2 layers77.5 × 50.8 mm
2 layers106 × 50 mm
Umc
0x007E/umcMicrocontrolled Motor Control Unit
- Size
- 106 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 140
- Nets
- 109
- Pads
- 429
- Tracks, vias
- 535, 229
- Pours
- 16
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 25 Dec 2025
- Updated
- 25 Dec 2025
Overview
Umc is an open-source printed circuit board by 0x007E, from the 0x007E/umc repository on GitHub. It is a 2-layer board of 106 × 50 mm with 140 parts on 109 nets, routed with 535 tracks and 229 vias.
It is built around the FT232RL, BAT43 and AO3400A, with the SK34A-LTP, IRF540N and IRF9540NS among its other parts. Its parts include 48 resistors, 25 capacitors, 17 diodes, 10 ICs and 10 connectors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
7
FT232RL
SSOP-28-208mil-40℃~+85℃ 3.3V~5.25V、4V~5.25V USB 2.0 USB to UART SSOP-28-208mil USB Converters ROHSFTDIUSB Converters
BAT43
DO-204AH-65℃~+125℃ 1 Independent 1V@0.2A 200mA 30V 4A 500nA@25V DO-204AH Schottky Diodes ROHSSTMicroelectronicsSchottky Diodes
AO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.45V 1.4W 30V 48mΩ@2.5V 5.7A 50pF 630pF 75pF 7nC@10V N-Channel SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
SK34A-LTP
SMA(DO-214AC)-55℃~+125℃ 1 Independent 100uA@40V 3A 40V 500mV@3A 80A SMA(DO-214AC) Schottky Diodes ROHSMicro Commercial ComponentsSchottky Barrier Diodes (SBD)
IRF540N
TO-2201 N-channel 1.35nF 100V 130W 280pF 33A 35mΩ@10V 4V 52nC@10V 85pF N-Channel TO-220 MOSFETs ROHSOSENMOSFETs
IRF9540NS
TO-263MOSFETsMinos
BUK7880-55A-VB
SOT-223-55℃~+150℃ 1 N-channel 100pF 120pF 2.5V 22nC@10V 4.5A 60V 76mΩ@10V、85mΩ@4.5V 810pF N-Channel SOT-223 MOSFETs ROHSVBsemi ElecMOSFETs
Parts
140| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 100n | Capacitor_SMD:C_1206_3216Metric | C2, C3, C4, C5, C6, C7, C9, C10, C11, C22 |
| 10 | 10k | Resistor_SMD:R_1206_3216Metric | R2, R23, R24, R26, R27, R28, R29, R43, R44, R45 |
| 10 | 1k | Resistor_SMD:R_1206_3216Metric | R1, R4, R9, R10, R11, R12, R14, R15, R25, R42 |
| 6 | BAT43 | Diode_SMD:D_MiniMELF | D2, D5, D6, D9, D10, D15 |
| 6 | TestPoint_Probe | TestPoint:TestPoint_Pad_D1.5mm | TP1, TP2, TP4, TP5, TP6, TP7 |
| 6 | n.B. | Capacitor_SMD:C_1206_3216Metric | C12, C13, C14, C15, C16, C17 |
| 4 | 4k7 | Resistor_SMD:R_1206_3216Metric | R19, R20, R21, R22 |
| 4 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q4, Q7, Q8, Q9 |
| 4 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J8, J9, J10, J11 |
| 4 | INA181 | Package_TO_SOT_SMD:SOT-23-6 | U6, U7, U8, U9 |
| 4 | R025 | Resistor_SMD:R_2010_5025Metric | R5, R6, R17, R18 |
| 4 | SK34A-LTP | Diode_SMD:D_SMA | D13, D14, D16, D17 |
| 4 | SW_SPST | Button_Switch_THT:SW_Tactile_SPST_Angled_PTS645Vx83-2LFS | SW1, SW2, SW3, SW4 |
| 3 | 10n | Capacitor_SMD:C_1206_3216Metric | C19, C20, C21 |
| 3 | 300 | Resistor_SMD:R_1206_3216Metric | R32, R35, R36 |
| 3 | 47u | Capacitor_Tantalum_SMD:CP_EIA-6032-28_Kemet-C | C8, C98, C99 |
| 2 | 10u | Capacitor_SMD:C_1206_3216Metric | C18, C38 |
| 2 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R13, R16 |
