2 layers44.5 × 35.7 mm
2 layers76.2 × 38.1 mm
WgcMax17Uart0805
RetiredBill/Max17841UartPCBSmall printed circuit board based on Maxim MAX17841B chip for talking to MAX17843 chip based designs
- Size
- 76.2 × 38.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 128
- Nets
- 26
- Pads
- 197
- Tracks, vias
- 291, 17
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 11 Sep 2025
- Updated
- 11 Sep 2025
Overview
WgcMax17Uart0805 is an open-source printed circuit board by RetiredBill, from the RetiredBill/Max17841UartPCB repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 2-layer board of 76.2 × 38.1 mm with 128 parts on 26 nets, routed with 291 tracks and 17 vias.
It is built around the PESD5V0L, CEP99-102 and SZNUP2105L. Its parts include 12 capacitors, 9 resistors, 8 diodes, 2 connectors and 2 inductors.
Main components
3
PESD5V0L
DFN1006-2-55℃~+125℃ 1 100W@8/20us 13V 18pF 200nA 5V 8A@8/20us 8V Bidirectional ESD IEC 61000-4-2、IEC 61000-4-5 DFN1006-2 ESD and Surge Protection (TVS/ESD) ROHSApplied PowerESD Protection DevicesCEP99-102
SMD-8PUncategorisedSumida
SZNUP2105L
SOT-23100nA 2 24V 30pF 32V 350W@8/20us 44V 8A@8/20us Bidirectional ESD IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 SOT-23 ESD and Surge Protection (TVS/ESD) ROHSonsemiESD And Surge Protection (TVS/ESD)
README
README.mdMax17841UartPCB
This is a small printed circuit assembly (PCA) based on the Maxim MAX17841B chip, designed for talking to MAX17843 chip based Battery Management System (BMS) designs.
It provides an SPI interface, operates at +5VDC, and was intended for connection to an Arduino.
See the "datasheets" directory for information about the MAX17841B chip.
Parts
128| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | TestPoint | TestPoint:TestPoint_Keystone_5015_Micro-Minature | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8 |
| 7 | PESD5V | Diode_SMD:D_SOD-323_HandSoldering | D2, D3, D4, D5, D6, D7, D8 |
| 4 | 2200pf | Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C10, C11, C12, C13 |
| 3 | 100k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R3, R4, R18 |
| 2 | 0.1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C6, C8 |
| 2 | 1000pf | Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C24, C25 |
| 2 | 15pF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C2, C3 |
| 2 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C7 |
| 2 | 47 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R5, R6 |
| 2 | 470 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R2 |
| 2 | CEP99-102 | wgcGlobal:CEP99102 | L1, L2 |
| 1 | 100 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R7 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R8 |
| 1 | Conn_01x04_Male | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MPT-0,5-4-2.54_1x04_P2.54mm_Horizontal | P1 |
| 1 | Conn_01x08_Male | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J1 |
| 1 | MAX17841BGUE_V+T | wgcGlobal:MAX17841BGUE&slash_V&plus_T | U1 |
| 1 | SZNUP2105L | Package_TO_SOT_SMD:SOT-23 | D1 |
The 42 most common of 128 parts.
Questions
How big is the WgcMax17Uart0805 PCB?
It measures 76.2 × 38.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the WgcMax17Uart0805 use?
128 parts, built around the PESD5V0L, CEP99-102 and SZNUP2105L. 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 WgcMax17Uart0805 KiCad files?
From the RetiredBill/Max17841UartPCB repository on GitHub, at the commit this page was made from: the board is kicad_wgcMax17Uart0805/wgcMax17Uart0805.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the WgcMax17Uart0805 design in my own project?
Its repository publishes it under the CC-BY-SA-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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