2 layers158.8 × 159.8 mm
4 layers50 × 90 mm
Thermostat2
conatsera/wireless_control_board- Size
- 50 × 90 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 45
- Nets
- 63
- Pads
- 180
- Tracks, vias
- 347, 87
- Pours
- 137
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 12 Jun 2025
- Updated
- 12 Jun 2025
Overview
Thermostat2 is an open-source printed circuit board by conatsera, from the conatsera/wireless_control_board repository on GitHub, published under the CERN-OHL-W-2.0 licence. It is a 4-layer board of 50 × 90 mm with 45 parts on 63 nets, routed with 347 tracks and 87 vias.
It is built around the W25Q16JVSSIQ, PEC16-4220F-S0012 and 1N4148TA, with the DMG3406L and PMH600UNEH among its other parts. Its parts include 17 capacitors, 7 resistors, 6 connectors, 5 ICs and 4 diodes.
Main components
5
W25Q16JVSSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 10uA 133MHz 16Mbit 2.7V~3.6V 20 Years 3ms SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASHPEC16-4220F-S0012
插件Plugin Rotary Encoders ROHSBournsRotary Encoders
1N4148TA
DO-35-55℃~+175℃@(Tj) 1 Independent 100V 1V@10mA 200mA 4A 4ns 500mW 5uA@75V DO-35 Switching Diodes ROHSonsemiSwitching Diodes
DMG3406L
SOT-23-55℃~+150℃ 1 N-channel 11.2nC@10V 2.8A 2V 30V 43pF 495pF 70mΩ@4.5V 770mW SOT-23 MOSFETs ROHSDiodes IncorporatedMOSFETs
PMH600UNEH
SOT-8001-3-55℃~+150℃ 1 N-channel 20V 21.3pF 310pC@4.5V 4.6pF 620mΩ@4.5V 625mW 800mA 950mV SOT-8001-3 MOSFETs ROHSNexperiaMOSFETs
Parts
45| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 1u | Capacitor_SMD:C_0603_1608Metric | C3, C7, C8, C9, C10, C12, C13 |
| 5 | 10k | Resistor_SMD:R_0603_1608Metric | R2, R4, R5, R6, R7 |
| 3 | 100n | Capacitor_SMD:C_0402_1005Metric | C6, C15, C17 |
| 3 | 40V 2A | Panjit:SODFL3618X110N | D2, D3, D4 |
| 2 | 10n | Capacitor_SMD:C_0402_1005Metric | C14, C16 |
| 2 | 1u | Capacitor_SMD:C_0402_1005Metric | C1, C5 |
| 2 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J5, J6 |
| 2 | MountingHole | MountingHole:MountingHole_2.2mm_M2 | H1, H2 |
| 1 | 0.1u | Capacitor_SMD:C_0402_1005Metric | C2 |
| 1 | 0.47R | Resistor_SMD:R_0402_1005Metric | R3 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 10u | Capacitor_SMD:C_0603_1608Metric | C4 |
| 1 | 10uH | Inductors_extra:ATNR4010 | L1 |
| 1 | 1N4148-T | Diode_THT:D_DO-35_SOD27_P2.54mm_Vertical_AnodeUp | D1 |
| 1 | 32.768kHz | Crystal:Crystal_SMD_2012-2Pin_2.0x1.2mm | Y1 |
| 1 | 4.7u | Capacitor_SMD:C_0805_2012Metric | C11 |
| 1 | Conn_01x04 | Connector_PinHeader_1.27mm:PinHeader_1x04_P1.27mm_Vertical | J4 |
| 1 | Conn_01x05 | Connector_PinHeader_1.27mm:PinHeader_1x05_P1.27mm_Vertical | J3 |
| 1 | Conn_02x05_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical_SMD | J1 |
| 1 | DMG3406L | Package_TO_SOT_SMD:SOT-23-3 | Q2 |
| 1 | FH34SRJ-24S-0.5SH_50_ | Hirose:FH34SRJ24S05SH50 | J2 |
| 1 | PEC16-4220F-S0012 | Bourns:PEC164120FS0012 | U3 |
| 1 | PMH600UNEH | PMH600UNEH:PMH600UNEH | Q1 |
| 1 | SHT4x | Sensor_Humidity:Sensirion_DFN-4_1.5x1.5mm_P0.8mm_SHT4x_NoCentralPad | U4 |
| 1 | TLV74125PDBVR | TI2:SOT95P280X145-5N | IC1 |
| 1 | W25Q16JVSS | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U2 |
| 1 | ~ | Ezurio:453-00xxx | U1 |
Questions
How big is the Thermostat2 PCB?
It measures 50 × 90 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Thermostat2 use?
45 parts, built around the W25Q16JVSSIQ, PEC16-4220F-S0012, 1N4148TA and DMG3406L. 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 Thermostat2 KiCad files?
From the conatsera/wireless_control_board repository on GitHub, at the commit this page was made from: the board is thermostat2.kicad_pcb and its schematic thermostat2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Thermostat2 design in my own project?
Its repository publishes it under the CERN-OHL-W-2.0 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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