2 layers151.1 × 87.6 mm
11 layers44.6 × 31.6 mm
Notecarrier Micro
Safecast/bGeigieZen24bGiegieZen an Open Source Geiger Counter.
- Size
- 44.6 × 31.6 mm
- Copper layers
- 11
- Thickness
- 1.57 mm
- Parts
- 33
- Nets
- 65
- Pads
- 149
- Tracks, vias
- 343, 24
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.99 (file 20240706)
- Created
- 1 Dec 2018
- Updated
- 7 Nov 2026
Overview
Notecarrier Micro is an open-source printed circuit board by Safecast, from the Safecast/bGeigieZen repository on GitHub. It is an 11-layer board of 44.6 × 31.6 mm with 33 parts on 65 nets, routed with 343 tracks and 24 vias.
It is built around the MAX17225ELT+T, TPS62748YFPT and 1285AS-H-2R2M=P2, with the AO3420, MDT420E01001 and F930J227KBA among its other parts. Its parts include 12 capacitors, 9 resistors, 2 ICs, 2 connectors and 2 inductors. It belongs with the sensors and measurement boards of this library.
Main components
9
MAX17225ELT+T
UDFN-6(2x2)-40℃~+85℃ 1 1.8V~5V 1A 2.5MHz 300nA 400mV~5.5V Adjustable Boost Boost Built-in Yes UDFN-6(2x2) DC-DC Converters ROHSMaxim Integrated (Analog Devices)DC-DC Converters
TPS62748YFPT
DSBGA-8-40℃~+125℃@(TJ) 1 1.2MHz 1.2V、1.8V 2.15V~5.5V 300mA 360nA Adjustable Buck Buck Built-in Yes DSBGA-8 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
1285AS-H-2R2M=P2
08061.5A 1.5A 2.2uH 204mΩ ±20% 0806 Power Inductors ROHSMurataPower Inductors
AO3420
SOT-23MOSFETsTWGMC
MDT420E01001
SMD,P=0.5mm,卧贴-40℃~+80℃ 0.5mm 4.2mm 50V 67P Copper alloy Gold Surface Mount, Right Angle SMD,P=0.5mm,Surface Mount，Right Angle PCI / PCIe Connector ROHSAmphenolEdgeboard Connectors
F930J227KBA
1411-55℃~+125℃ 1.2Ω@100kHz 220uF 6.3V ±10% 1411 Tantalum Capacitors ROHSKyocera AVXTantalum Capacitors
F930J107KAA
1206-55℃~+125℃ 100uF 2Ω@100kHz 6.3V ±10% 1206 Tantalum Capacitors ROHSKyocera AVXTantalum Capacitors
SF-0603F150-2
0603-20℃~+105℃ 0.037 0.8mm 1.5A 1.6mm 32V 50A Surface Mount Fuse 0603 Disposable fuses ROHSBournsDisposable Fuses
XFL4020-222MEC
SMD,4x4mm2.2uH 21.35mΩ 3.7A 8A ±20% SMD,4x4mm Power Inductors ROHSCoilcraftPower Inductors
README
Misc documents and software/3d models/Notecarrier-Mirco/Notecarrier-Micro/README.mdNotecarrier-B
This folder contains the design files for the Blues Wireless Notcarrier-B, in KiCad 7 format. They were generated by porting the original OrCad design files. For a detailed description of the porting process, see PortingNotes.
Components in this design are sourced from the blues-kicad-lib library. However, with the exception of 3D models, KiCad produces self-contained project files. Thus this project can still be used without access to the library.
