6 layers48 × 42.3 mm
I2c sensor board
Okanagan-Marine-Robotics/Electrical
Repo For Electrical pcbs and documentation
31 parts2
4 layers90 × 90 mm
KICAD reflow oven
leodk27/Reflow-oven-CustomReflow oven project based on custom PCB and programming
- Size
- 90 × 90 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 125
- Nets
- 87
- Pads
- 371
- Tracks, vias
- 827, 280
- Pours
- 7
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 6 Apr 2026
- Updated
- 6 Apr 2026
Overview
KICAD reflow oven is an open-source printed circuit board by leodk27, from the leodk27/Reflow-oven-Custom repository on GitHub, published under the MIT licence. It is a 4-layer board of 90 × 90 mm with 125 parts on 87 nets, routed with 827 tracks and 280 vias.
It is built around the ATMEGA328PB-AU, 74LVC125AD and BTA16-600BW, with the IRM-02-5, TMP235AEDCKRQ1 and TMCS1100A2QDRQ1 among its other parts. Its parts include 47 capacitors, 36 resistors, 13 ICs, 7 connectors and 2 diodes. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
12
ATMEGA328PB-AU
TQFP-32(7x7)-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 27 2KB 32KB 8 Bit AVR Built-in FLASH Power-on reset (POR)、Undervoltage detection (BOR/LVD/LVR/LVI)、Watchdog reset、External pin reset (NRST)、Built-in general-purpose timer、Programmable watchdog、Touch function TQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
74LVC125AD
SOP-14L-40℃~+125℃ 1 1.65V~5.5V 2.6ns@5V,15pF 4 40uA 50mA 50mA 74LVC Schmitt trigger Tri-State Unidirectional SOP-14L Buffers, Drivers, Receivers, Transceivers ROHSMDDBuffers, Drivers, Receivers, Transceivers
BTA16-600BW
TO-220A-40℃~+125℃ 1 TRIAC 1.5V 160A@20ms 16A 1V 500mW 50mA 50mA 600V TO-220A Thyristors (SCR)/Modules ROHSKTPThyristors (SCR)/Modules
IRM-02-5
TH-4PTH-4P Power Module/Power Supply ROHSMWPower Module/Power Supply
TMP235AEDCKRQ1
SC-70-5-40℃~+150℃ 2.3V~5.5V 800us ±2.5℃ SC-70-5 Temperature Sensors ROHSTexas InstrumentsTemperature Sensors
TMCS1100A2QDRQ1
SOIC-8-40℃~+125℃ 1.8mΩ 100mV/A 3V~5.5V 3kVrms 6.5us 6mA 80kHz Overcurrent Protection、Bidirectional detection Support ±23A SOIC-8 Current Sensors ROHSTexas InstrumentsCurrent Sensors
MAX31856
UncategorisedMaxim Integrated (Analog Devices)
MOC3063M
DIP-6-40℃~+85℃ 1 1.5V 250mW 30mA 6 600V 600V/us 7.5kV TRIAC Yes DIP-6 Triac, SCR Output Optoisolators ROHSonsemiTriac, SCR Output Optoisolators
TLV75533PDBV
SOT-23-5-40℃~+125℃@(Tj) 1 238mV@(500mA) 25uA 3.3V 46dB@(100kHz) 5.5V 500mA 71.5uVrms Fixed Over Current Protection、Thermal Shutdown、Input undervoltage protection Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
TPS2116DRL
SOT-583Operating status indication SOT-583 Power Management - Specialized ROHSTexas InstrumentsPower Distribution Switches
ESD5Z5V0
SOD-523-55℃~+150℃ 1 105W 15V 5V 6.2V 7A 80nA 80pF ESD IEC 61000-4-2 Unidirectional SOD-523 ESD and Surge Protection (TVS/ESD) ROHSMDDESD And Surge Protection (TVS/ESD)
RCLAMP0504FBTCT
SC-70-617.5V 28A@8/20us 500W 5V 6V TVS SC-70-6 ESD and Surge Protection (TVS/ESD) ROHSSEMTECHESD And Surge Protection (TVS/ESD)
README
README.mdReflow Oven Controller
KES – Kwas Engineering Solutions
Overview
This is a controller for a reflow oven.
System
The system has three parts:
- Measurement (temperature)
- Control (microcontroller)
- Power switching (heater)
Hardware
- Microcontroller
- Thermocouple interface
- Triac switching stage
- Power supply (internal and external)
Firmware
- Runs the temperature profile
- Handles faults
- Communicates over custom RJ45 service port
Safety
- High and low voltage are separated
- Layout respects clearance
- Faults lead to shutdown
Structure
/KICAD reflow-oven— KiCad files/firmware— code/docs— notes
License
See LICENSE file.
