2 layers131.5 × 184.4 mm
4 layers75 × 78 mm
Btyp
crides/btypA keyboard that magsafe's to the back of your phone for typing on the go
- Size
- 75 × 78 mm
- Copper layers
- 4
- Thickness
- 0.8 mm
- Parts
- 67
- Nets
- 74
- Pads
- 392
- Tracks, vias
- 653, 108
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 16 Aug 2025
- Updated
- 14 Sep 2026
Overview
Btyp is an open-source printed circuit board by crides, from the crides/btyp repository on GitHub. It is a 4-layer board of 75 × 78 mm with 67 parts on 74 nets, routed with 653 tracks and 108 vias.
It is built around the BQ24075RGT, DW01A and FS8205, with the SRV05-4 and AO3400A among its other parts. Its parts include 26 switches, 13 resistors, 7 diodes, 5 capacitors and 5 ICs.
Main components
5
BQ24075RGT
QFN-16-EP(3x3)-40℃~+125℃ 1.5A 4.2V 4.35V~6.4V 6.5uA Charging IC Lithium Battery Not supported Support QFN-16-EP(3x3) Battery Management ROHSTexas InstrumentsBattery Management
DW01A
SOT-23-6L-40℃~+85℃ 1 2.5V 300mV~10V 3uA 4.3V Protection IC Support SOT-23-6L Battery Management ROHSPUOLOPBattery ManagementFS8205
SOT-23-6-55℃~+150℃ 1.2V 1W 2 N-Channel 20V 37mΩ@2.5V 6A N-Channel SOT-23-6 MOSFETs ROHSFORTUNEMOSFETsSRV05-4
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)
AO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.45V 1.4W 30V 48mΩ@2.5V 5.7A 50pF 630pF 75pF 7nC@10V N-Channel SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
Parts
67| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | diode-choc | pg1316:PG1316M | K1, K2, K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K20, K21, K22, K23 +8 |
| 6 | ~ | Package_TO_SOT_SMD:SOT-23-5 | D2, D3, D4, D5, D6, D7 |
| 4 | 100k | Resistor_SMD:R_0603_1608Metric | R5, R8, R21, R25 |
| 4 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4 |
| 4 | MountingHole_Pad | soldered-nuts:M2 | H1, H2, H3, H4 |
| 3 | 1k | Resistor_SMD:R_0603_1608Metric | R3, R6, R27 |
| 2 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R7, R9 |
| 1 | 0.1u | Capacitor_SMD:C_0603_1608Metric | C5 |
| 1 | 100 | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 10uH | Inductor_SMD:L_0603_1608Metric | L3 |
| 1 | 625m | Resistor_SMD:R_0603_1608Metric | R10 |
| 1 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | BQ24075 | Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.68x1.68mm_ThermalVias | U3 |
| 1 | Battery_Cell | btyp:RJD2032C1ST1 | BT1 |
| 1 | Crystal_Small | Crystal:Crystal_SMD_MicroCrystal_CM9V-T1A-2Pin_1.6x1.0mm | Y1 |
| 1 | DW01A | Package_TO_SOT_SMD:SOT-23-6 | U1 |
| 1 | FS8205 | Package_TO_SOT_SMD:SOT-23-6 | U2 |
| 1 | FerriteBead_Small | Inductor_SMD:L_1206_3216Metric | FB1 |
| 1 | RED | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | SRV05-4 | Package_TO_SOT_SMD:SOT-23-6 | U8 |
| 1 | SW_Push | Button_Switch_SMD:SW_SPST_EVQP7C | SW1 |
| 1 | SW_SPDT | Button_Switch_SMD:SW_SPDT_PCM12 | SW2 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J2 |
| 1 | e73-2gm08s1c-no-underside | mcu:e73-2g4m08s1c-no-underside | U12 |
The 66 most common of 67 parts.
Questions
How big is the Btyp PCB?
It measures 75 × 78 mm and has 4 copper layers, 0.8 mm thick.
What parts does the Btyp use?
67 parts, built around the BQ24075RGT, DW01A, FS8205 and SRV05-4. 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 Btyp KiCad files?
From the crides/btyp repository on GitHub, at the commit this page was made from: the board is btyp.kicad_pcb and its schematic btyp.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Btyp design in my own project?
Its repository states no licence, so its author keeps all rights: ask crides before reusing the design.
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