Contents
- This file
README.md
- KiCad source files
Notecarrier-B.kicad_pcbNotecarrier-B.kicad_prlNotecarrier-B.kicad_proNotecarrier-B.kicad_schNotecarrier-B.kicad_wkssym-lib-tablefp-info-cachefp-lib-table
- Documentation
documentation/*
- Manufacturing artefacts
manufacturing/*
- Design references
reference/*
- Validation artefacts
validation/*
Revision History
| Revision | Date | Author | Description |
|---|---|---|---|
| A | 2023-03-31 | H.Raftery | initial port from OrCAD design files, rev 14 (v2.1). |
Original OrCad Design File Revision History
| Revision | Date | Author | Description |
|---|---|---|---|
| 12 | 25/08/2020 | G.Boschini | - Changed screw with inox version - Changed pullup resistor of EN pin to 10M |
| 14 | 25/08/2020 | M. Gregis | - Added LiPO charger - Changed V+ to VBAT - removed BOOT signal from J21 header and replaced with GND - removed AUX5 from J22 header and replaced with VMODEM |
Parts
33| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 100n/16V | blues-kicad-lib:CS-C-0402_NO-FILL | C7, C10, C115, C116 |
| 3 | 0R | blues-kicad-lib:RS-0402_NO-FILL | R318, R322, R325 |
| 3 | NU | blues-kicad-lib:RS-0402_NO-FILL | R323, R324, R326 |
| 2 | 10u/10V-X5R | blues-kicad-lib:CS-C-0603 | C15, C16 |
| 2 | 10u/6.3V-X5R | blues-kicad-lib:CS-C-0402_NO-FILL | C8, C9 |
| 2 | PinHeader_1x02_P2.54mm_Vertical | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | Extra_pin_1, Extra_pin_2 |
| 1 | 10M/5% | blues-kicad-lib:RS-0402_NO-FILL | R10 |
| 1 | 1285AS-H-2R2M=P2 | blues-kicad-lib:LS-0806 | L2 |
| 1 | 1k | blues-kicad-lib:RS-0402_NO-FILL | R319 |
| 1 | 3.5A/32V | blues-kicad-lib:FS-0603 | F2 |
| 1 | 4.7u/6.3V-X5R | blues-kicad-lib:CS-C-0402_NO-FILL | C14 |
| 1 | 47u/16V-X5R | blues-kicad-lib:CS-C-1206 | C13 |
| 1 | 82k | blues-kicad-lib:RS-0402_NO-FILL | R6 |
| 1 | 9774025151R | blues-kicad-lib:DIST-WASMSIM0250 | OBJ1 |
| 1 | AO3420 | blues-kicad-lib:SOT23_NO-FILL | Q2 |
| 1 | Conn_01x06 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J1 |
| 1 | MAX17225ELT | blues-kicad-lib:WDFN6-0200X0200 | U3 |
| 1 | MDT420E01001 | blues-kicad-lib:J-75-0050-MOS-M2-E | J20 |
| 1 | NU | blues-kicad-lib:CS-T-B | C114 |
| 1 | NU | blues-kicad-lib:CS-T-A | C113 |
| 1 | SF-0603F150-2 | blues-kicad-lib:FS-0603 | F1 |
| 1 | TPS62748YFPT | blues-kicad-lib:XFBGA8 | U4 |
| 1 | XFL4020-222MEC | blues-kicad-lib:LS-XFL4020 | L4 |
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Questions
How big is the Notecarrier Micro PCB?
It measures 44.6 × 31.6 mm and has 11 copper layers, 1.57 mm thick.
What parts does the Notecarrier Micro use?
33 parts, built around the MAX17225ELT+T, TPS62748YFPT, 1285AS-H-2R2M=P2 and AO3420. 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 Notecarrier Micro KiCad files?
From the Safecast/bGeigieZen repository on GitHub, at the commit this page was made from: the board is Misc documents and software/3d models/Notecarrier-Mirco/Notecarrier-Micro/Notecarrier-Micro.kicad_pcb and its schematic Misc documents and software/3d models/Notecarrier-Mirco/Notecarrier-Micro/Notecarrier-Micro.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Notecarrier Micro design in my own project?
Its repository states no licence, so its author keeps all rights: ask Safecast before reusing the design.