

Solid State Relay
Some small Projects made in KiCaD v8.0
- Size
- 30 × 30 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 10
- Nets
- 10
- Pads
- 21
- Tracks, vias
- 46, 0
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 19 Dec 2025
- Updated
- 19 Dec 2025
Overview
Solid State Relay is an open-source printed circuit board by AlejandroKT, from the AlejandroKT/KiCad-Projects repository on GitHub. It is a 2-layer board of 30 × 30 mm with 10 parts on 10 nets, routed with 46 tracks and 0 vias.
It is built around the BTA16-600B and MOC3021M. Its parts include 3 resistors, 2 connectors, 1 IC, 1 diode and 1 transistor. It belongs with the home automation and IoT boards of this library.
Main components
2Parts
10| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 1k | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | LOGO | Symbol:logo_empresa | G***, G*** |
| 1 | 470 | Resistor_SMD:R_2512_6332Metric | R3 |
| 1 | BTA16-600B | Package_TO_SOT_THT:TO-220-3_Vertical | Q1 |
| 1 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | LED | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | MOC3021M | Package_DIP:DIP-6_W7.62mm | U1 |
| 1 | Screw_Terminal_01x02 | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J2 |
Questions
How big is the Solid State Relay PCB?
It measures 30 × 30 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Solid State Relay use?
10 parts, built around the BTA16-600B and MOC3021M. 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 Solid State Relay KiCad files?
From the AlejandroKT/KiCad-Projects repository on GitHub, at the commit this page was made from: the board is SolidSateRelay/Solid State Relay/Solid State Relay.kicad_pcb and its schematic Servo Tester IC 555/Servo Tester/Servo Tester.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Solid State Relay design in my own project?
Its repository states no licence, so its author keeps all rights: ask AlejandroKT before reusing the design.
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