4 layers150 × 91.4 mm
4 layers174 × 110 mm
Relay board
OpenMagnetics/Lab- Size
- 174 × 110 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 158
- Nets
- 192
- Pads
- 642
- Tracks, vias
- 1,521, 639
- Pours
- 8
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 23 Nov 2024
- Updated
- 26 Oct 2026
Overview
Relay board is an open-source printed circuit board by OpenMagnetics, from the OpenMagnetics/Lab repository on GitHub. It is a 4-layer board of 174 × 110 mm with 158 parts on 192 nets, routed with 1,521 tracks and 639 vias.
It is built around the G6K-2F-RF-S DC5. Its parts include 35 resistors, 34 capacitors, 25 switches, 13 connectors and 12 ICs. It belongs with the home automation and IoT boards of this library.
Main components
1Parts
158| Qty | Value | Footprint | References |
|---|---|---|---|
| 23 | G6K-2F-RF-S | Relay_Omron_G6K-2F-RF-S | K1, K2, K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K20, K21, K22, K23 +7 |
| 22 | R_0402_1005Metric | R_0402_1005Metric | R1, R2, R3, R10, R17, R20, R21, R22, R23, R28, R29, R30, R31, R32, R33, R34 +6 |
| 19 | C_0402_1005Metric | C_0402_1005Metric | C5, C6, C10, C11, C12, C15, C16, C17, C18, C19, C25, C26, C27, C28, C36, C37 +3 |
| 8 | C_0805_2012Metric | C_0805_2012Metric | C1, C2, C23, C29, C32, C33, C34, C35 |
| 8 | Grayhill 02-21 | Grayhill_02-21_BananaPlug_4mm | J10, J11, J12, J13, J14, J15, J16, J17 |
| 7 | TestPoint_Pad_D1.5mm | TestPoint_Pad_D1.5mm | TP3, TP4, TP5, TP6, TP7, TP8, TP9 |
| 6 | C_0603_1608Metric | C_0603_1608Metric | C3, C4, C20, C21, C30, C31 |
| 6 | R_0603_1608Metric | R_0603_1608Metric | R24, R25, R26, R27, R36, R37 |
| 6 | R_0805_2012Metric | R_0805_2012Metric | R5, R12, R13, R14, R15, R16 |
| 6 | SOT-23-5 | SOT-23-5 | U5, U7, U8, U9, U10, U11 |
| 5 | GND bonding strip | OpenMagnetics:GND_BondingStrip | BOND1, BOND2, BOND3, BOND4, BOND5 |
| 5 | LED_0603_1608Metric | LED_0603_1608Metric | D1, D5, D6, D7, D8 |
| 5 | MountingHole_3.2mm_M3_Pad_Via | MountingHole_3.2mm_M3_Pad_Via | H1, H2, H3, H4, H5 |
| 4 | NetTie-2_SMD_Pad0.5mm | NetTie-2_SMD_Pad0.5mm | NT1, NT2, NT4, NT5 |
| 4 | SOIC-16_3.9x9.9mm_P1.27mm | SOIC-16_3.9x9.9mm_P1.27mm | U2, U3, U4, U6 |
| 3 | BNC_Amphenol_B6252HB-NPP3G-50_Horizontal | BNC_Amphenol_B6252HB-NPP3G-50_Horizontal | J6, J7, J9 |
| 3 | Fiducial_1mm_Mask2mm | Fiducial_1mm_Mask2mm | FID1, FID2, FID3 |
| 2 | L_0603_1608Metric | L_0603_1608Metric | FB2, FB3 |
| 2 | SOT-23 | SOT-23 | D3, D4 |
| 2 | SW_SPST_TL3342 | SW_SPST_TL3342 | SW1, SW2 |
| 2 | TestPoint_Pad_1.5x1.5mm | TestPoint_Pad_1.5x1.5mm | TP1, TP2 |
| 1 | C_1206_3216Metric | C_1206_3216Metric | C22 |
| 1 | D_SOD-123F | D_SOD-123F | D9 |
| 1 | LQFP-48_7x7mm_P0.5mm | LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | L_0805_2012Metric | L_0805_2012Metric | FB1 |
| 1 | L_CommonModeChoke_Coilank_ACM2012 | L_CommonModeChoke_Coilank_ACM2012 | L1 |
| 1 | PinHeader_2x05_P1.27mm_Vertical_SMD | PinHeader_2x05_P1.27mm_Vertical_SMD | J8 |
| 1 | R_1206_3216Metric | R_1206_3216Metric | R18 |
| 1 | SOT-23-6 | SOT-23-6 | D2 |
| 1 | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm | WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm | U12 |
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Questions
How big is the Relay board PCB?
It measures 174 × 110 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Relay board use?
158 parts, built around the G6K-2F-RF-S DC5. 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 Relay board KiCad files?
From the OpenMagnetics/Lab repository on GitHub, at the commit this page was made from: the board is hardware/relay-board-revC/relay_board.kicad_pcb and its schematic hardware/B-WIC-Adapter/adapter_leakage.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Relay board design in my own project?
Its repository states no licence, so its author keeps all rights: ask OpenMagnetics before reusing the design.