2 layers144.7 × 98.2 mm
2 layers125 × 85 mm
Tastatur
steewbsd/Tastatur- Size
- 125 × 85 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 145
- Nets
- 106
- Pads
- 501
- Tracks, vias
- 1,103, 235
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 12 Jul 2025
- Updated
- 31 Mar 2026
Overview
Tastatur is an open-source printed circuit board by steewbsd, from the steewbsd/Tastatur repository on GitHub. It is a 2-layer board of 125 × 85 mm with 145 parts on 106 nets, routed with 1,103 tracks and 235 vias.
It is built around the CH592F, MT3608 and AP2112K-3.3, with the CD4052BM, LM393 and TP4056-42-ESOP8 among its other parts. Its parts include 44 diodes, 33 capacitors, 20 switches, 19 resistors and 7 ICs. It belongs with the NXP (LPC, Kinetis, i.MX RT) boards of this library.
Main components
12
CH592F
QFN-28(4x4)RF Transceiver ICsWCH (Nanjing Qinheng Microelectronics)
MT3608
SOT-23-6-40℃~+85℃ 1 1.2MHz 100uA、1.6mA 2A 2V~24V Adjustable Boost Boost Built-in No SOT-23-6 DC-DC Converters ROHS西安航天民芯DC-DC Converters
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
CD4052BM
SOP-16-55℃~+125℃ 15ns 2 40MHz 4:1 5V~15V 80Ω Level shifting SOP-16 Analog Switches, Multiplexers ROHSJSMSEMIAnalog Switches, Multiplexers
LM393
SOP-8-16V~16V 0℃~+70℃ 2 2.5mA 250nA 2V~36V 36V 5mV 5nA Fail-safe function Open-drain SOP-8 Comparators ROHSMSKSEMIComparators
TP4056-42-ESOP8
ESOP-8-40℃~+85℃ 1 1A 2uA 4.2V 4V~8V Charging IC Lithium Battery Support ESOP-8 Battery Management ROHSTOPPOWERBattery ManagementUSBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
RB521CS-30
SOD-923SOD-923 Schottky Diodes ROHSTDDSchottky Diodes
SK6805-EC15
SMD-4P,1.5x1.5mm-40℃~+80℃ 0.5mA 0.65mm 1.5mm 1.5mm 120mcd~240mcd 160° 1kHz 2000V 20mcd~40mcd 3.5V~5.5V 460nm~470nm 50mcd~100mcd 520nm~530nm 620nm~625nm 800Kbit/s Built-in power-on reset circuit、Built-in one-way transmission function Semi-transparent lens SMD-4P,1.5x1.5mm RGB LEDs(Built-in IC) ROHSOPSCO OptoelectronicsRGB LEDs(Built-In IC)
SI2301CDS-T1-GE3
SOT-23-55℃~+150℃ 1 P-Channel 1.6W 10nC@4.5V 142mΩ@2.5V 1V 20V 3.1A 405pF 55pF 75pF P-Channel SOT-23 MOSFETs ROHSVishay IntertechnologyMOSFETs
1812L050/30PR
1812-40℃~+85℃ 1.25mm 100A 150ms 150mΩ 1A 1Ω 3.41mm 30V 4.73mm 500mA 800mW 1812 Resettable Fuses ROHSLittelfuseResettable Fuses
2N7002HW
SC-70(SOT-323)MOSFETsLeiditech
Parts
145| Qty | Value | Footprint | References |
|---|---|---|---|
| 22 | 100n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C103, C113, C114, C201, C202, C203, C204, C205, C206, C207, C208, C209, C210, C211, C212, C213 +6 |
| 19 | RB521CS-30 | Diode_SMD:D_SOD-923 | D201, D202, D203, D204, D205, D206, D207, D208, D209, D210, D211, D212, D213, D214, D215, D216 +3 |
| 19 | SK6805-EC15 | LED_SMD:LED_SK6812_EC15_1.5x1.5mm | D251, D252, D253, D254, D255, D256, D257, D258, D259, D260, D261, D262, D263, D264, D265, D266 +3 |
| 19 | SW_Push | PCM_Switch_Keyboard_Cherry_MX:SW_Cherry_MX_PCB_1.00u | SW201, SW202, SW203, SW204, SW205, SW206, SW207, SW208, SW209, SW210, SW211, SW212, SW213, SW214, SW215, SW216 +3 |
| 6 | SI2301CDS-T1-GE3 | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q101, Q102, Q103, Q104, Q105, Q107 |
| 4 | 500R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R201, R202, R203, R204 |
| 3 | 22u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C107, C108, C110 |
| 3 | 330R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R106, R107, R114 |
| 3 | 50k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R108, R110, R205 |
