2 layers256.5 × 172.9 mm
2 layers55 × 135.3 mm
MSG25
ZeniteSolar/MSG25Módulo de sensoriamento geral para medição de 4 tensões e 3 temperaturas
- Size
- 55 × 135.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 131
- Nets
- 104
- Pads
- 386
- Tracks, vias
- 820, 64
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 9 May 2025
- Updated
- 30 May 2025
Overview
MSG25 is an open-source printed circuit board by ZeniteSolar, from the ZeniteSolar/MSG25 repository on GitHub. It is a 2-layer board of 55 × 135.3 mm with 131 parts on 104 nets, routed with 820 tracks and 64 vias.
It is built around the LM358, AMS1117-3.3 and LM7805, with the LL4148, RJ45 and PESD1CAN among its other parts. Its parts include 46 resistors, 40 capacitors, 11 ICs, 10 diodes and 6 connectors. It belongs with the STM32 boards of this library.
Main components
6
LM358
SOP-8-18V~18V 0℃~+70℃ 1.2MHz 10nA 2 24mA 3V~36V 500uA 50nA 5mV 80dB Built-in compensation SOP-8 Operational Amplifier ROHSMSKSEMIOperational Amplifier
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
LM7805
TO-2630℃~+125℃ 1 1A 20V 2V 42uV 5V 62dB@(120Hz) 8mA Fixed Over Temperature Protection、Short Circuit Protection Positive TO-263 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSYONGYUTAIVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
LL4148
LL-341 Independent 1V@10mA 200mA 4A 4ns 500mW 5uA@75V 75V LL-34 Switching Diodes ROHSMDDSwitching Diodes
RJ45
TH-12PTH-12P SMT ROHSJLCPCB AssemblyUncategorised
PESD1CAN
SOT-23-65℃~+150℃ 11pF 1nA 2 200W@8/20us 24V 30.3V 3A@8/20us 70V Bidirectional ESD IEC 61000-4-2、IEC 61000-4-5 SOT-23 ESD and Surge Protection (TVS/ESD) ROHSNexperiaESD And Surge Protection (TVS/ESD)
README
README.mdMSG25
Módulo de sensoriamento geral para medição de 4 tensões e 3 temperaturas
Parts
131| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R9, R11, R14, R23, R24, R25, R26, R27, R28, R29, R30, R31, R32, R33, R34 |
| 12 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C6, C7, C8, C9, C10, C11, C12, C13, C14, C15, C16 |
| 8 | 100k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R3, R5, R7, R16, R17, R19, R21 |
| 8 | 100n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C101, C119, C121, C124, C126, C128, C129, C131 |
| 7 | 3V3 | Diode_SMD:D_MiniMELF | D3, D4, D5, D6, D7, D8, D9 |
| 7 | Conn_01x02 | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | -Temp1+1, -Temp2+1, -Temp3+1, +Banco1-1, Cell1, Cell2, Cell3 |
| 6 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C20, C21, C22, C23, C24, C25 |
| 6 | 15k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R4, R6, R12, R18, R20 |
| 6 | LM358 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1, U2, U3, U4, U5, U6 |
| 4 | 4.7u | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C117, C122, C127, C130 |
| 4 | 4k7 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R35, R36, R37, R38 |
| 3 | 50V 100nF 0805 | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C205, C206, C207 |
| 3 | 50V 100nF X7R ±10% 0402 | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C208, C209, C210 |
| 2 | 10kR 0805 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R202, R203 |
| 2 | 470k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R10, R13 |
| 2 | 520 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R127, R128 |
| 2 | 5k6 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8, R22 |
| 2 | LL4148 | Diode_SMD:D_MiniMELF | D108, D109 |
| 2 | RJ45 | KicadZeniteSolarLibrary18:RJ45_YH59_01 | J105, J106 |
| 2 | SYM_LASER_Small | KicadZeniteSolarLibrary18:synbol_logoifsc | SYM104, SYM105 |
| 2 | SYM_Radioactive_Radiation_Small | KicadZeniteSolarLibrary18:symbol_logoZenite | SYM101, SYM102 |
| 1 | 25V 10uF X5R ±10% 0805 | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C212 |
| 1 | 270k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R15 |
| 1 | 300 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R126 |
| 1 | 4.7n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C132 |
| 1 | 4k7 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R124 |
| 1 | 50V 10nF X7R ±10% 0402 | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C211 |
| 1 | 50V 1uF X7R ±10% 0805 | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C213 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U106 |
| 1 | BOOT0 | Resistor_SMD:R_0402_1005Metric | R201 |
| 1 | Fuse | Fuse:Fuse_1812_4532Metric_Pad1.30x3.40mm_HandSolder | F101 |
| 1 | I2C_1 | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Horizontal | J8 |
| 1 | I2C_2 | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Horizontal | J9 |
| 1 | K78L15-1000R3 | Package_TO_SOT_THT:TO-220-3_Horizontal_TabDown | U103 |
| 1 | LM7805 | Package_TO_SOT_THT:TO-220-3_Horizontal_TabDown | U502 |
| 1 | Logo_Open_Hardware_Small | Symbol:OSHW-Logo2_7.3x6mm_SilkScreen | LOGO101 |
| 1 | MCP2561-E-SN | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U501 |
| 1 | Mount_BL | MountingHole:MountingHole_3.2mm_M3 | H103 |
| 1 | Mount_BR | MountingHole:MountingHole_3.2mm_M3 | H104 |
| 1 | Mount_TL | MountingHole:MountingHole_3.2mm_M3 | H101 |
| 1 | Mount_TR | MountingHole:MountingHole_3.2mm_M3 | H102 |
| 1 | NC | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R125 |
| 1 | STLink | Connector_PinSocket_2.54mm:PinSocket_1x05_P2.54mm_Vertical | J102 |
| 1 | STM32L431RCTx | Package_QFP:LQFP-64_10x10mm_P0.5mm | U202 |
| 1 | SYM_Radioactive_Radiation_Small | KicadZeniteSolarLibrary18:symbol_naolavar | SYM103 |
| 1 | USART | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Horizontal | J101 |
| 1 | pesd1can | Package_TO_SOT_SMD:SOT-23 | D107 |
Questions
How big is the MSG25 PCB?
It measures 55 × 135.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MSG25 use?
131 parts, built around the LM358, AMS1117-3.3, LM7805 and LL4148. 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 MSG25 KiCad files?
From the ZeniteSolar/MSG25 repository on GitHub, at the commit this page was made from: the board is hardware/MSG25.kicad_pcb and its schematic hardware/MCU.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MSG25 design in my own project?
Its repository states no licence, so its author keeps all rights: ask ZeniteSolar before reusing the design.
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