6 layers89 × 165 mm
4 layers89 × 137 mm
Qaxe
shufps/qaxe246qaxe bitcoin miner
- Size
- 89 × 137 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 211
- Nets
- 170
- Pads
- 791
- Tracks, vias
- 1,547, 457
- Pours
- 20
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 15 Jan 2024
- Updated
- 21 Jan 2026
Overview
Qaxe is an open-source printed circuit board by shufps, from the shufps/qaxe repository on GitHub, published under the CERN-OHL-S-2.0 licence. It is a 4-layer board of 89 × 137 mm with 211 parts on 170 nets, routed with 1,547 tracks and 457 vias.
It is built around the STM32L072CBT6, TMP1075D and TXU0101, with the CSD16415Q5T, CMDSH-3 and BSS138 among its other parts. Its parts include 104 capacitors, 43 resistors, 18 ICs, 6 diodes and 6 connectors. It belongs with the STM32 boards of this library.
Main components
8
STM32L072CBT6
LQFP-48(7x7)-40℃~+85℃ 1.65V~3.6V 128KB 12bit 12bit 20KB 32 Bit 32MHz 37 6KB ARM Cortex-M0+ Built-in FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
TMP1075D
SOIC-8-55℃~+125℃ 1.7V~5.5V 12bit 3.5uA 7ms Factory temperature calibration、Temperature threshold monitoring I2C、SMBus ±1℃ SOIC-8 Temperature Sensors ROHSTexas InstrumentsTemperature SensorsTXU0101
UncategorisedTexas Instruments
CSD16415Q5T
VSON-CLIP-8(6x5)-55℃~+150℃ 0.99mΩ@10V 1 N-channel 1.5V 100A 21nC@4.5V 230pF 25V 3.2W 3.3nF 4.1nF N-Channel VSON-CLIP-8(6x5) MOSFETs ROHSTexas InstrumentsMOSFETs
CMDSH-3
SOD-32330V Surface Mount Silicon Schottky DiodeCentral SemiconductorUncategorised
BSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETs
PMEG4030EP,115-JSM
SOD-128-55℃~+150℃ 1 Independent 100uA@60V 3A 50A 60V 700mV@2A SOD-128 Schottky Diodes ROHSJSMSEMISchottky Diodes
SMBJ12A
SMB-65℃~+150℃ 12V 14.7V 19.9V 1uA 30.2A 390pF 600W@10/1000us TVS SMB ESD and Surge Protection (TVS/ESD) ROHS晶导微电子ESD And Surge Protection (TVS/ESD)
README
README.mdNerdQ Hardware Repository
This repository contains multiple generations of small-scale Bitcoin miner hardware designs.
NerdQAxe++
Current high-performance design based on 4× BM1370 ASICs.
- ~4.8 TH/s at ~76 W (~15.8 J/TH)
- Previous stable version (that was used for most NQ++): rev5.1
- Latest: rev5.1.2*
*: contains some improvements but is untested yet.
NerdQAxe+
Design based on 4x BM1368 ASICs.
- ~2.5TH/s at ~55 W (~22 J/TH)
- Latest revision 5.0
Firmware for NQ+ and NQ++
The latest version can be found here:
https://github.com/shufps/ESP-Miner-NerdQAxePlus
Legacy Designs
The following designs are end of life and no longer supported:
- QAxe+
- QAxe
They are provided for reference, documentation, and historical reasons only.
No support, fixes, or updates will be provided for legacy designs.
See legacy/README.md for full documentation of deprecated hardware.
Compatible Replacement Parts
For NerdQAxe++
- 25 MHz Oscillator Original: IQD LFSPXO076024 Replacement: Taitien OXLTDLJANF-25.000000
For NerdQAxe++ and NerdQAxe+
- 0.8 V LDO Original: Microchip MCP1824T-0802E-OT Replacement: TI TPS78408QDBVRQ1
Parts
211| Qty | Value | Footprint | References |
|---|---|---|---|
| 48 | 1µ | Capacitor_SMD:C_0805_2012Metric | C20, C24, C28, C30, C32, C33, C34, C35, C36, C37, C38, C40, C41, C42, C43, C44 +32 |
| 26 | 100n | Capacitor_SMD:C_0805_2012Metric | C2, C4, C6, C7, C18, C22, C25, C49, C53, C55, C59, C100, C101, C102, C103, C104 +10 |
| 12 | 10k | Resistor_SMD:R_0805_2012Metric | R1, R19, R20, R21, R22, R23, R24, R25, R28, R29, R31, R43 |
| 6 | 100µ/6.3V | Capacitor_SMD:C_1210_3225Metric | C10, C11, C12, C13, C15, C17 |
| 5 | 22µ/25V | Capacitor_SMD:C_1210_3225Metric | C14, C16, C91, C92, C105 |
| 4 | 10µ/16V | Capacitor_SMD:C_0805_2012Metric | C26, C27, C29, C31 |
| 4 | 200 | Resistor_SMD:R_0805_2012Metric | R8, R9, R10, R11 |
| 4 | 560 | Resistor_SMD:R_0805_2012Metric | R35, R36, R38, R39 |
| 4 | BM1366_mode1 | qaxe:BM1366 | U19, U20, U25, U26 |
| 4 | CSD16415Q5T | Package_SON:VSONP-8-1EP_5x6_P1.27mm | Q3, Q4, Q5, Q6 |
| 4 | NetTie_2 | NetTie:NetTie-2_SMD_Pad0.5mm | NT1, NT2, NT3, NT4 |
