2 layers228.4 × 85 mm
2 layers236.9 × 86.8 mm
Raii020
unspecworks/raii17splay sweep with ferris
- Size
- 236.9 × 86.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 233
- Nets
- 169
- Pads
- 1,103
- Tracks, vias
- 2,879, 365
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 10 Nov 2025
- Updated
- 3 Mar 2026
Overview
Raii020 is an open-source printed circuit board by unspecworks, from the unspecworks/raii repository on GitHub. It is a 2-layer board of 236.9 × 86.8 mm with 233 parts on 169 nets, routed with 2,879 tracks and 365 vias.
It is built around the RP2040, W25Q128JVSIQ and INA138NA, with the SN74LVC1T45DRL, SRV05-4 and WS2812B among its other parts. Its parts include 76 capacitors, 44 diodes, 38 switches, 28 resistors and 12 ICs. It belongs with the RP2040 boards of this library.
Main components
6
RP2040
LQFN-56(7x7)12bit 133MHz 30 LQFN-56(7x7) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)
W25Q128JVSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 120ms@(32KB) 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
INA138NA
SOT23-52.7V-36V, High-Side Measurement Current Shunt MonitorTexas InstrumentsUncategorised
SN74LVC1T45DRL
SOT-5x3-6-40℃~+85℃ 1 1 1.65V~5.5V 1.65V~5.5V 420Mbps Auto Direction Detection、Power-Off Protection Bidirectional CMOS CMOS Tri-State SOT-5x3-6 Translators, Level Shifters ROHSTexas InstrumentsTranslators / Level Shifters
SRV05-4
SOT-23-6L-55℃~+150℃ 15V 1pF 4A 5V 5uA 6V 80W ESD Four channels IEC 61000-4-2、IEC 61000-4-5 Unidirectional SOT-23-6L ESD and Surge Protection (TVS/ESD) ROHShongjiachengESD And Surge Protection (TVS/ESD)
WS2812B
5mm X 5mm Surface Mount RGB LED with Intelligent ControlWorldsemiUncategorised
README
pcb/README.md
RAII PCB
Ordering
Following this steps.
Hotswap Socket Orientation
If you plan to solder the hotswap sockets yourself, orient the socket so that the rectangular portion faces the center of the switch (the switch center hole). This orientation is recommended for proper case compatibility.
Parts
233| Qty | Value | Footprint | References |
|---|---|---|---|
| 60 | 100n | Capacitor_SMD:C_0402_1005Metric | C14, C17, C18, C19, C25, C26, C27, C28, C29, C30, C31, C32, C33, C34, C35, C36 +44 |
| 34 | SW_Push | Audio_Module:Chocv1_sweep | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +18 |
| 34 | choc_SK6812MINI-E | PCM_marbastlib-choc:LED_choc_6028R | LED1, LED2, LED10, LED11, LED12, LED13, LED14, LED15, LED16, LED17, LED18, LED19, LED20, LED21, LED22, LED23 +18 |
| 14 | 5.1k | Resistor_SMD:R_0402_1005Metric | R1, R2, R3, R8, R9, R12, R13, R14, R17, R18, R19, R20, R21, R22 |
| 10 | 1u | Capacitor_SMD:C_0402_1005Metric | C1, C2, C4, C6, C12, C13, C16, C20, C23, C24 |
| 8 | WS2812B | LED_SMD:LED_WS2812B-Mini_PLCC4_3.5x3.5mm | D3, D4, D5, D6, D7, D8, D9, D10 |
| 4 | 1k | Resistor_SMD:R_0402_1005Metric | R6, R7, R15, R16 |
| 4 | 22p | Capacitor_SMD:C_0402_1005Metric | C10, C11, C21, C22 |
| 4 | 27 | Resistor_SMD:R_0402_1005Metric | R4, R5, R10, R11 |
| 4 | 75k | Resistor_SMD:R_0402_1005Metric | R24, R25, R27, R28 |
| 4 | Conn_01x01 | TestPoint:TestPoint_Pad_D1.0mm | J2, J11, J12, J13 |
| 4 | SW_Pusha | Button_Switch_SMD:SW_SPST_B3U-1000P | SW35, SW36, SW37, SW38 |
| 4 | USB_C_Receptacle_USB2.0_16P | PCM_marbastlib-various:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1, J3, J4, J5 |
| 4 | VAL** | Duckyb-Parts:mouse-bite-5mm-slot-with-space-for-track | mouse-bite-2mm-slot, mouse-bite-2mm-slot, mouse-bite-2mm-slot, mouse-bite-2mm-slot |
| 2 | 0.005 | Resistor_SMD:R_1206_3216Metric | R23, R26 |
| 2 | 10u | Capacitor_SMD:C_0603_1608Metric | C3, C15 |
| 2 | 500mA | Fuse:Fuse_1206_3216Metric | F1, F2 |
| 2 | Conn_01x08_MountingPin | Connector_FFC-FPC:TE_0-1734839-8_1x08-1MP_P0.5mm_Horizontal | J6, J8 |
| 2 | Crystal_GND24 | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1, Y2 |
| 2 | INA138 | Package_TO_SOT_SMD:SOT-23-5 | U11, U12 |
| 2 | LED | LED_SMD:LED_0603_1608Metric | D1, D2 |
| 2 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm | U1, U5 |
| 2 | SN74LVC1T45DRL | Package_TO_SOT_SMD:SOT-563 | U9, U10 |
| 2 | SRV05-4 | PCM_marbastlib-various:SOT-23-6-routable | U3, U6 |
| 2 | W25Q128JVS | Package_SO:SOIC-8_5.23x5.23mm_P1.27mm | U4, U8 |
| 2 | XC6206PxxxMR | Package_TO_SOT_SMD:SOT-23-3 | U2, U7 |
The 216 most common of 233 parts.
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Questions
How big is the Raii020 PCB?
It measures 236.9 × 86.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Raii020 use?
233 parts, built around the RP2040, W25Q128JVSIQ, INA138NA and SN74LVC1T45DRL. 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 Raii020 KiCad files?
From the unspecworks/raii repository on GitHub, at the commit this page was made from: the board is pcb/raii020.kicad_pcb and its schematic pcb/raii020.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Raii020 design in my own project?
Its repository states no licence, so its author keeps all rights: ask unspecworks before reusing the design.