4 layers182.9 × 153.8 mm
2 layers85.9 × 58.9 mm
Spotweld
hitov/spotweld1Tiny Spot Welder PCB
- Size
- 85.9 × 58.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 48
- Nets
- 28
- Pads
- 147
- Tracks, vias
- 241, 49
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 22 Oct 2019
- Updated
- 22 Oct 2019
Overview
Spotweld is an open-source printed circuit board by hitov, from the hitov/spotweld repository on GitHub. It is a 2-layer board of 85.9 × 58.9 mm with 48 parts on 28 nets, routed with 241 tracks and 49 vias.
It is built around the ATTINY24-20SSU, TC4429VOA and IRF3205, with the 1N4148W among its other parts. Its parts include 12 resistors, 11 diodes, 8 capacitors, 8 transistors and 3 ICs. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
4
ATTINY24-20SSU
SOIC-14-40℃~+85℃ 10bit 12 128Byte 128Byte 2.7V~5.5V 20MHz 2KB 8 Bit AVR Built-in FLASH SOIC-14 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
TC4429VOA
SOIC-8-40℃~+150℃ 1 2.4V 25ns 25ns 4.5V~18V 450uA 55ns 55ns 6A 6A MOSFET SOIC-8 Gate Drivers ROHSMicrochip TechnologyGate Drivers
IRF3205
TO-220MOSFETsMinos
1N4148W
SOD-123150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHSSTMicroelectronicsSwitching Diodes
README
README.mdTiny Spot Welder
This is the Kicad project of tiny spot welder board.
Parts
48| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | R | Resistor_SMD:R_0805_2012Metric | R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12 |
| 8 | LL41 | Diode_SMD:D_MiniMELF | D4, D5, D6, D7, D8, D9, D10, D11 |
| 7 | IRF3205 | Package_TO_SOT_THT:TO-220-3_Horizontal_TabDown | Q2, Q3, Q4, Q5, Q6, Q7, Q8 |
| 4 | C | Capacitor_SMD:C_0805_2012Metric | C1, C5, C7, C8 |
| 2 | CP | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C2, C6 |
| 2 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2, J5 |
| 2 | R_POT | Potentiometer_THT:Potentiometer_Piher_T-16H_Single_Horizontal | RV1, RV2 |
| 1 | 1N4148W | Diode_SMD:D_SOD-123 | D2 |
| 1 | ATtiny24-20SSU | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U1 |
| 1 | CP | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C3 |
| 1 | CP | Capacitor_SMD:C_1206_3216Metric | C4 |
| 1 | Conn_02x03_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J1 |
| 1 | D_TVS | Diode_SMD:D_MiniMELF | D3 |
| 1 | IRF3205 | Package_TO_SOT_THT:TO-220-3_Horizontal_TabDown-nosilk | Q1 |
| 1 | L78L05_SOT89 | Package_TO_SOT_SMD:SOT-89-3 | U3 |
| 1 | LED | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_6mm_H5mm | SW1 |
| 1 | TC4429VOA | Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm | U2 |
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Questions
How big is the Spotweld PCB?
It measures 85.9 × 58.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Spotweld use?
48 parts, built around the ATTINY24-20SSU, TC4429VOA, IRF3205 and 1N4148W. 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 Spotweld KiCad files?
From the hitov/spotweld repository on GitHub, at the commit this page was made from: the board is spotweld.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Spotweld design in my own project?
Its repository states no licence, so its author keeps all rights: ask hitov before reusing the design.