| 3 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP101, TP103, TP104 |
| 2 | 10p | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C105, C106 |
| 2 | 10u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C109, C111 |
| 2 | 5k1 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R101, R102 |
| 2 | MountingHole | MountingHole:MountingHole_2.2mm_M2_ISO7380 | H201, H202 |
| 2 | RED | LED_SMD:LED_0603_1608Metric | D104, D106 |
| 1 | 0R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R103 |
| 1 | 10u | Inductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | L101 |
| 1 | 110k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R104 |
| 1 | 120 Ohm @ 100 MHz | Inductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | L103 |
| 1 | 15k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R105 |
| 1 | 1812L050/30PR | Fuse:Fuse_1812_4532Metric_Pad1.30x3.40mm_HandSolder | F101 |
| 1 | 2N7002HW | Package_TO_SOT_SMD:SOT-323_SC-70_Handsoldering | Q106 |
| 1 | 2k2 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R109 |
| 1 | 2u2 | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C104 |
| 1 | 32MHz | Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm | Y101 |
| 1 | 33k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R111 |
| 1 | 470n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C101 |
| 1 | 470u | Capacitor_SMD:CP_Elec_6.3x7.7 | C112 |
| 1 | 4u7 | Inductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | L102 |
| 1 | 4u7 | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C102 |
| 1 | 51k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R112 |
| 1 | 56k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R113 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U103 |
| 1 | Antenna_Shield | Inductor_SMD:L_1206_3216Metric | AE101 |
| 1 | Battery_Cell | Battery:BatteryHolder_Keystone_1058_1x2032 | BT101 |
| 1 | CD4052B | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U106 |
| 1 | CH592F | steew:CH592F | U102 |
| 1 | CPDUR5V0HE-HF | Diode_SMD:D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D101 |
| 1 | Conn_01x04_Pin | Connector_JST:JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | J102 |
| 1 | DDZ9678-7 | Diode_SMD:D_SOD-123F | D105 |
| 1 | GREEN | LED_SMD:LED_0603_1608Metric | D103 |
| 1 | LM393 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U107 |
| 1 | LMBR130T1G | Diode_SMD:D_SOD-123 | D102 |
| 1 | MK-12C02-G020 | Button_Switch_SMD:SW_SPDT_PCM12 | SW221 |
| 1 | MT3608 | Package_TO_SOT_SMD:SOT-23-6 | U104 |
| 1 | TP4056-42-ESOP8 | Package_SO:SOP-8-1EP_4.57x4.57mm_P1.27mm_EP4.57x4.45mm | U105 |
| 1 | TYPE-C 16PIN 2MD(073) | easyeda2kicad:USB-C-SMD_TYPE-C-6PIN-2MD-073 | USB101 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U101 |
| 1 | XT60PW-M | Connector_AMASS:AMASS_XT60PW-M_1x02_P7.20mm_Horizontal | J103 |
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Questions
How big is the Tastatur PCB?
It measures 125 × 85 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Tastatur use?
145 parts, built around the CH592F, MT3608, AP2112K-3.3 and CD4052BM. 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 Tastatur KiCad files?
From the steewbsd/Tastatur repository on GitHub, at the commit this page was made from: the board is Left/Tastatur.kicad_pcb and its schematic Left/Matrix.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Tastatur design in my own project?
Its repository states no licence, so its author keeps all rights: ask steewbsd before reusing the design.