4 layers181.7 × 131.5 mm
Hitchco mk4
mk4-dd/Controller-Electrical-Schematics
This repo is a part of the Hitchco MK4 project. You can read more about the project here.
217 parts
2 layers
Gpio rev4
kt-21/board-gpio1GTSR GPIO Board
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 60
- Nets
- 92
- Pads
- 233
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 19 Mar 2025
- Updated
- 19 Mar 2025
Overview
Gpio rev4 is an open-source printed circuit board by kt-21, from the kt-21/board-gpio repository on GitHub. It is a 2-layer board with 60 parts on 92 nets.
It is built around the NCS3S1205SC, R-78C5.0-1.0 and MMBZ27VALT1G, with the CUS520,H3F and ESD12VD3B among its other parts. Its parts include 21 diodes, 14 resistors, 9 capacitors, 4 transistors and 2 connectors. It belongs with the STM32 boards of this library.
Main components
5
NCS3S1205SC
SIP,22x9.5mmIsolated Power ModulesMurata
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
MMBZ27VALT1G
SOT-2310nA 2 24V 26.7V 30pF 3A@8/20us 60V IEC 61000-4-2、IEC 61000-4-4 Unidirectional SOT-23 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
CUS520,H3F
SC-76(SOD-323)1A 200mA 280mV@10mA 30V 5uA@30V Standalone SC-76(SOD-323) Schottky Diodes ROHSToshibaSchottky DiodesESD12VD3B
SOD-3231 110pF 12V 1uA 25V 320W@8/20us ESD IEC 61000-4-5 SOD-323 ESD and Surge Protection (TVS/ESD) ROHSYintESD And Surge Protection (TVS/ESD)
Parts
60| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | MMBZ27VALT1 | Package_TO_SOT_SMD:SOT-23 | D9, D10, D11, D14, D15, D16, D27, D28, D29, D30, D31, D32, D33 |
| 8 | 150 ohms | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R17, R18, R19, R20, R21, R22, R26, R31 |
| 4 | 10uF | Capacitor_SMD:C_1206_3216Metric | C25, C28, C30, C31 |
| 4 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q5, Q6, Q7, Q8 |
| 4 | D_TVS | Diode_SMD:D_SOD-323 | D1, D2, D3, D4 |
| 3 | TEST_POINT-1.5MM-HOLE | TestPoint:TestPoint_Pad_D1.5mm | +3V1, +5V1, GND1 |
| 2 | 0.1u | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 10k | Resistor_SMD:R_0603_1608Metric | R6, R7 |
| 2 | 120 | Resistor_SMD:R_0603_1608Metric | R1, R16 |
| 2 | 2.2uF | Capacitor_SMD:C_0603_1608Metric | C26, C27 |
| 2 | 4.7k | Resistor_SMD:R_0603_1608Metric | R8, R9 |
| 2 | CUS520 | Diode_SMD:D_SOD-323 | D5, D6 |
| 2 | MICRO-FIT_3.0_6POS_2ROW | Connector_Molex:Molex_Micro-Fit_3.0_43045-0612_2x03_P3.00mm_Vertical | I2C1, SPI1 |
| 1 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C29 |
| 1 | 2.2UH | Inductor_SMD:L_Taiyo-Yuden_MD-3030 | L1 |
| 1 | Conn_01x02_Socket | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | ESD12VD3B | Diode_SMD:D_SOD-323 | D12 |
| 1 | Green | LED_SMD:LED_0603_1608Metric | D13 |
| 1 | LM3671 | Package_TO_SOT_SMD:SOT-23-5 | DC3 |
| 1 | NCS3S1205SC | Package_SIP:SIP-8_19x3mm_P2.54mm | DC1 |
| 1 | R-78C5.0-1.0 | Package_TO_SOT_THT:TO-220-3_Vertical | DC2 |
| 1 | STM32G474RETx | Package_QFP:LQFP-64_10x10mm_P0.5mm | U8 |
| 1 | Tag-Connect | Connector:Tag-Connect_TC2050-IDC-FP_2x05_P1.27mm_Vertical | J11 |
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Questions
What parts does the Gpio rev4 use?
60 parts, built around the NCS3S1205SC, R-78C5.0-1.0, MMBZ27VALT1G and CUS520,H3F. 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 Gpio rev4 KiCad files?
From the kt-21/board-gpio repository on GitHub, at the commit this page was made from: the board is gpio_rev4.kicad_pcb and its schematic Connectors.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Gpio rev4 design in my own project?
Its repository states no licence, so its author keeps all rights: ask kt-21 before reusing the design.