25 MHz | APRL_Passive:3225-4P-L | Y1, Y2 |
| 2 | 330R | APRL_Passive:R_0603 | R52, R53 |
| 2 | 5.1k | APRL_Passive:R_0603 | R1, R2 |
| 2 | 500mA | APRL_Passive:Fuse_0805_2012Metric | F1, F2 |
| 1 | 1.5k | APRL_Passive:R_0603 | R12 |
| 1 | 12.1k | APRL_Passive:R_0603 | R18 |
| 1 | 120R | APRL_Passive:R_0603 | R11 |
| 1 | 1k | APRL_Passive:R_0603 | R30 |
| 1 | 220nF | APRL_Passive:C_0603 | C40 |
| 1 | 470pF | APRL_Passive:C_0603 | C26 |
| 1 | ADS124S08 | APRL_Package_QFN:Texas_RHB0032M_VQFN-32-1EP_5x5mm_P0.5mm_EP2.1x2.1mm_ThermalVias | U6 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | Conn_01x03 | APRL_Connector_Molex:Molex_CLIK-Mate_503159-0301_1x03-1MP_P1.50mm_Vertical | J8 |
| 1 | Conn_01x05 | APRL_Connector_Molex:Molex_CLIK-Mate_503159-0501_1x05-1MP_P1.50mm_Vertical | J2 |
| 1 | Conn_01x15 | APRL_Connector_Molex:Molex_CLIK-Mate_503159-1501_1x15-1MP_P1.50mm_Vertical | J4 |
| 1 | Conn_02x01 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | Conn_02x09_Counter_Clockwise | Connector_IDC:IDC-Header_2x09_P2.54mm_Vertical | J5 |
| 1 | LAN8742AI | APRL_Package_QFN:VQFN-24-1EP_4x4mm_P0.5mm_EP2.5x2.5mm_ThermalVias | U7 |
| 1 | SKRPANE010 | APRL_Module:SKRPANE010 | SW1 |
| 1 | STM32H563RIV6 | APRL_Package_QFN:QFN-68-1EP_8x8mm_P0.4mm_EP6.4x6.4mm | U1 |
| 1 | Screw_Terminal_01x02 | Connector_Phoenix_MSTB:PhoenixContact_MSTBV_2,5_2-GF-5,08_1x02_P5.08mm_Vertical_ThreadedFlange_MountHole | J6 |
| 1 | TJA1462ATK | APRL_Package_QFN:HVSON-8-1EP_3x3mm_P0.65mm_EP1.6x2.4mm_ThermalVias | U4 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_G-Switch_GT-USB-7051x | J3 |
| 1 | Vertical Ethernet | APRL_Connector:RJ45_Hanrun_HY951180A_Vertical | J26 |
The 112 most common of 113 parts.
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Questions
How big is the Load cell PCB?
It measures 85 × 76 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Load cell use?
113 parts, built around the LAN8742AI-CZ-TR, TJA1462ATK/0Z, AP2112K-3.3TRG1 and GRM188R72A104KA35. 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 Load cell KiCad files?
From the npgo22/APRL-Electrical repository on GitHub, at the commit this page was made from: the board is ali/v2/loadcells/load-cell.kicad_pcb and its schematic ali/v1/ThermoBoard/ThermoBoard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Load cell design in my own project?
Its repository states no licence, so its author keeps all rights: ask npgo22 before reusing the design.