| 4 | TXU0101 | Package_TO_SOT_SMD:SOT-363_SC-70-6 | U29, U37, U38, U39 |
| 3 | 1.5k | Resistor_SMD:R_0805_2012Metric | R2, R32, R34 |
| 3 | 330µ/6.3V | Capacitor_Tantalum_SMD:CP_EIA-7343-15_Kemet-W | C39, C45, C48 |
| 3 | 3V3 | TestPoint:TestPoint_Pad_2.0x2.0mm | TP1, TP14, TP15 |
| 2 | 10 | Resistor_SMD:R_0805_2012Metric | R14, R15 |
| 2 | 100k | Resistor_SMD:R_0805_2012Metric | R5, R30 |
| 2 | 10µF/50V | Capacitor_SMD:C_1206_3216Metric | C19, C98 |
| 2 | 1mR | Resistor_SMD:R_2010_5025Metric | R12, R13 |
| 2 | 1n | Capacitor_SMD:C_0805_2012Metric | C5, C8 |
| 2 | 2.7k | Resistor_SMD:R_0805_2012Metric | R33, R41 |
| 2 | 22 | Resistor_SMD:R_0805_2012Metric | R26, R27 |
| 2 | 220nH | myfootprints:IFLR-4031GC-01-8x10 | L1, L2 |
| 2 | 22µ/16V | Capacitor_SMD:C_1206_3216Metric | C23, C97 |
| 2 | 5.1k | Resistor_SMD:R_0805_2012Metric | R40, R42 |
| 2 | CMDSH-3 | Diode_SMD:D_SOD-323 | D2, D3 |
| 2 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J4, J5 |
| 2 | Fan_4pin | Connector:FanPinHeader_1x04_P2.54mm_Vertical | M1, M2 |
| 2 | LED | LED_SMD:LED_1206_3216Metric | D5, D6 |
| 2 | TMP1075 | myfootprints:TMP1075-DRL | U32, U33 |
| 1 | 0 | Resistor_SMD:R_1210_3225Metric | R18 |
| 1 | 10n/250V | Capacitor_SMD:C_0805_2012Metric | C21 |
| 1 | 1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U36 |
| 1 | 16.3k | Resistor_SMD:R_0805_2012Metric | R17 |
| 1 | 2.2R | Resistor_SMD:R_1206_3216Metric | R3 |
| 1 | 20k | Resistor_SMD:R_0805_2012Metric | R7 |
| 1 | 220µ/25V | Capacitor_SMD:CP_Elec_8x10 | C95 |
| 1 | 22k | Resistor_SMD:R_0805_2012Metric | R6 |
| 1 | 25MHz | Oscillator:Oscillator_SMD_EuroQuartz_XO32-4Pin_3.2x2.5mm | U8 |
| 1 | 3.3n | Capacitor_SMD:C_0805_2012Metric | C3 |
| 1 | 4.7µ/25V | Capacitor_SMD:C_0805_2012Metric | C9 |
| 1 | 4.7µ/6.3V | Capacitor_SMD:C_1206_3216Metric | C106 |
| 1 | 4.7µH/2A/3A | Inductor_SMD:L_Taiyo-Yuden_NR-50xx | L3 |
| 1 | 47p | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 49.9k | Resistor_SMD:R_0805_2012Metric | R37 |
| 1 | 5A | myfootprints:fuseholder_littlefuse_blok | F1 |
| 1 | 8.45k | Resistor_SMD:R_0805_2012Metric | R4 |
| 1 | 84.5k | Resistor_SMD:R_0805_2012Metric | R16 |
| 1 | 8MHz | Oscillator:Oscillator_SMD_EuroQuartz_XO32-4Pin_3.2x2.5mm | X1 |
| 1 | AP3211 | Package_TO_SOT_SMD:SOT-23-6 | U6 |
| 1 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q7 |
| 1 | Barrel_Jack_Switch | Connector_BarrelJack:BarrelJack_CUI_PJ-102AH_Horizontal | J1 |
| 1 | Conn_01x06 | Connector_PinHeader_1.27mm:PinHeader_1x06_P1.27mm_Vertical | J2 |
| 1 | LOGO | qaxe:qaxelogo | G*** |
| 1 | LTC3856 | Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm_ThermalVias | U3 |
| 1 | MCP1824T-0802E | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | MCP1824T-1802E | Package_TO_SOT_SMD:SOT-23-5 | U7 |
| 1 | NetTie_2 | myfootprints:NetTie-2_L3_SMD_Pad0.5mm | NT7 |
| 1 | PMEG4030EP,115 | Diode_SMD:D_SOD-128 | D4 |
| 1 | SMBJ12A | Diode_SMD:D_SMB | D1 |
| 1 | STM32L072CBT6 | Package_QFP:LQFP-48_7x7mm_P0.5mm | U35 |
| 1 | SWD | myfootprints:PinHeader_IDC_2x05_P1.27mm_Vertical_SMD | J3 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J6 |
| 1 | boot | Button_Switch_SMD:SW_Push_1P1T_NO_CK_KMR2 | SW1 |
| 1 | ~ | qaxe:polarity | U1 |
The 199 most common of 211 parts.
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Questions
How big is the Qaxe PCB?
It measures 89 × 137 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Qaxe use?
211 parts, built around the STM32L072CBT6, TMP1075D, TXU0101 and CSD16415Q5T. 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 Qaxe KiCad files?
From the shufps/qaxe repository on GitHub, at the commit this page was made from: the board is legacy/qaxe/qaxe/qaxe.kicad_pcb and its schematic legacy/qaxe+/qaxe/bm1366.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Qaxe design in my own project?
Its repository publishes it under the CERN-OHL-S-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).