2 layers61.6 × 66.1 mm
2 layers63.8 × 62.1 mm
RTD System Secondary
TlseRacing-electronics/TlseRacing_electronicsevery schematics and PCB
- Size
- 63.8 × 62.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 69
- Nets
- 80
- Pads
- 245
- Tracks, vias
- 448, 38
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 28 Sep 2026
- Updated
- 15 Oct 2026
Overview
RTD System Secondary is an open-source printed circuit board by TlseRacing-electronics, from the TlseRacing-electronics/TlseRacing_electronics repository on GitHub. It is a 2-layer board of 63.8 × 62.1 mm with 69 parts on 80 nets, routed with 448 tracks and 38 vias.
It is built around the SN65HVD230D, LMR33630ADDA and TLV75533PDBV, with the AO3400A, AO3401A and SZNUP2105L among its other parts. Its parts include 21 capacitors, 14 resistors, 6 connectors, 5 ICs and 2 diodes. It belongs with the STM32 boards of this library.
Main components
6
SN65HVD230D
SOIC-8-40℃~+85℃ 1 17mA 1Mbps 370uA 3V~3.6V CAN Transceiver Low-power mode、Wake-up function、ESD protection、Thermal shutdown protection、Bus fault protection、Hot-swap protection SOIC-8 CAN Transceivers ROHSTexas InstrumentsCAN Transceivers
LMR33630ADDA
ESOP-8-40℃~+125℃@(TJ) 1 1V~24V 24uA 3.8V~36V 3A 400kHz Adjustable Buck Buck Built-in Yes ESOP-8 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
TLV75533PDBV
SOT-23-5-40℃~+125℃@(Tj) 1 238mV@(500mA) 25uA 3.3V 46dB@(100kHz) 5.5V 500mA 71.5uVrms Fixed Over Current Protection、Thermal Shutdown、Input undervoltage protection Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
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 SemiconductorMOSFETsAO3401A
SOT-231 P-Channel 14nC@10V 30V 47mΩ@10V、60mΩ@4.5V、85mΩ@2.5V 4A 55pF 645pF 80pF 900mV SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETsSZNUP2105L
SOT-23100nA 2 24V 30pF 32V 350W@8/20us 44V 8A@8/20us Bidirectional ESD IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 SOT-23 ESD and Surge Protection (TVS/ESD) ROHSonsemiESD And Surge Protection (TVS/ESD)
README
README.mdTlseRacing_electronics
all shematique and PCB
Parts
69| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 100nF | Capacitor_SMD:C_1206_3216Metric | C2, C3, C4, C5, C6, C7, C8, C9, C12 |
| 9 | TestPoint | TestPoint:TestPoint_THTPad_1.0x1.0mm_Drill0.5mm | 5V, 12V, CANH, CANL, GND, PB10, RXD, TXD, VCC |
| 5 | 10uF | Capacitor_SMD:C_1206_3216Metric | C10, C13, C19, C20, C21 |
| 4 | 10k | Resistor_SMD:R_1206_3216Metric | R3, R6, R8, R14 |
| 3 | 22uF | Capacitor_SMD:C_1206_3216Metric | C15, C16, C17 |
| 3 | 3.9k | Resistor_SMD:R_1206_3216Metric | R2, R5, R7 |
| 2 | 100k | Resistor_SMD:R_1206_3216Metric | R11, R13 |
| 2 | 1uF | Capacitor_SMD:C_1206_3216Metric | C1, C18 |
| 2 | 220nF | Capacitor_SMD:C_1206_3216Metric | C11, C14 |
| 2 | 5.1k | Resistor_SMD:R_1206_3216Metric | R9, R10 |
| 1 | 100 | Resistor_SMD:R_1206_3216Metric | R4 |
| 1 | 120 | Resistor_SMD:R_1206_3216Metric | R1 |
| 1 | 15V | Package_TO_SOT_SMD:TSOT-23 | D1 |
| 1 | 24.9k | Resistor_SMD:R_1206_3216Metric | R12 |
| 1 | 8uH | Inductor_SMD:L_1206_3216Metric | L1 |
| 1 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | AO3401A | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | APPS | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J5 |
| 1 | Brake_Sensor | Connector_JST:JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J2 |
| 1 | Buzzer | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | BZ1 |
| 1 | Conn_01x06 | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | J4 |
| 1 | FerriteBead_Small | Resistor_SMD:R_1206_3216Metric | FB1 |
| 1 | LMR33630ADDA | Package_SO:Texas_HSOP-8-1EP_3.9x4.9mm_P1.27mm_ThermalVias | U4 |
| 1 | LOGO | LOGO | G*** |
| 1 | RTD Button | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J3 |
| 1 | SN65HVD230 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | STM32G474RETx | Package_QFP:LQFP-64_10x10mm_P0.5mm | U1 |
| 1 | SZNUP2105L | Package_TO_SOT_SMD:SOT-23 | D2 |
| 1 | Screw_Terminal_01x04 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-4_1x04_P5.00mm_Horizontal | J1 |
| 1 | TLV75533PDBV | Package_TO_SOT_SMD:SOT-23-5 | U6 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J6 |
| 1 | WE-TVS-82400102 | Package_TO_SOT_SMD:SOT-23-6 | U3 |
The 63 most common of 69 parts.
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Questions
How big is the RTD System Secondary PCB?
It measures 63.8 × 62.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the RTD System Secondary use?
69 parts, built around the SN65HVD230D, LMR33630ADDA, TLV75533PDBV and AO3400A. 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 RTD System Secondary KiCad files?
From the TlseRacing-electronics/TlseRacing_electronics repository on GitHub, at the commit this page was made from: the board is Secondaire_PCB/RTD_System_Secondary.kicad_pcb and its schematic Microcontroler_2026_2027/Alimentation.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the RTD System Secondary design in my own project?
Its repository states no licence, so its author keeps all rights: ask TlseRacing-electronics before reusing the design.