2 layers266.7 × 99.6 mm
Ortho66 Optical
MasterSpoon/Ortho66_Optical
Ortho 66 Optical PCB using KeyChron low profile optical switches
385 parts7
2 layers234.7 × 91.5 mm
A 32 key 'fixed split' keyboard heavily inspired by the Reviung keyboards by gtips.
- Size
- 234.7 × 91.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 95
- Nets
- 63
- Pads
- 373
- Tracks, vias
- 853, 110
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 16 Aug 2020
- Updated
- 10 Nov 2020
Overview
Kawa is an open-source printed circuit board by CoffeeBreakKeyboards, from the CoffeeBreakKeyboards/kawa repository on GitHub. It is a 2-layer board of 234.7 × 91.5 mm with 95 parts on 63 nets, routed with 853 tracks and 110 vias.
It is built around the SRV05-4, DTC123JE and RB060M-60TR, with the SMF9.0CA among its other parts. Its parts include 36 diodes, 34 switches, 11 capacitors, 7 resistors and 3 ICs. It belongs with the keyboards and input boards and the STM32 boards of this library.
Main components
4
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)
DTC123JE
SOT-523-55℃~+150℃ 1 NPN (Pre-Biased) 1.1V 100mA 150mW 2.2kΩ 250MHz 26 300mV 300mV 500mV@100uA,5V 50V 80 NPN SOT-523 Digital Transistors ROHSHXY MOSFETDigital Transistors
RB060M-60TR
SOD-123F1 Independent 2A 30A 50uA@60V 60V 610mV@2A SOD-123F Schottky Diodes ROHSROHM SemiconductorSchottky DiodesSMF9.0CA
SOD-123FLESD And Surge Protection (TVS/ESD)hongjiacheng
README
README.mdKawa
a 32 key 'fixed-split' keyboard
This is currently a work in progress. I am currently learning PCB design for keyboards and this will be my first project. Readme updates will follow further builds.
Parts
95| Qty | Value | Footprint | References |
|---|---|---|---|
| 34 | SOD_123 | Diode_SMD:D_SOD-123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +18 |
| 30 | SW_PUSH | MX_Only:MXOnly-1U-NoLED | SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW18, SW19, SW20, SW22, SW23, SW24, SW25, SW26 +14 |
| 3 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C1, C2, C3 |
| 3 | 100k | Resistor_SMD:R_0805_2012Metric | R1, R2, R3 |
| 3 | 1uF | Capacitor_SMD:C_0805_2012Metric | C6, C8, C9 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric | C7, C10 |
| 2 | 4.7k | Resistor_SMD:R_0805_2012Metric | R8, R9 |
| 2 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C4, C5 |
| 2 | 5K1 | Resistor_SMD:R_0805_2012Metric | R4, R5 |
| 2 | SW_PUSH | MX_Only:MXOnly-2U-NoLED | SW17, SW21 |
| 1 | 4.7nF | Capacitor_SMD:C_0805_2012Metric | C11 |
| 1 | 500mA | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | DTC123J | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | MCP1700-3002E_SOT23 | Package_TO_SOT_SMD:SOT-23 | U2 |
| 1 | OLED | kbd:OLED | OL1 |
| 1 | RB060M-60TR | Diode_SMD:D_SOD-123 | D34 |
| 1 | Rotary_Encoder_Switch | keebio-parts:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW34 |
| 1 | SMF9.0CA | Diode_SMD:D_SOD-123 | D36 |
| 1 | SRV05-4 | Package_TO_SOT_SMD:SOT-23-6 | U3 |
| 1 | STM32F072CBTx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | SW_Push | kbd:ResetSW | SW1 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
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Questions
How big is the Kawa PCB?
It measures 234.7 × 91.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Kawa use?
95 parts, built around the SRV05-4, DTC123JE, RB060M-60TR and SMF9.0CA. 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 Kawa KiCad files?
From the CoffeeBreakKeyboards/kawa repository on GitHub, at the commit this page was made from: the board is pcb/pcb.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Kawa design in my own project?
Its repository states no licence, so its author keeps all rights: ask CoffeeBreakKeyboards before reusing the design.