| 2 | 22k | Resistor_SMD:R_1206_3216Metric | R39, R40 |
| 2 | 27 | Resistor_SMD:R_0603_1608Metric | R33, R34 |
| 2 | 390 | Resistor_SMD:R_1206_3216Metric | R7, R8 |
| 2 | 4001 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U2, U3 |
| 2 | 5k1 | Resistor_SMD:R_0603_1608Metric | R47, R48 |
| 2 | BAT43 | Diode_THT:D_DO-35_SOD27_P10.16mm_Horizontal | D7, D8 |
| 2 | Conn_01x01_Socket | Connector_Faston:CONN_QC_RCPT_0.250 | J3, J4 |
| 2 | IRF540N | Package_TO_SOT_THT:TO-220-3_Vertical | Q5, Q6 |
| 2 | IRF9540N | Package_TO_SOT_THT:TO-220-3_Vertical | Q2, Q3 |
| 1 | 10u | Capacitor_Tantalum_SMD:CP_EIA-6032-28_Kemet-C | C1 |
| 1 | 10u | Inductor_SMD:L_1206_3216Metric | L2 |
| 1 | 1N4148 | Diode_SMD:D_MiniMELF | D3 |
| 1 | 1k5 | Resistor_SMD:R_1206_3216Metric | R3 |
| 1 | 1k8 | Resistor_SMD:R_1206_3216Metric | R31 |
| 1 | 20k | Potentiometer_SMD:Potentiometer_Bourns_3314J_Vertical | RV2 |
| 1 | 22u | Inductor_SMD:L_6.3x6.3_H3 | L1 |
| 1 | 2k2 | Resistor_SMD:R_1206_3216Metric | R46 |
| 1 | 33 | Resistor_SMD:R_1206_3216Metric | R30 |
| 1 | 330k | Resistor_SMD:R_1206_3216Metric | R37 |
| 1 | 4010BEA | Diode_SMD:D_SOD-323_HandSoldering | D1 |
| 1 | 470 | Resistor_SMD:R_1206_3216Metric | R41 |
| 1 | 52k3 | Resistor_SMD:R_1206_3216Metric | R99 |
| 1 | ATmega__08-A | Package_QFP:TQFP-32_7x7mm_P0.8mm | U10 |
| 1 | BIN | Symbol:WEEE-Logo_4.2x6mm_SilkScreen | FID2 |
| 1 | BUK7880-55A | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | Q1 |
| 1 | BZ5V1 | Diode_SMD:D_MiniMELF | D4 |
| 1 | Conn_01x02_Pin | Connector_Wago_SMD:WAGO_2060-402_998-404 | J2 |
| 1 | Conn_02x08_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x08_P2.54mm_Vertical | J6 |
| 1 | ESD | Symbol:ESD-Logo_6.6x6mm_SilkScreen | FID1 |
| 1 | FT232RL | Package_SO:SSOP-28_5.3x10.2mm_P0.65mm | U11 |
| 1 | FerriteBead_Small | Inductor_SMD:L_1206_3216Metric | FB1 |
| 1 | Green | LED_SMD:LED_1206_3216Metric | D12 |
| 1 | MCP16301Hx-xCH | Package_TO_SOT_SMD:SOT-23-6 | U1 |
| 1 | OH | Symbol:OSHW-Logo_5.7x6mm_SilkScreen | FID3 |
| 1 | QR | Images:QR_0x007e | FID4 |
| 1 | Red | LED_SMD:LED_1206_3216Metric | D11 |
| 1 | RotaryEncoder_Switch | Rotary_Encoder:RotaryEncoder_Bourns_Horizontal_PEC09-2xxxF-Sxxxx | SW6 |
| 1 | SW_SPST | Button_Switch_SMD:SW_SPST_PTS645 | SW5 |
| 1 | Screw_01x02 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J1 |
| 1 | T2A | Fuse_HTL:Fuse_20mm_HTL | F1 |
| 1 | TL431LP | Package_TO_SOT_THT:TO-92_Wide | U4 |
| 1 | USB_C | Connector_USB:USB_C_Receptacle_GCT_USB4110 | J7 |
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Questions
How big is the Umc PCB?
It measures 106 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Umc use?
140 parts, built around the FT232RL, BAT43, AO3400A and SK34A-LTP. 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 Umc KiCad files?
From the 0x007E/umc repository on GitHub, at the commit this page was made from: the board is pcb/UMC.kicad_pcb and its schematic pcb/UMC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Umc design in my own project?
Its repository states no licence, so its author keeps all rights: ask 0x007E before reusing the design.