HardLabs

4x relay board

abzman·small-useful-PCBs·4x relay board/4x relay board.kicad_pcb

4x relay board layout, top view — open source board by abzman
Simulate this board

About the 4x relay board

4x relay board is an open source PCB design by abzman, published on GitHub under the Unlicense license. It is a 2-layer board measuring 61 × 47 mm, with 24 components from 14 distinct parts.

By type, the board carries 8 resistors, 4 transistors, 4 relays, 4 diodes, 3 connectors and 1 capacitor.

4x relay board bill of materials (BOM)

24 components, 14 distinct parts — part numbers from the project's BOM.

QtyPartRefs
3
BC548
2N7002
Q1, Q2, Q4
1
BC558
2N7002
Q3
1
KMDGX-9S-BS-1
Conn_01x02
J1
1
Conn_01x04
J2
1
Screw_Terminal_01x08
J3
4
sonoff_relay
K1, K2, K3, K4
4
1N4148
D1, D2, D3, D4
1
100NF
100uF
C1
1
100
1K
R1
1
470
1K
R2
2
1K
R3, R4
1
180
10K
R5
1
680
10K
R6
2
4.7K
10K
R7, R8

4x relay board design files

The KiCad project lives in the abzman/small-useful-PCBs repository on GitHub; these links point at the commit this page was built from.

4x relay board: common questions

How big is the 4x relay board?

The 4x relay board measures 61 × 47 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 4x relay board?

24 components, from 14 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the 4x relay board design files?

From the abzman/small-useful-PCBs repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the 4x relay board design in my own project?

Yes, under the terms of its Unlicense license, which abzman chose for the repository.

More boards in small-useful-PCBs