2 layers121 × 54 mm
2 layers182 × 48 mm
SSR8A
burgrp/hw-SSR8A8 channel 2A mains switch, based on SSR and ESP8266
- Size
- 182 × 48 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 35
- Nets
- 30
- Pads
- 151
- Tracks, vias
- 313, 91
- Pours
- 100
- Routed
- Yes
- KiCad
- KiCad 7 (file 20230410)
- Created
- 2 Feb 2018
- Updated
- 28 Jul 2026
Overview
SSR8A is an open-source printed circuit board by burgrp, from the burgrp/hw-SSR8A repository on GitHub. It is a 2-layer board of 182 × 48 mm with 35 parts on 30 nets, routed with 313 tracks and 91 vias.
It is built around the ESP32-C3-WROOM-02-H4, HLK-PM01 and LM1117-3.3. Its parts include 11 ICs, 4 capacitors, 4 resistors, 3 crystals and 1 diode. It belongs with the ESP32 and RISC-V boards of this library.
Main components
3
ESP32-C3-WROOM-02-H4
SMD,20x18mm-105dBm -40℃~+105℃ 2.4GHz 20.5dBm 345mA 3V~3.6V 82mA Bluetooth5.0 ESP32-C3 On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD,20x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
HLK-PM01
DIP,34x24mm0.1W 100mVp-p 15mm 20mm 34mm 3W 3kV 5V 700mA 73% 85VAC~265VAC AC-DC Short Circuit Protection、Over Current Protection、Fault self-recovery ±0.2% 插件,34x20mm AC-DC Power Modules ROHSHI-LINKAC-DC Power Modules
LM1117-3.3
SOT-2231 1.3V@(1000mA) 15V 1A 2mA 3.3V Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHShongjiachengUncategorised
Parts
35| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | Conn_01x02 | Drake:DG235-3.81-02P | IN1, J2, J3, J4, J5, J6, J7, J8, J9 |
| 8 | G3MB-SSR | Drake:G3MB-SSR | U4, U5, U6, U7, U8, U9, U10, U11 |
| 2 | 47u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C4 |
| 2 | 4k7 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R3 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 10u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2 |
| 1 | 1u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 1 | 270R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | B72650M251K72 | Resistor_SMD:R_1210_3225Metric_Pad1.30x2.65mm_HandSolder | RV1 |
| 1 | ESP32-C3-WROOM-02 | Drake:ESP32-C3-WROOM-02 Handsolder | U2 |
| 1 | HLK-PM01 | Drake:HLK-PM01 | U1 |
| 1 | I2C | Connector_IDC:IDC-Header_2x03_P2.54mm_Vertical | X3 |
| 1 | I2C | Drake:Micro-Match-FOB-6 | X2 |
| 1 | I2C | Drake:Micro-Match-FOB-4 | X1 |
| 1 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 1 | LM1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U3 |
| 1 | MountingHole | MountingHole:MountingHole_3.7mm_Pad_Via | H1 |
| 1 | PROG | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1 |
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Questions
How big is the SSR8A PCB?
It measures 182 × 48 mm and has 2 copper layers, 1.6 mm thick.
What parts does the SSR8A use?
35 parts, built around the ESP32-C3-WROOM-02-H4, HLK-PM01 and LM1117-3.3. 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 SSR8A KiCad files?
From the burgrp/hw-SSR8A repository on GitHub, at the commit this page was made from: the board is board/SSR8A.kicad_pcb and its schematic board/SSR8A.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SSR8A design in my own project?
Its repository states no licence, so its author keeps all rights: ask burgrp before reusing the design.