2 layers100 × 100 mm Schematic MD, the printed circuit board in 3D

Schematic MD

Size: 100 × 100 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 195
Nets: 164
Pads: 863
Tracks, vias: 1,322, 748
Pours: 33
Routed: Yes
KiCad: KiCad 7 (file 20221018)
Created: 20 May 2025
Updated: 20 May 2025

Overview

Schematic MD is an open-source printed circuit board by SurugaElectric, from the SurugaElectric/md_pcb repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 2-layer board of 100 × 100 mm with 195 parts on 164 nets, routed with 1,322 tracks and 748 vias.

It is built around the UCC21520DW, TPS5430DDA and 74HC04D, with the MAX3051EKA, XC6206P332MR-G and SQJ886EP-T1_GE3 among its other parts. Its parts include 71 resistors, 61 capacitors, 20 diodes, 10 ICs and 10 connectors. It belongs with the STM32 boards of this library.

Main components

README

README.md

Parts

195

Qty	Value	Footprint	References
23	0.1uF	Capacitor_SMD:C_0402_1005Metric	C1, C2, C4, C13, C18, C21, C22, C23, C24, C25, C28, C29, C30, C35, C36, C37 +7
20	10k	Resistor_SMD:R_0402_1005Metric	R2, R3, R5, R6, R10, R11, R12, R13, R14, R25, R26, R64, R65, R66, R67, R68 +4
15	D_Schottky	Diode_SMD:D_SOD-123F	D6, D7, D8, D9, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20
12	20k	Resistor_SMD:R_0402_1005Metric	R30, R34, R35, R36, R37, R41, R46, R50, R51, R52, R53, R57
8	10	Resistor_SMD:R_0805_2012Metric	R32, R33, R38, R39, R48, R49, R54, R55
8	10uF	Capacitor_SMD:C_1210_3225Metric	C31, C32, C33, C34, C45, C46, C47, C48
8	33pF	Capacitor_SMD:C_0402_1005Metric	C26, C27, C38, C39, C40, C41, C52, C53
8	51	Resistor_SMD:R_0402_1005Metric	R28, R29, R42, R43, R44, R45, R58, R59
8	SQJ886EP-T1_GE3	RDC_footprint:Infineon_PG-TDSON-8_6.15x5.15mm_thermalvia	Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9
6	0	Resistor_SMD:R_0402_1005Metric	R15, R16, R17, R18, R19, R20
4	0.1	Resistor_SMD:R_1206_3216Metric	R31, R40, R47, R56
4	330uF	Capacitor_THT:CP_Radial_D10.0mm_P5.00mm	C9, C10, C11, C12
4	LED	LED_SMD:LED_0603_1608Metric	D1, D2, D3, D4
4	MountingHole_Pad	MountingHole:MountingHole_3.2mm_M3_Pad_Via	H1, H2, H3, H4
4	UCC21520DW	Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm	U4, U5, U6, U7
3	10k	Resistor_SMD:R_1206_3216Metric	R4, R70, R71
3	1uF	Capacitor_SMD:C_0603_1608Metric	C6, C57, C58
2	0.01uF	Capacitor_SMD:C_0603_1608Metric	C55, C60
2	0.1uF	Capacitor_SMD:C_0603_1608Metric	C7, C8
2	10k	Resistor_SMD:R_0603_1608Metric	R23, R24
2	10uF	Capacitor_SMD:C_0805_2012Metric	C54, C59
2	15uH	Inductor_SMD:L_Sunlord_SWPA5040S	L2, L3
2	18pF	Capacitor_SMD:C_0402_1005Metric	C14, C15
2	2.2uF	Capacitor_SMD:C_0603_1608Metric	C16, C17
2	220uF	Capacitor_THT:CP_Radial_D8.0mm_P3.50mm	C56, C61
2	4.7k	Resistor_SMD:R_0603_1608Metric	R21, R22
2	CAN_Bus	Connector_JST:JST_XA_S04B-XASK-1_1x04_P2.50mm_Horizontal	J1, J2
2	SW_Push	RDC_footprint:TVBP06-B043	SW3, SW4
2	TPS5430DDA	Package_SO:TI_SO-PowerPAD-8_ThermalVias	U8, U10
2	XT60	Connector_AMASS:AMASS_XT60PW-F_1x02_P7.20mm_Horizontal	J9, J10
1	1.2k	Resistor_SMD:R_0603_1608Metric	R27
1	120	Resistor_SMD:R_0603_1608Metric	R1
1	12k	Resistor_SMD:R_0402_1005Metric	R60
1	18k	Resistor_SMD:R_0402_1005Metric	R62
1	1uF	Capacitor_SMD:C_0402_1005Metric	C20
1	25MHz	Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm	Y1
1	2k	Resistor_SMD:R_0402_1005Metric	R63
1	3.9k	Resistor_SMD:R_0402_1005Metric	R61
1	4.7uF	Capacitor_SMD:C_0402_1005Metric	C19
1	47uF	Capacitor_THT:CP_Radial_D5.0mm_P2.00mm	C3
1	600@100MHz	Resistor_SMD:R_0805_2012Metric	L1
1	74HC04	Package_SO:SOIC-14_3.9x8.7mm_P1.27mm	U2
1	Conn_02x01	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	J3
1	Conn_02x07_Odd_Even	RDC_footprint:JTAG_box_connector	J5
1	LED	LED_SMD:LED_0805_2012Metric	D5
1	LOGO	RDC_footprint:suruden_logo	G***
1	MAX3051	Package_TO_SOT_SMD:SOT-23-8	U1
1	Micro_SD_Card_Det_Hirose_DM3AT	Connector_Card:microSD_HC_Hirose_DM3D-SF	J4
1	Q_PMOS_GSD	Package_TO_SOT_SMD:SOT-23-3	Q1
1	Rotaly_encoder_1	Connector_JST:JST_XA_S05B-XASK-1_1x05_P2.50mm_Horizontal	J6
1	Rotaly_encoder_2	Connector_JST:JST_XA_S05B-XASK-1_1x05_P2.50mm_Horizontal	J7
1	STM32F405RGTx	Package_QFP:LQFP-64_10x10mm_P0.5mm	U3
1	SW_DIP_x04	Button_Switch_SMD:SW_DIP_SPSTx04_Slide_Copal_CHS-04B_W7.62mm_P1.27mm	SW2
1	SW_SPDT	RDC_footprint:SS-12D	SW1
1	XC6206P332MR-G	Package_TO_SOT_SMD:SOT-23-3	U9
1	XT60	Connector_AMASS:AMASS_XT60PW-M_1x02_P7.20mm_Horizontal	J8

The 194 most common of 195 parts.

Questions

How big is the Schematic MD PCB?

It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Schematic MD use?

195 parts, built around the UCC21520DW, TPS5430DDA, 74HC04D and MAX3051EKA. 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 Schematic MD KiCad files?

From the SurugaElectric/md_pcb repository on GitHub, at the commit this page was made from: the board is schematic_MD.kicad_pcb and its schematic 24-12V_StepDown_DCDC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Schematic MD 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).

Category and platform

STM32

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/surugaelectric-md-pcb" title="Schematic MD in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/surugaelectric-md-pcb.jpg" alt="Schematic MD" width="1200" height="900">

A picture that opens the board, for a README

[![Schematic MD](https://pcbkit.io/embed/boards/surugaelectric-md-pcb.jpg?size=s)](https://pcbkit.io/boards/surugaelectric-md-pcb)

Source

Repository: SurugaElectric/md_pcb
Board file: schematic_MD.kicad_pcb
Commit: 5ece274
Licence: CC-BY-SA-4.0

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