

SR Aktor
Switch Relais Aktor N2k
- Size
- 50 × 47.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 26
- Nets
- 60
- Pads
- 117
- Tracks, vias
- 131, 10
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 6 Apr 2025
- Updated
- 15 Oct 2026
Overview
SR Aktor is an open-source printed circuit board by gerryvel, from the gerryvel/SR-Aktor repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 50 × 47.3 mm with 26 parts on 60 nets, routed with 131 tracks and 10 vias.
It is built around the SN65HVD230D, TSR 1-2450 and BCR523, with the S1G, B360 and B72530T0300K062 among its other parts. Its parts include 8 diodes, 3 ICs, 3 transistors, 3 switches and 2 capacitors. It belongs with the ESP32 and RISC-V boards of this library.
Main components
9SN65HVD230D
SOIC-8-40℃~+85℃ 1 17mA 1Mbps 370uA 3V~3.6V CAN Transceiver Low-power mode、Wake-up function、ESD protection、Thermal shutdown protection、Bus fault protection、Hot-swap protection SOIC-8 CAN Transceivers ROHSTexas InstrumentsCAN TransceiversTSR 1-2450
SIP,11.6x7.5mm-40℃~+85℃ 10.2mm 11.6mm 1A 2200uF 300uA 50mVp-p 5V 7.5mm 7V~36V 850kHz 94% Short Circuit Protection、Automatic fault recovery ±1% SIP,11.6x7.5mm DC-DC Power Modules ROHSYLPTECDC-DC Power ModulesBCR523
SOT23-350V 500mA NPN Silicon Digital TransistorInfineon TechnologiesUncategorisedS1G
SMA(DO-214AC)-55℃~+150℃ 1.1V@1A 1A 30A 400V 5uA Independent SMA(DO-214AC) Diodes - General Purpose ROHSTWGMCDiodes - General PurposeB360
SMC(DO-214AB)-55℃~+150℃ 1 Independent 100A 3A 500uA@60V 60V 700mV@3A SMC(DO-214AB) Schottky Diodes ROHSDiodes IncorporatedSchottky DiodesB72530T0300K062
12102J 2nF@1kHz 300A 30V 38V 47V 1210 Varistors ROHSTDKVaristorsP4SMAJ26CA
SMA(DO-214AC)-50℃~+150℃ 1uA 26V 28.9V 400W 42.1V 9.5A Bidirectional TVS SMA(DO-214AC) ESD and Surge Protection (TVS/ESD) ROHSDIOTECESD And Surge Protection (TVS/ESD)PESD1CAN
SOT-23-65℃~+150℃ 11pF 1nA 2 200W@8/20us 24V 30.3V 3A@8/20us 70V Bidirectional ESD IEC 61000-4-2、IEC 61000-4-5 SOT-23 ESD and Surge Protection (TVS/ESD) ROHSNexperiaESD And Surge Protection (TVS/ESD)SMCJ6.5CA
SMC-55℃~+150℃ 1.5kW@10/1000us 11.2V 133.9A@10/1000us 500uA 6.5V 7.98V Bidirectional TVS SMC ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICUncategorised
README
README.mdSR Actor
Description
This repository shows how to switch 3 relais (je 4A max with 2x2A contacts) from Chartplotter with CZone Support and also with the website support.
- Switching Relais Aktor
and send it as NNMEA2000 meassage.
- PGN 127501 // Binary Status Report
- PGN 127502 // Binary Switch Control
- PGN 126208 // Switch Control for B&G
- PGN 130817
- PGN 65283
- PGN 65284
- PGN 65288
- PGN 65290 CZone
In addition, the operation of the relays, data and settings can be accessed via the website.
Based on the work of
The project requires the NMEA2000 and the NMEA2000_esp32 libraries from Timo Lappalainen: https://github.com/ttlappalainen.
This project is part of OpenBoatProject
Wiring diagram
PCB Layout
PCB by Aisler: Link
Website
Chartplotter
I use an B&G Vulcan 7 with Czone Support, after import the file:
Configure Czone file with the CZone Configuration tool V 6.29.22
Fotos
Changes
- Version 1.3.2 CZone funtion with B&G Vulcan okay
- Version 1.0 Function with Website control, Monitor on NMEA200 okay (PGN127501)
Parts
26| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | BCR523 | PCM_Package_TO_SOT_SMD_AKL:SOT-23 | Q1, Q2, Q3 |
| 3 | IM03 | Eigene:Relay_DPDT_AXICOM_IMSeries_Pitch5.08mm | K1, K2, K3 |
| 3 | S1G | PCM_Diode_SMD_AKL:D_SMA | D6, D7, D8 |
| 1 | 10k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R2 |
| 1 | 300R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1 |
| 1 | B360 | Diode_SMD:D_SMC | D2 |
| 1 | B72530T0300K062 | Fuse:Fuse_1210_3225Metric_Pad1.42x2.65mm_HandSolder | RV1 |
| 1 | C10µ | Capacitor_Tantalum_SMD:CP_EIA-7343-15_Kemet-W_Pad2.25x2.55mm_HandSolder | C1 |
| 1 | C22µ | Capacitor_Tantalum_SMD:CP_EIA-7343-15_Kemet-W_Pad2.25x2.55mm_HandSolder | C2 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J1 |
| 1 | Conn_02x03_Pin | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J2 |
| 1 | EPCO B82789C0513 | Eigene:B82789C0113N002 | FL1 |
| 1 | ESP32-Huzzah | Eigene:Adafruit_ESP32 | U2 |
| 1 | LED_RBKG | Eigene:PinHeader_1x04_P2.00mm_LED RGB | D4 |
| 1 | OpenBoat Logo | Eigene:Openboatslogo | G1 |
| 1 | P4SMAJ26CA | PCM_Diode_SMD_AKL:D_SMA_TVS | D1 |
| 1 | PESD1CAN | PCM_Package_TO_SOT_SMD_AKL:SOT-23 | D5 |
| 1 | SMCJ6.5CA | PCM_Diode_SMD_AKL:D_SMC_TVS | D3 |
| 1 | SN65HVD230 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | TSR_1-2450 | Converter_DCDC:Converter_DCDC_TRACO_TSR-1_THT | U1 |
Questions
How big is the SR Aktor PCB?
It measures 50 × 47.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the SR Aktor use?
26 parts, built around the SN65HVD230D, TSR 1-2450, BCR523 and S1G. 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 SR Aktor KiCad files?
From the gerryvel/SR-Aktor repository on GitHub, at the commit this page was made from: the board is KiCAD/SR Aktor.kicad_pcb and its schematic KiCAD/SR Aktor.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SR Aktor design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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