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2 layers54.9 × 23.5 mmStdc14 adapter, the printed circuit board in 3D

STVlink3 Adapter

Size
54.9 × 23.5 mm
Copper layers
2
Thickness
1.6 mm
Parts
26
Nets
36
Pads
112
Tracks, vias
245, 38
Pours
1
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
23 Jul 2025
Updated
23 Jul 2025

Overview

Stdc14 adapter is an open-source printed circuit board by arvindsa, from the arvindsa/stlinkv3-adapter repository on GitHub. It is a 2-layer board of 54.9 × 23.5 mm with 26 parts on 36 nets, routed with 245 tracks and 38 vias.

It is built around the AP2112K-3.3, MCP73831 and DMG3415U, with the MBR0540 and USB4085-GF-A among its other parts. Its parts include 7 resistors, 5 capacitors, 5 connectors, 3 diodes and 2 ICs. It belongs with the interfaces and adapters boards of this library.

Main components

5

Parts

26
QtyValueFootprintReferences
24.7uFCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC9, C10
25.1KResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR1, R2
2CCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC11, C12
2RedLED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolderD2, D3
10.1uCapacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolderC6
1100KResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR11
1100kResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR5
11KResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR3
12KResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR9
1470EResistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolderR7
1AP2112K-3.3Package_TO_SOT_SMD:SOT-23-5U3
1Conn_01x04Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ5
1Conn_02x07_Odd_EvenConnector_PinHeader_2.54mm:PinHeader_2x07_P2.54mm_VerticalJ3
1Conn_ST_STDC14Connector_PinHeader_1.27mm:PinHeader_2x07_P1.27mm_Vertical_SMDJ2
1DMG3415Package_TO_SOT_SMD:SOT-23Q1
1LOGOLOGOG***
1MBR0540Diode_SMD:D_SOD-123D1
1MCP73831Package_TO_SOT_SMD:SOT-23-5U2
1SW_PushButton_Switch_SMD:SW_SPST_Omron_B3FS-105xPSW1
1SW_SPDTButton_Switch_SMD:SW_SPDT_PCM12SW2
1USB4085-GF-AArvind_Connector_USB:USB_C_Receptacle_GCT_USB4085_NoSilkScreenoverPCBedgeJ1
1~Connector_JST:JST_PH_S2B-PH-SM4-TB_1x02-1MP_P2.00mm_HorizontalJ4

Questions

How big is the Stdc14 adapter PCB?

It measures 54.9 × 23.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Stdc14 adapter use?

26 parts, built around the AP2112K-3.3, MCP73831, DMG3415U and MBR0540. 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 Stdc14 adapter KiCad files?

From the arvindsa/stlinkv3-adapter repository on GitHub, at the commit this page was made from: the board is stdc14_adapter.kicad_pcb and its schematic stdc14_adapter.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Stdc14 adapter design in my own project?

Its repository states no licence, so its author keeps all rights: ask arvindsa before reusing the design.

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