2 layers132.8 × 93 mm
2 layers
SDDBias
BarceP/SDDBias- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 90
- Nets
- 64
- Pads
- 234
- Tracks, vias
- 122, 0
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 9 May 2026
- Updated
- 11 Jul 2026
Overview
SDDBias is an open-source printed circuit board by BarceP, from the BarceP/SDDBias repository on GitHub, published under the CERN-OHL-W-2.0 licence. It is a 2-layer board with 90 parts on 64 nets, routed with 122 tracks and 0 vias.
It is built around the UCC27524DGN, 74LVC2G00GT and LM1117MP-3.3, with the RB751S-40 among its other parts. Its parts include 28 resistors, 20 capacitors, 20 diodes, 12 transistors and 4 ICs.
Main components
4
UCC27524DGN
HVSSOP-8-EP-0.65mm-40℃~+140℃ 1.9V~2.3V 1V~1.4V 2 4.5V~18V 5A 5A 6ns 7ns IGBT、MOSFET Low Side Under Voltage Protection HVSSOP-8-EP-0.65mm Gate Drivers ROHSTexas InstrumentsGate Drivers
74LVC2G00GT
XSON-8(1x2)-40℃~+125℃ 1.65V~5.5V 1.7V~2V 2 2 3.3ns@5V,50pF 32mA 32mA 4uA 700mV~800mV 74LVC Series NAND Gate XSON-8(1x2) Logic Gates ROHSNexperiaLogic Gates
LM1117MP-3.3
SOT-2230℃~+125℃@(Ta) 1 1.2V@(800mA) 15V 3.3V 5mA 75dB@(120Hz) 800mA 99uVrms Fixed Over Current Protection、Over Temperature Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
RB751S-40
SOD-5231 Independent 200mA 30mA 370mV@1mA 40V 500nA@30V SOD-523 Schottky Diodes ROHSJiangsu Changjing Electronics Technology (CJ)Schottky Diodes
README
README.mdSDDBias
Parts
90| Qty | Value | Footprint | References |
|---|---|---|---|
| 20 | RB751S-40 | Diode_SMD:D_SOD-523 | D1, D2, D3, D4, D5, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20 +4 |
| 18 | R | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R7, R10, R11, R13, R17, R18, R19, R20, R24, R25, R26, R27, R28 +2 |
| 17 | 1u | Capacitor_SMD:C_0603_1608Metric | C2, C3, C4, C5, C6, C8, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20 +1 |
| 10 | 1M | Resistor_SMD:R_0603_1608Metric | R4, R5, R6, R12, R14, R15, R16, R21, R22, R23 |
| 8 | PMOS | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q5, Q7, Q8, Q10, Q11 |
| 4 | 1M | Potentiometer_THT:Potentiometer_Bourns_3296Y_Vertical | RV1, RV2, RV3, RV4 |
| 4 | NMOS | Package_TO_SOT_SMD:SOT-23 | Q4, Q6, Q9, Q12 |
| 3 | 100n | Capacitor_SMD:C_0603_1608Metric | C1, C7, C10 |
| 2 | Conn_01x08 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J1, J2 |
| 1 | 74LVC2G00 | Package_SO:SSOP-8_2.95x2.8mm_P0.65mm | U3 |
| 1 | LM1117MP-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | Opamp_Quad | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U1 |
| 1 | UCC27524DGN | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U4 |
Similar boards
- 2 layers50 × 25 mm
ADS1235EVM
Iam-JB/LAAS-ForceFrontEnd
Electronics development to acquire and process force measurements produced by an actuator in order to achieve torque control.
73 parts - 6 layers160 × 136 mm
Serie
npgo22/Serie
The board itself is based around an STM32H723, the fastest microcontroller supported by Klipper at the moment.
549 parts - 4 layers61.2 × 61.2 mm
Ganglion 01
OpenBCI/Ganglion_Hardware_Design_Files
General repo for Ganglion hardware files
141 parts91 - 2 layers35.6 × 17.8 mm
FlexROM 200 M13
bkw777/aDIPters
PCBs to plug various newer SMT parts into vintage DIP sockets. Generaly to use a newer PLCC, SOIC, or TSOP EEPROM or Flash part to replace a DIP mask ROM or UV EPROM in a vintage computer.
9 parts32CC-BY-SA-4.0 - 4 layers91.4 × 54.6 mm
StepperDriver Shield FRDM MCXA153
Fi-schi/StepperDriver-Shield_FRDM-MCXA153
StepperDriver Shielf for the NXP FRDM-MCXA153 Board..
72 parts1 - 2 layers47.4 × 39.8 mm
- 4 layers45 × 35 mm
Questions
What parts does the SDDBias use?
90 parts, built around the UCC27524DGN, 74LVC2G00GT, LM1117MP-3.3 and RB751S-40. 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 SDDBias KiCad files?
From the BarceP/SDDBias repository on GitHub, at the commit this page was made from: the board is SDDBias.kicad_pcb and its schematic HV_PSU.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SDDBias design in my own project?
Its repository publishes it under the CERN-OHL-W-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).