2 layers144.3 × 112.6 mm
4ch relay-1fan arduino nano pcb
ashloverscn/4ch-relay-1fan-arduino-nano-pcb
4ch-relay-1fan-arduino-nano-pcb
62 parts1
2 layers58.3 × 29.5 mm
Dimmer pcb
ashloverscn/dimmer-pcb1dimmer-pcb
- Size
- 58.3 × 29.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 13
- Nets
- 16
- Pads
- 37
- Tracks, vias
- 75, 0
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 3 Oct 2026
- Updated
- 20 Oct 2026
Overview
Dimmer pcb is an open-source printed circuit board by ashloverscn, from the ashloverscn/dimmer-pcb repository on GitHub. It is a 2-layer board of 58.3 × 29.5 mm with 13 parts on 16 nets, routed with 75 tracks and 0 vias.
It is built around the BT136, MOC3021M and DB107. Its parts include 5 resistors, 3 connectors, 2 ICs, 1 capacitor and 1 transistor.
Main components
3
BT136
TO-220-3L-40℃~+125℃ 1 TRIAC 1.45V 1.7V 10mA 20mA 25A 500mW 600V 6A TO-220-3L Thyristors (SCR)/Modules ROHSJiangsu Changjing Electronics Technology (CJ)Thyristors (SCR)/Modules
MOC3021M
DIP-6-40℃~+85℃ 0.1mA 1 1.15V 100mA 330mW 4.17kV 400V 6 60mA No TRIAC DIP-6 Triac, SCR Output Optoisolators ROHSonsemiTriac, SCR Output OptoisolatorsDB107
DB-55℃~+150℃ 1A 1V@500mA 1kV 30A 5uA@1kV Single-Phase Rectifier DB Bridge Rectifiers ROHSYangzhou Yangjie Electronic TechnologyBridge Rectifiers
README
README.mddimmer-pcb
dimmer-pcb
library:
https://github.com/ashloverscn/atmega328-16mhz-ac-phase-control
https://github.com/ashloverscn/atmega8-16mhz-ac-phase-control
Parts
13| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | ~ | TerminalBlock:TerminalBlock_MaiXu_MX126-5.0-02P_1x02_P5.00mm | J1, J2 |
| 1 | 100k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R1 |
| 1 | 104J | Capacitor_THT:C_Rect_L18.0mm_W6.0mm_P15.00mm_FKS3_FKP3 | C1 |
| 1 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R4 |
| 1 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R3 |
| 1 | 330 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R5 |
| 1 | 39 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R2 |
| 1 | BT136 | Package_TO_SOT_THT:TO-220-3_Vertical | Q1 |
| 1 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J3 |
| 1 | DB107 | DB107:DIP825W50P509L880H320Q4 | BR1 |
| 1 | MOC3021M | Package_DIP:DIP-6_W7.62mm_LongPads | U3 |
| 1 | PC817 | Package_DIP:DIP-4_W7.62mm_LongPads | U1 |
Questions
How big is the Dimmer pcb PCB?
It measures 58.3 × 29.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Dimmer pcb use?
13 parts, built around the BT136, MOC3021M and DB107. 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 Dimmer pcb KiCad files?
From the ashloverscn/dimmer-pcb repository on GitHub, at the commit this page was made from: the board is dimmer-pcb.kicad_pcb and its schematic dimmer-pcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Dimmer pcb design in my own project?
Its repository states no licence, so its author keeps all rights: ask ashloverscn before reusing the design.
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