2 layers70 × 35 mm
2 layers50 × 32 mm
MOSFET Switch
furpectfox/Circuits- Size
- 50 × 32 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 39
- Nets
- 20
- Pads
- 78
- Tracks, vias
- 159, 0
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 22 May 2025
- Updated
- 8 Jun 2025
Overview
MOSFET Switch is an open-source printed circuit board by furpectfox, from the furpectfox/Circuits repository on GitHub. It is a 2-layer board of 50 × 32 mm with 39 parts on 20 nets, routed with 159 tracks and 0 vias.
It is built around the IRFZ44N. Its parts include 16 connectors, 8 resistors, 5 capacitors, 4 diodes and 4 transistors.
Main components
1Parts
39| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | Conn_01x01_Pin | Connector_Wire:SolderWire-0.1sqmm_1x01_D0.4mm_OD1mm | J1, J2, J3, J4, J5, J6, J7, J8, J9, J10, J11, J12, J13, J14, J15, J16 |
| 3 | LED | LED_THT:LED_D5.0mm | D1, D3, D4 |
| 2 | 100u | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C2, C5 |
| 2 | 12k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5, R6 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3, R4 |
| 2 | 560 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7, R8 |
| 2 | IRFZ44N | Package_TO_SOT_THT:TO-220-3_Vertical | Q1, Q2 |
| 1 | 0.1u | Capacitor_THT:C_Disc_D5.1mm_W3.2mm_P5.00mm | C4 |
| 1 | 10n | Capacitor_THT:C_Disc_D5.1mm_W3.2mm_P5.00mm | C1 |
| 1 | 12k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2 |
| 1 | 1N5817 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D5 |
| 1 | 4013 | Package_DIP:DIP-14_W7.62mm_LongPads | U1 |
| 1 | 470 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | 4n7 | Capacitor_THT:C_Disc_D5.1mm_W3.2mm_P5.00mm | C3 |
| 1 | L | Inductor_THT:L_Radial_D7.0mm_P3.00mm | L1 |
| 1 | Q_NPN_EBC | Package_TO_SOT_THT:TO-92L_Inline_Wide | Q3 |
| 1 | Q_PNP_EBC | Package_TO_SOT_THT:TO-92L_Inline_Wide | Q4 |
Questions
How big is the MOSFET Switch PCB?
It measures 50 × 32 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MOSFET Switch use?
39 parts, built around the IRFZ44N. 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 MOSFET Switch KiCad files?
From the furpectfox/Circuits repository on GitHub, at the commit this page was made from: the board is MOSFET_Switch/MOSFET_Switch.kicad_pcb and its schematic 3v7cell_full_charge_detection/3v7cell_full_charge_detection.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MOSFET Switch design in my own project?
Its repository states no licence, so its author keeps all rights: ask furpectfox before reusing the design.
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