

PCB nRF
50% wireless keyboard
- Size
- 266.7 × 81.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 123
- Nets
- 104
- Pads
- 673
- Tracks, vias
- 1,257, 98
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 5 Jan 2020
- Updated
- 6 Jun 2020
Overview
PCB nRF is an open-source printed circuit board by Ladniy, from the Ladniy/Infinity50 repository on GitHub, published under the MIT licence. It is a 2-layer board of 266.7 × 81.4 mm with 123 parts on 104 nets, routed with 1,257 tracks and 98 vias.
It is built around the E73-2G4M08S1C, AP2112K-3.3 and MCP73831, with the AO3406, AO3407 and MSK-12C02 among its other parts. Its parts include 51 diodes, 51 switches, 9 resistors, 3 capacitors and 3 ICs.
Main components
6E73-2G4M08S1C
SMD,18x13mm-103dBm、-95dBm -40℃~+85℃ 120m 17.05mA 3.3V 8.27mA 8dBm Bluetooth 5.0、Bluetooth 4.2 PWM、SPI、ADC、USB、I2C、ISP、JTAG、DMA nRF52840 Chip SMD,18x13mm Bluetooth Modules ROHSChengdu Ebyte Elec TechBluetooth ModulesAP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorisedMCP73831
UncategorisedMicrochip TechnologyAO3406
SOT-23-55℃~+150℃ 1 N-channel 1.4W 1.5V 210pF 23pF 3.6A 30V 3nC@4.5V 70mΩ@4.5V SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETsAO3407
SOT-23-55℃~+150℃ 1 P-Channel 1.4W 1V 260pF 30V 37pF 4.1A 75mΩ@4.5V P-Channel ±20V SOT-23 MOSFETs ROHSBORNMOSFETsMSK-12C02
SMDSMD New Arrivals ROHShanxiaUncategorised
README
README.mdInfinity50
Parts
123| Qty | Value | Footprint | References |
|---|---|---|---|
| 48 | 1n4148 | Used_Footprints:Diode_SMD_SOD-123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +32 |
| 40 | SW_Push | Infinity:SW_MxHotswap_1u | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23, SW24 +24 |
| 4 | SW_Push | Infinity:SW_MxHotswap_1.25u | SW15, SW39, SW43, SW48 |
| 3 | 10uF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3 |
| 2 | 100K | Resistor_SMD:R_0603_1608Metric | R8, R9 |
| 2 | 10K | Resistor_SMD:R_0603_1608Metric | R6, R7 |
| 2 | 1K | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 2 | 5.1K | Resistor_SMD:R_0603_1608Metric | R4, R5 |
| 2 | SW_Push | Infinity:SW_MxHotswap_1.75u | SW27, SW28 |
| 1 | 1N5819 | Diode_SMD:D_SOD-123 | D51 |
| 1 | 4.7K | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | AO3406 | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | AO3407 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | BT | LED_SMD:LED_0603_1608Metric | D49 |
| 1 | CHG | LED_SMD:LED_0603_1608Metric | D50 |
| 1 | Conn_01x02 | nrfmicro:connectro_bat | J3 |
| 1 | Conn_01x04 | nrfmicro:connector_swd | J2 |
| 1 | E73-2G4M08S1C | nrfmicro:E73-2G4M08S1C-52840 | U1 |
| 1 | LOGO | Infinity:InfinityLogo | G1 |
| 1 | MCP73831 | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | MSK-12C02 | nrfmicro:switch_MSK-12C02_smd | SW51 |
| 1 | SW_Push | Infinity:SW_MxHotswap_2.75u | SW46 |
| 1 | SW_Push | Infinity:SW_MxHotswap_2.25u | SW45 |
| 1 | SW_Push | Infinity:SW_MxHotswap_7u | SW41 |
| 1 | SW_Push | Keebio-Parts:SW_SPST_TL3342 | SW50 |
| 1 | USB-C USB 2.0 MC-372 | Type-C:HRO-TYPE-C-31-M-12 | J1 |
Questions
How big is the PCB nRF PCB?
It measures 266.7 × 81.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the PCB nRF use?
123 parts, built around the E73-2G4M08S1C, AP2112K-3.3, MCP73831 and AO3406. 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 PCB nRF KiCad files?
From the Ladniy/Infinity50 repository on GitHub, at the commit this page was made from: the board is PCB_nRF/PCB.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the PCB nRF design in my own project?
Its repository publishes it under the MIT 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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