2 layers144.7 × 98.2 mm
2 layers144.7 × 98.2 mm
Sichergo left
steewbsd/SichergoMechanical Keyboard PCB
- Size
- 144.7 × 98.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 118
- Nets
- 96
- Pads
- 349
- Tracks, vias
- 773, 164
- Pours
- 223
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 10 Feb 2025
- Updated
- 28 Nov 2025
Overview
Sichergo left is an open-source printed circuit board by steewbsd, from the steewbsd/Sichergo repository on GitHub. It is a 2-layer board of 144.7 × 98.2 mm with 118 parts on 96 nets, routed with 773 tracks and 164 vias.
It is built around the SN74LVC1G125DBV, TPD4E05U06DQAR and YTS1C0033BBG01, with the CD4148WP, 1812L050/30PR and CPDUR5V0HE-HF among its other parts. Its parts include 37 diodes, 28 resistors, 19 switches, 13 capacitors and 6 ICs. It belongs with the STM32 boards of this library.
Main components
8
SN74LVC1G125DBV
SOT-23-5-40℃~+125℃ 1 1 1.65V~5.5V 10uA 3.7ns@3.3V,15pF 32mA 32mA 74LVC Tri-State Unidirectional SOT-23-5 Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsSpecialty Logic
TPD4E05U06DQAR
USON-10-40℃~+125℃ 0.5pF 10nA 14V 2.5A@8/20us 40W@8/20us 5.5V 6.5V ESD Four channels IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Unidirectional USON-10(1x2.5) ESD and Surge Protection (TVS/ESD) ROHSTexas InstrumentsESD Protection Devices
YTS1C0033BBG01
SMD-30℃~+80℃ 100,000 cycles 12V 50mA Black PC Pin Rectangular Button SPST-NO Through Hole SMD Pushbutton Switches ROHSYIYUANPushbutton Switches
CD4148WP
1206-55℃~+150℃ 1 Independent 1.25V@100mA 150mA 1A 400mW 4ns 5uA@75V 75V 1206 Switching Diodes ROHSLIZSwitching Diodes
1812L050/30PR
1812-40℃~+85℃ 1.25mm 100A 150ms 150mΩ 1A 1Ω 3.41mm 30V 4.73mm 500mA 800mW 1812 Resettable Fuses ROHSLittelfuseResettable Fuses
CPDUR5V0HE-HF
0603(SOD-523F)-40℃~+125℃ 1 100nA 128W@8/20us 15pF 16V 5V 7V 8A@8/20us Bidirectional ESD IEC 61000-4-2、IEC 61000-4-5 0603(SOD-523F) ESD and Surge Protection (TVS/ESD) ROHSComchipESD And Surge Protection (TVS/ESD)
MS-22C01-G010
SMD,7x3.5mm-40℃~+85℃ 10,000 Cycles 12V 2.5mm 3.5mm 50mA 7mm Black DPDT Gull Wing Rectangular Columnar Surface Mount,Vertical SMD,7x3.5mm Slide Switches ROHSG-SwitchSlide Switches
PJ-327E-SMT
SMD-20℃~+70℃ 3.5mm Headphone Jack 30V 500mA SMD Audio Connectors ROHSXKB ConnectionAudio Connectors (Headphones)
README
README.md
Parts
118| Qty | Value | Footprint | References |
|---|---|---|---|
| 18 | 1 kohm | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25 +2 |
| 18 | CD4148W | Diode_SMD:D_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D5, D11, D12, D13, D18, D19, D20, D21, D26, D27, D28, D29, D34, D35, D36, D37 +2 |
| 18 | LED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D2, D3, D4, D10, D14, D15, D16, D17, D22, D23, D24, D25, D30, D31, D32, D33 +2 |
| 18 | SW_Push | personal:Gateron_Milky_Yellow | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18 +2 |
| 7 | TestPoint | TestPoint:TestPoint_THTPad_1.0x1.0mm_Drill0.5mm | TP1, TP2, TP3, TP4, TP7, TP8, TP9 |
| 6 | 0.1 µF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C6, C7, C8, C9, C11 |
| 6 | 4.7 kohm | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3, R4, R5, R6, R7, R28 |
| 3 | 5.1 kohm | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R8 |
| 2 | 10 pF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C4 |
| 2 | 10 µF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C10 |
| 2 | SN74LVC1G125DBV | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U5, U6 |
| 1 | 1 µF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C12 |
| 1 | 1.5 kohm | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R31 |
| 1 | 10000 pF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C13 |
| 1 | 120 Ohm @ 100 MHz | Inductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | L1 |
| 1 | 1812L050/30PR | Fuse:Fuse_1812_4532Metric_Pad1.30x3.40mm_HandSolder | F1 |
| 1 | 22 µF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2 |
| 1 | 2N7002 | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q1 |
| 1 | AZ1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | CPDUR5V0HE-HF | Diode_SMD:D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1 |
| 1 | Conn_01x04_Pin | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Horizontal | J1 |
| 1 | Conn_01x04_Pin | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J2 |
| 1 | Crystal_GND24 | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm_HandSoldering | Y1 |
| 1 | MS-22C01-G010 | easyeda2kicad:SW-SMD_6P-L7.2-W3.5-P2.50-LS6.0-TL | SW19 |
| 1 | PJ-327E-SMT | easyeda2kicad:AUDIO-SMD_PJ-327E-SMT | Audio1 |
| 1 | STM32F103C8Tx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U4 |
| 1 | TPD4E05U06DQA | Package_SON:USON-10_2.5x1.0mm_P0.5mm | U2 |
| 1 | TYPE-C 16PIN 2MD(073) | easyeda2kicad:USB-C-SMD_TYPE-C-6PIN-2MD-073 | USB1 |
| 1 | YTS1C0033BBG01 | easyeda2kicad:SW-SMD_YIYUAN_YTS1C003XXX | U3 |
More from steewbsd/Sichergo
1Similar boards
- 2 layers125 × 85 mm
- 4 layers50 × 50 mm
- 4 layers52.5 × 80 mm
- 2 layers148 × 30 mm
Ui board 1u
betz-engineering/ui_board_1u
User interface PCB for 1U chassis front-panels
85 parts1CERN-OHL-P-2.0 - 2 layers57.8 × 48.6 mm
Esp32-weather epd
Diabltica/esp32-weather-epd_pcb
A low-power E-Paper weather display powered by an ESP32 microcontroller. Utilizes the OpenWeatherMap API.
67 partsGPL-3.0 - 4 layers100 × 100 mm
- 4 layers170 × 100 mm
- 2 layers80 × 65 mm
PCB PT100 SM50
VIXCA22/Proyecto_PCB_PT100_SM50
Tarjeta de acondicionamiento de senales PT100 y SM-50
67 parts1
Questions
How big is the Sichergo left PCB?
It measures 144.7 × 98.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Sichergo left use?
118 parts, built around the SN74LVC1G125DBV, TPD4E05U06DQAR, YTS1C0033BBG01 and CD4148WP. 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 Sichergo left KiCad files?
From the steewbsd/Sichergo repository on GitHub, at the commit this page was made from: the board is sichergo-left/sichergo-left.kicad_pcb and its schematic sichergo-left/InterTypeC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Sichergo left design in my own project?
Its repository states no licence, so its author keeps all rights: ask steewbsd before reusing the design.