2 layers70 × 120.3 mm
2 layers47.5 × 27 mm
Pin interface circuit
ray33ee/DCT- Size
- 47.5 × 27 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 38
- Nets
- 28
- Pads
- 104
- Tracks, vias
- 430, 16
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 22 Nov 2024
- Updated
- 21 Jul 2025
Overview
Pin interface circuit is an open-source printed circuit board by ray33ee, from the ray33ee/DCT repository on GitHub. It is a 2-layer board of 47.5 × 27 mm with 38 parts on 28 nets, routed with 430 tracks and 16 vias.
It is built around the BSS138, PMBT2222A and S9012. Its parts include 24 resistors, 12 transistors and 2 connectors. It belongs with the interfaces and adapters boards of this library.
Main components
3
BSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETsPMBT2222A
SOT-231 NPN 10nA 1V 200mW 300 300MHz 40V 600mA 6V NPN SOT-23 Bipolar (BJT) ROHSPAKERBipolar (BJT)S9012
SOT-23-55℃~+150℃ 1 PNP 100nA 25V 300MHz 300mW 400 500mA 5V 600mV PNP SOT-23 Bipolar (BJT) ROHSFOSANBipolar (BJT)
Parts
38| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 10k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1, R2, R7, R8, R13, R14, R19, R20 |
| 8 | 2.7k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R5, R6, R11, R12, R17, R18, R23, R24 |
| 8 | 5.6k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R3, R4, R9, R10, R15, R16, R21, R22 |
| 4 | BSS138 | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q1, Q4, Q7, Q10 |
| 4 | PMBT2222A | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q3, Q6, Q9, Q12 |
| 4 | S9012 | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q2, Q5, Q8, Q11 |
| 2 | Conn_01x10 | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J1, J2 |
Questions
How big is the Pin interface circuit PCB?
It measures 47.5 × 27 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pin interface circuit use?
38 parts, built around the BSS138, PMBT2222A and S9012. 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 Pin interface circuit KiCad files?
From the ray33ee/DCT repository on GitHub, at the commit this page was made from: the board is schematics/pin_interface_circuit/pin_interface_circuit.kicad_pcb and its schematic schematics/PSU/PSU.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pin interface circuit design in my own project?
Its repository states no licence, so its author keeps all rights: ask ray33ee before reusing the design.
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