2 layers131.7 × 81.3 mm
2 layers212 × 90 mm
ESP32-Relay Module
mfrisch3/ESP32-Relay_Module- Size
- 212 × 90 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 48
- Nets
- 48
- Pads
- 129
- Tracks, vias
- 172, 1
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 11 Aug 2026
- Updated
- 11 Aug 2026
Overview
ESP32-Relay Module is an open-source printed circuit board by mfrisch3, from the mfrisch3/ESP32-Relay_Module repository on GitHub. It is a 2-layer board of 212 × 90 mm with 48 parts on 48 nets, routed with 172 tracks and 1 via.
It is built around the IRLZ44N and PJ-102A. Its parts include 13 resistors, 9 diodes, 9 connectors, 4 transistors and 4 switches. It belongs with the home automation and IoT boards and the ESP32 and AVR (ATmega, ATtiny) boards of this library.
Main components
2Parts
48| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 220 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R4, R5, R6, R7, R8, R10 |
| 5 | LED | LED_THT:LED_D10.0mm | D5, D6, D7, D8, D9 |
| 4 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R9, R12, R13, R14 |
| 4 | 1N5819 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2, D3, D4 |
| 4 | Conn_01x02_Pin | Connector_PinHeader_2.00mm:PinHeader_2x01_P2.00mm_Vertical | J6, J7, J8, J9 |
| 4 | G5LE-1A DC5 | G5LE_1A_DC5:RELAY_G5LE-1A DC5_OMR | K1, K2, K3, K4 |
| 4 | IRLZ44N | Package_TO_SOT_THT:TO-220-3_Vertical | Q1, Q2, Q3, Q4 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 4 | Screw_Terminal_01x02 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J1, J2, J3, J4 |
| 4 | TestPoint | TestPoint:TestPoint_Loop_D2.54mm_Drill1.5mm_Beaded | TP1, TP2, TP3, TP4 |
| 1 | Arduino_Nano_ESP32 | Module:Arduino_Nano | A1 |
| 1 | PJ-102A | PJ_102A:CUI_PJ-102A | J5 |
Questions
How big is the ESP32-Relay Module PCB?
It measures 212 × 90 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ESP32-Relay Module use?
48 parts, built around the IRLZ44N and PJ-102A. 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 ESP32-Relay Module KiCad files?
From the mfrisch3/ESP32-Relay_Module repository on GitHub, at the commit this page was made from: the board is ESP32-Relay_Module.kicad_pcb and its schematic ESP32-Relay_Module.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ESP32-Relay Module design in my own project?
Its repository states no licence, so its author keeps all rights: ask mfrisch3 before reusing the design.
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