Parts
125| Qty | Value | Footprint | References |
|---|---|---|---|
| 23 | 100n | Capacitor_SMD:C_0603_1608Metric | C2, C3, C14, C15, C18, C24, C26, C27, C32, C33, C35, C37, C38, C40, C42, C43 +7 |
| 12 | 100 | Resistor_SMD:R_0603_1608Metric | R10, R11, R12, R13, R14, R15, R16, R17, R25, R26, R28, R29 |
| 9 | 10n | Capacitor_SMD:C_0603_1608Metric | C13, C16, C17, C19, C20, C34, C36, C39, C41 |
| 8 | 10k | Resistor_SMD:R_0603_1608Metric | R3, R6, R7, R8, R31, R33, R34, R35 |
| 5 | 10u | Capacitor_SMD:C_1206_3216Metric | C1, C4, C6, C8, C28 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_2.2mm_M2_ISO7380_Pad | H1, H2, H3, H4 |
| 3 | 100k | Resistor_SMD:R_0603_1608Metric | R2, R4, R18 |
| 3 | 1k | Resistor_SMD:R_0603_1608Metric | R5, R24, R27 |
| 3 | 4.7n | Capacitor_SMD:C_0603_1608Metric | C23, C30, C31 |
| 3 | JST_PH | Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | J5, J6, J7 |
| 3 | TP_GND | TestPoint:TestPoint_Pad_D1.0mm | TP6, TP9, TP12 |
| 2 | 100u | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C5, C29 |
| 2 | 10k | Capacitor_SMD:C_0603_1608Metric | R30, R32 |
| 2 | 1u | Capacitor_SMD:C_0805_2012Metric | C10, C11 |
| 2 | 22p | Capacitor_SMD:C_0603_1608Metric | C21, C22 |
| 2 | 360 | Resistor_SMD:R_2512_6332Metric | R21, R23 |
| 2 | MAX31856 | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U9, U10 |
| 2 | Screw_Terminal_01x02 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J2, J3 |
| 2 | TMP235AEDCKRQ1 | Package_TO_SOT_SMD:SOT-353_SC-70-5 | IC1, IC2 |
| 1 | 100 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R20 |
| 1 | 100n | Capacitor_THT:C_Rect_L18.0mm_W6.0mm_P15.00mm_FKS3_FKP3 | C25 |
| 1 | 10k NTC | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | TH1 |
| 1 | 16MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 2.2k | Resistor_SMD:R_0603_1608Metric | R19 |
| 1 | 20m | Resistor_SMD:R_2512_6332Metric | R37 |
| 1 | 220 | Resistor_SMD:R_0805_2012Metric | R22 |
| 1 | 360k | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 470 | Resistor_SMD:R_0603_1608Metric | R36 |
| 1 | 6.8V | Diode_SMD:D_SOD-123 | D1 |
| 1 | 600 @ 100M | Inductor_SMD:L_0603_1608Metric | FB1 |
| 1 | 74LVC125 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U8 |
| 1 | AP2553W6-7 | Custom_footprints:SOT26_DIO | U2 |
| 1 | ATmega328PB-A | Package_QFP:TQFP-32_7x7mm_P0.8mm | U4 |
| 1 | BTA16-600BW | Package_TO_SOT_THT:TO-220-3_Vertical | Q2 |
| 1 | ESD5Z5V | Diode_SMD:D_SOD-523 | D2 |
| 1 | Fuse | Fuse:Fuseholder_Cylinder-5x20mm_Schurter_0031_8201_Horizontal_Open | F1 |
| 1 | INA180A1 | Package_TO_SOT_SMD:SOT-23-5 | U11 |
| 1 | IRM-02-5 | Converter_ACDC:Converter_ACDC_MeanWell_IRM-02-xx_THT | PS1 |
| 1 | KES-POGO_ISP_HEADER | Custom_footprints:KES_POGO_ISP_2x03_P1.27mm_Vertical | J1 |
| 1 | LM4030-2.5/NOPB | Package_TO_SOT_SMD:SOT-23-5 | U6 |
| 1 | LOGO | silkscreen-logos:KES_30x20mm | G*** |
| 1 | MOC3063M | Package_DIP:DIP-6_W7.62mm_LongPads | U7 |
| 1 | PMOS | Package_TO_SOT_SMD:SOT-23-3 | Q1 |
| 1 | RCLAMP0504FBTCT | Package_TO_SOT_SMD:SOT-363_SC-70-6 | CR1 |
| 1 | RJ45_LED_Shielded_SH1_SH2 | Custom_footprints:ADAMTECH_MTJ-88ARX1-FSM-LG | J4 |
| 1 | TLV75533PDBV | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | TMCS1100A2QDR | Custom_footprints:SOIC8_D_TEX | U5 |
| 1 | TPS2116DRL | Package_TO_SOT_SMD:SOT-583-8 | U1 |
| 1 | TP_3V3 | TestPoint:TestPoint_Pad_D1.0mm | TP3 |
| 1 | TP_5V | TestPoint:TestPoint_Pad_D1.0mm | TP1 |
| 1 | TP_HEAT_F | TestPoint:TestPoint_Pad_D1.0mm | TP14 |
| 1 | Varistor | Varistor:RV_Disc_D15.5mm_W5.2mm_P7.5mm | RV1 |
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Questions
How big is the KICAD reflow oven PCB?
It measures 90 × 90 mm and has 4 copper layers, 1.6 mm thick.
What parts does the KICAD reflow oven use?
125 parts, built around the ATMEGA328PB-AU, 74LVC125AD, BTA16-600BW and IRM-02-5. 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 KICAD reflow oven KiCad files?
From the leodk27/Reflow-oven-Custom repository on GitHub, at the commit this page was made from: the board is KICAD reflow-oven/KICAD reflow-oven.kicad_pcb and its schematic KICAD reflow-oven/02_MCU.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the KICAD reflow oven design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).