2 layers165.1 × 80.6 mm
2 layers
SequentialClamping
Staybq/FP- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 112
- Nets
- 68
- Pads
- 278
- Tracks, vias
- 45, 20
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 22 Apr 2026
- Updated
- 20 Aug 2026
Overview
SequentialClamping is an open-source printed circuit board by Staybq, from the Staybq/FP repository on GitHub. It is a 2-layer board with 112 parts on 68 nets, routed with 45 tracks and 20 vias.
It is built around the 74LVC1G17Z, 74AHC1G14GV and BC817, with the BC807 and IRF9389TRPBF among its other parts. Its parts include 47 resistors, 14 diodes, 9 transistors, 6 capacitors and 6 connectors.
Main components
5
74LVC1G17Z
SOT-553-40℃~+125℃ 1 1 1.65V~5.5V 10uA 32mA 32mA 4.4ns@5V,15pF 74LVC Push-pull Schmitt trigger Unidirectional SOT-553 Buffers, Drivers, Receivers, Transceivers ROHSDiodes IncorporatedBuffers, Drivers, Receivers, Transceivers
74AHC1G14GV
SOT-23-5-40℃~+125℃ 1 1 1.2V~2.2V、1.75V~3.15V、2.15V~3.85V 16.3ns@3.3V,15pF 2V~5.5V 40uA 74AHC 8mA 8mA 900mV~1.9V、1.35V~2.75V、1.65V~3.35V SOT-23-5 Logic Gates ROHSTECH PUBLICLogic Gates
BC817
SOT-231 NPN 100nA 150MHz 300mW 40 45V 500mA 5V 700mV NPN SOT-23 Bipolar (BJT) ROHSShikuesBipolar (BJT)BC807
SOT-23-65℃~+150℃ 1 PNP 100 100nA 345mW 45V 500mA 5V 700mV 80MHz PNP SOT-23 Bipolar (BJT) ROHSNexperiaBipolar (BJT)
IRF9389TRPBF
SOP-8-55℃~+150℃ 1 N-Channel + 1 P-Channel 1.7W 1V 22mΩ@10V 30V 4.8nC@15V 429pF 47pF 59pF、120pF 6A N-Channel + P-Channel SOP-8 MOSFETs ROHSTECH PUBLICMOSFETs
Parts
112| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 100k | Resistor_SMD:R_0805_2012Metric | R3, R4, R5, R6, R12, R13, R22, R27, R30, R31, R33, R40, R44, R45, R46, R47 |
| 16 | 10k | Resistor_SMD:R_0805_2012Metric | R7, R8, R9, R10, R11, R19, R23, R24, R25, R26, R29, R32, R34, R35, R36, R38 |
| 14 | TestPoint | TestPoint:TestPoint_Pad_2.0x2.0mm | TP1, TP2, TP3, TP6, TP7, TP12, TP13, TP14, TP15, TP16, TP17, TP18, TP23, TP24 |
| 10 | TestPoint | TestPoint:TestPoint_Keystone_5005-5009_Compact | TP4, TP5, TP8, TP9, TP10, TP11, TP19, TP20, TP21, TP22 |
| 9 | 10 | Resistor_SMD:R_0805_2012Metric | R14, R15, R16, R17, R20, R21, R28, R42, R43 |
| 6 | 100n | Capacitor_SMD:C_0805_2012Metric | C1, C2, C3, C4, C5, C6 |
| 4 | BC817 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q7, Q9 |
| 3 | BC807 | Package_TO_SOT_SMD:SOT-23 | Q5, Q6, Q8 |
| 3 | D | Package_TO_SOT_SMD:SOT-23-3 | D3, D5, D7 |
| 3 | Z15 | Package_TO_SOT_SMD:SOT-23-3 | D4, D10, D14 |
| 3 | Z5.6 | Package_TO_SOT_SMD:SOT-23-3 | D1, D2, D9 |
| 2 | 1k | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | 7461099 | Connector_Phoenix_MC_HighVoltage:PhoenixContact_MCV_1,5_7-G-5.08_1x07_P5.08mm_Vertical | J5, J6 |
| 2 | 74AHC1G14 | Package_TO_SOT_SMD:SOT-23-5 | U1, U3 |
| 2 | 74LVC1G17 | Package_TO_SOT_SMD:SOT-23-5 | U2, U4 |
| 2 | 824541401 | Diode_SMD:D_SMC | D12, D13 |
| 2 | Conn_A | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J1, J2 |
| 2 | IRF9389TRPBF | Package_SO:SO-8_3.9x4.9mm_P1.27mm | Q3, Q4 |
| 2 | Z27 | Package_TO_SOT_SMD:SOT-23-3 | D6, D8 |
| 1 | 100 | Resistor_SMD:R_0805_2012Metric | R18 |
| 1 | 200u | Resistor_SMD:R_4020_10251Metric_Pad1.65x5.30mm_HandSolder | R41 |
| 1 | 50 | Resistor_SMD:R_0805_2012Metric | R37 |
| 1 | 660 | Resistor_SMD:R_0805_2012Metric | R39 |
| 1 | Conn_02x06_Counter_Clockwise | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Vertical | J3 |
| 1 | Conn_B | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J4 |
| 1 | INA281B2-Q1 | Package_TO_SOT_SMD:SOT-23-5 | U5 |
| 1 | LED gn | LED_SMD:LED_0805_2012Metric | D11 |
| 1 | SLW-2A | Button_Switch_SMD:Nidec_Copal_CAS-120A | SW1 |
Questions
What parts does the SequentialClamping use?
112 parts, built around the 74LVC1G17Z, 74AHC1G14GV, BC817 and BC807. 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 SequentialClamping KiCad files?
From the Staybq/FP repository on GitHub, at the commit this page was made from: the board is Unchanged/Unterlagen_-_Kick_Off_Xiaoyao/SequentialClamping.kicad_pcb and its schematic Unchanged/KiCad_Board_Basti/Fuse.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SequentialClamping design in my own project?
Its repository states no licence, so its author keeps all rights: ask Staybq before reusing the design.
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