2 layers39.5 × 64.7 mm
4 layers21 × 51 mm
Baker link dev
Baker-link-Lab/baker-link-dev-hardware- Size
- 21 × 51 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 74
- Nets
- 115
- Pads
- 393
- Tracks, vias
- 718, 113
- Pours
- 32
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 20 Dec 2025
- Updated
- 20 Dec 2025
Overview
Baker link dev is an open-source printed circuit board by Baker-link-Lab, from the Baker-link-Lab/baker-link-dev-hardware repository on GitHub, published under the CERN-OHL-P-2.0 licence. It is a 4-layer board of 21 × 51 mm with 74 parts on 115 nets, routed with 718 tracks and 113 vias.
It is built around the W25Q16JVUXIQ, AP2112K-3.3TRG1 and TJ-S1005CL4T5ALC2G-A5, with the TJ-S1005SW4TGLC2R-A5, DMG1012T-7 and RB070MM-30TR among its other parts. Its parts include 28 capacitors, 23 resistors, 7 diodes, 6 ICs and 2 connectors. It belongs with the RP2040 boards of this library.
Main components
8
W25Q16JVUXIQ
USON-8-EP(2x3)-40℃~+85℃ 100,000 cycles 10uA 133MHz 16Mbit 2.7V~3.6V 20 Years 3ms SPI USON-8-EP(2x3) NOR FLASH ROHSWinbond ElecNOR FLASH
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
TJ-S1005CL4T5ALC2G-A5
0402-40℃~+80℃ 111mW 120° 2.8V~3.4V 20mA 520nm~530nm 525nm 630mcd Discrete Diode Emerald Green Top-mount Water Clear 0402 LED Indication - Discrete ROHSTOGIALEDLED Indication - DiscreteTJ-S1005SW4TGLC2R-A5
0402-40℃~+80℃ 100mcd 120° 2.4V 20mA 620nm~630nm 625nm 72mW Discrete Diode Red Top-mount Water Clear 0402 LED Indication - Discrete ROHSTOGIALEDLED Indication - Discrete
DMG1012T-7
SOT-523-55℃~+150℃ 1 N-channel 150mW 20V 500mA 700mΩ@4.5V 750pC 900mV N-Channel ±6V SOT-523 MOSFETs ROHSKUUMOSFETs
RB070MM-30TR
SOD-123F1 Independent 1.5A 30A 30V 490mV@1.5A 50uA@30V SOD-123F Schottky Diodes ROHSROHM SemiconductorSchottky Diodes
SM03B-SRSS-TB(LF)(SN)(P)
-- Lack of specifications ROHSJSTUncategorisedTJ-S1005SW4TGLC9Y-A5
0402-40℃~+80℃ 1.8V~2.4V 100mcd 120° 20mA 585nm~595nm 590nm 72mW Discrete Diode Top-mount Water Clear Yellow 0402 LED Indication - Discrete ROHSTOGIALEDLED Indication - Discrete
README
README.mdBaker Link Dev Hardware
Parts
74| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 0.1uF | Capacitor_SMD:C_0201_0603Metric | C8, C9, C11, C13, C14, C16, C17, C18, C20, C21, C23, C24, C25, C26, C28, C29 |
| 6 | 470R | Resistor_SMD:R_0402_1005Metric | R17, R18, R19, R20, R21, R22 |
| 5 | 2.2uF | Capacitor_SMD:C_0402_1005Metric | C10, C12, C15, C19, C22 |
| 4 | 1K | Resistor_SMD:R_0201_0603Metric | R5, R6, R13, R14 |
| 4 | 30pF | Capacitor_SMD:C_0201_0603Metric | C4, C5, C6, C7 |
| 3 | 10k | Resistor_SMD:R_0201_0603Metric | R2, R7, R8 |
| 3 | TJ-S1005CL4T5ALC2G-A5 | Diode_SMD:D_0402_1005Metric | D2, D6, D7 |
| 2 | 100k | Resistor_SMD:R_0402_1005Metric | R4, R23 |
| 2 | 12MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1, Y2 |
| 2 | 27 | Resistor_SMD:R_0402_1005Metric | R9, R11 |
| 2 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C1, C3 |
| 2 | 5.1K | Resistor_SMD:R_0402_1005Metric | R10, R12 |
| 2 | Alps_Alpine_SKRP | (SamacSys_Parts):Tactile_Switch_SKRP_Series | SW1, SW2 |
| 2 | Raspberry_Pi_RP2040 | (SamacSys_Parts):RP2040_QFN-56 | U1, U2 |
| 2 | TJ-S1005SW4TGLC2R-A5 | Diode_SMD:D_0402_1005Metric | D3, D4 |
| 2 | TestPoint | TestPoint:TestPoint_Pad_2.0x2.0mm | DM1, DP1 |
| 2 | W25Q16JVUXIQ | (SamacSys_Parts):SON50P300X200X60-9N | IC3, IC4 |
| 1 | 1 | Resistor_SMD:R_0201_0603Metric | R16 |
| 1 | 1n | Capacitor_SMD:C_0402_1005Metric | C2 |
| 1 | 200 | Resistor_SMD:R_0201_0603Metric | R15 |
| 1 | 200k | Resistor_SMD:R_0402_1005Metric | R3 |
| 1 | 5.6k | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | AP2112K-3.3TRG1 | (SamacSys_Parts):SOT95P282X130-5N | IC2 |
| 1 | DMG1012T-7 | (SamacSys_Parts):SOT50P160X80-3N | Q1 |
| 1 | HRO_TYPE-C-31-M-12 | (SamacSys_Parts):HRO_TYPE-C-31-M-12 | J1 |
| 1 | LOGO | LOGO | G*** |
| 1 | RB070MM-30TR | (SamacSys_Parts):KDZLV110 | D1 |
| 1 | SM03B-SRSS-TB_LFSN_ | (SamacSys_Parts):SM03B-SRSS-TB_LFSN_ | J2 |
| 1 | TJ-S1005SW4TGLC9Y-A5 | Diode_SMD:D_0402_1005Metric | D5 |
| 1 | ~ | (SamacSys_Parts):PICO_FRAME | U3 |
Questions
How big is the Baker link dev PCB?
It measures 21 × 51 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Baker link dev use?
74 parts, built around the W25Q16JVUXIQ, AP2112K-3.3TRG1, TJ-S1005CL4T5ALC2G-A5 and TJ-S1005SW4TGLC2R-A5. 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 Baker link dev KiCad files?
From the Baker-link-Lab/baker-link-dev-hardware repository on GitHub, at the commit this page was made from: the board is src/baker_link_dev.kicad_pcb and its schematic src/baker_link_dev.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Baker link dev design in my own project?
Its repository publishes it under the CERN-OHL-P-2.0 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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