6 layers
6 layers130 × 83 mm
- Size
- 130 × 83 mm
- Copper layers
- 6
- Thickness
- 1.6 mm
- Parts
- 79
- Nets
- 104
- Pads
- 329
- Tracks, vias
- 306, 45
- Pours
- 9
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 30 Jan 2025
- Updated
- 3 Apr 2026
Overview
SMU is an open-source printed circuit board by oosan1, from the oosan1/OriginalSMU_KKHS repository on GitHub. It is a 6-layer board of 130 × 83 mm with 79 parts on 104 nets, routed with 306 tracks and 45 vias.
It is built around the OP07 and MCP4922-E/P. Its parts include 28 resistors, 17 ICs, 13 capacitors, 8 diodes and 4 connectors. It belongs with the RP2040 boards of this library.
Main components
2
OP07
SOP-8-20℃~+85℃ -22V~-3V、3V~22V 1 1.8nA 1.8uV/℃ 10nV/√Hz@1kHz 120dB 15pA/℃ 170V/ms 2.7mA 22V 500kHz 60uV 800pA SOP-8 Operational Amplifier ROHSSlkorOperational Amplifier
MCP4922-E/P
PDIP-14-40℃~+125℃ 0.25LSB、4LSB 12 2 2.7V~5.5V 350uA 4.5us Power-on reset、Power-down mode、Programmable gain SPI Voltage Buffer PDIP-14 Digital to Analog Converters (DAC) ROHSMicrochip TechnologyDigital To Analog Converters (DAC)
README
README.mdOriginalSMU_KKHS
Parts
79| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 10k | Resistor_SMD:R_0603_1608Metric | R3, R4, R5, R8, R9, R12, R14, R15, R16, R17, R18, R21, R22, R25, R27, R28 |
| 8 | 4.7u | Capacitor_SMD:C_1206_3216Metric | C6, C7, C8, C9, C10, C11, C12, C13 |
| 8 | OP07 | Package_DIP:DIP-8_W7.62mm | U6, U7, U8, U11, U12, U13, U14, U17 |
| 6 | D | Diode_THT:D_DO-34_SOD68_P7.62mm_Horizontal | D2, D3, D4, D6, D7, D8 |
| 4 | 20k | Resistor_SMD:R_0603_1608Metric | R10, R11, R23, R24 |
| 4 | Conn_Coaxial | Connector_Coaxial:BNC_Amphenol_B6252HB-NPP3G-50_Horizontal | J1, J2, J3, J4 |
| 4 | SW_SPDT | Button_Switch_THT:SW_Slide-03_Wuerth-WS-SLTV_10x2.5x6.4_P2.54mm | SW1, SW2, SW3, SW4 |
| 4 | TLP241AF | footprints:DIP4_TOS | U9, U10, U15, U16 |
| 3 | 1k | Resistor_SMD:R_0603_1608Metric | R2, R6, R19 |
| 3 | 2.2u | Capacitor_SMD:C_0603_1608Metric | C3, C4, C5 |
| 2 | 100 | Resistor_SMD:R_0603_1608Metric | R7, R20 |
| 2 | 100u | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C1, C2 |
| 2 | 30k | Resistor_SMD:R_0603_1608Metric | R13, R26 |
| 2 | LM4040DBZ-3 | Package_TO_SOT_SMD:SOT-23 | U2, U3 |
| 2 | ZeD | Diode_THT:D_DO-34_SOD68_P7.62mm_Horizontal | D1, D5 |
| 1 | 200 | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | MCP1501-20xCH | Package_TO_SOT_SMD:SOT-23-6 | U4 |
| 1 | MCP4922 | Package_DIP:DIP-14_W7.62mm | U5 |
| 1 | RaspberryPi_Pico | Module:RaspberryPi_Pico_Common_Unspecified | A1 |
| 1 | TPS65131_kit | TPS65131:TPS65131_kit | U1 |
The 75 most common of 79 parts.
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Questions
How big is the SMU PCB?
It measures 130 × 83 mm and has 6 copper layers, 1.6 mm thick.
What parts does the SMU use?
79 parts, built around the OP07 and MCP4922-E/P. 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 SMU KiCad files?
From the oosan1/OriginalSMU_KKHS repository on GitHub, at the commit this page was made from: the board is Circuit/old/PrintedCircuit2/SMU2/SMU.kicad_pcb and its schematic Circuit/PrintedCircuit3/Inverting.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SMU design in my own project?
Its repository states no licence, so its author keeps all rights: ask oosan1 before reusing the design.