Circuit Issues
Templates
#0110OutputDRC cleanv1.2

Low-side switch 5 A, 24 V

Logic-level N-MOSFET low-side switch for pumps, LED strips and solenoids, with a gate series resistor, a gate pull-down (off at reset) and a place for a freewheeling diode across the load (not fitted by default: fit it for inductive loads).

3D render of the 0110 Low-side switch 5 A, 24 V KiCad design block
3D render (KiCad 10)
3D render of the 0110 Low-side switch 5 A, 24 V KiCad design block
3D render, top view (KiCad 10)
Schematic of the 0110 Low-side switch 5 A, 24 V KiCad design block
Schematic (KiCad 10)

Key specifications

  • Load supply up to 24 V, 5 A continuous
  • PWM capable from a 3.3 V GPIO

Design notes

  • The freewheel diode across the load is not fitted by default: fit it for every inductive load (pumps, solenoids, motors), otherwise the MOSFET sees the inductive kick.

Seen in real hardware

Flossa AI Controller PCBA, 3D render, isometric view

Flossa AI Controller

Uses this block alongside 9 other templates · flossa.ai

Coming soon

This block is not available yet. It is released once its checks are complete. Planned price: €29.

One email when this template is released. No spam.

Planned package contents

  • KiCad 10 design block

    Schematic and PCB layout fragment; symbols and footprints embedded

  • BOM (CSV)

    Manufacturer part numbers and LCSC codes

  • Schematic PDF + README

    Interface, specs, population options and design notes

  • 3D model (STEP)

    The whole block as one STEP file for your enclosure design

  • template.yaml

    Machine-readable interface and limits

  • Licence

    Use in your own products, commercial ones included

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Development status

Block ID0110
Block name0110-lowside-switch-5a-24v
Version1.2
StatusDRC clean – Schematic and layout pass the KiCad rule checks; not yet verified on hardware.
Open review itemsNone
PCB layoutRule-checked layout fragment
FormatKiCad 10 design block (schematic + PCB)
Last change2026-11-05

Interface

Hierarchical labels the block exposes to the rest of your design. ${ID} is replaced per instance, so several copies can live on one sheet.

NetDirectionDescription
LOAD${ID}_SUP+Power inLoad supply positive (up to 24 V)
LOAD${ID}_SWITCHPassiveSwitched output — drain side of MOSFET (connects to load)
PWM_DRIVER${ID}_CONTROLInputPWM / digital control signal, drives the MOSFET gate through a series resistor

FAQ

Which KiCad version do I need?

KiCad 10. The files are saved in the KiCad 10 format and are meant to be placed with KiCad’s Design Blocks feature (schematic block, then “Apply Design Block Layout” on the PCB).

Do I need the Circuit Issues part library?

No. Symbols are embedded in the schematic and footprints in the PCB, so the block opens on its own. Parts carry manufacturer part numbers and LCSC codes.

Is the layout production-ready?

The layout fragment passes the KiCad design rule check. Route it into your board and run DRC with your own fab rules.

Can I use the template in a commercial product?

The licence terms are published together with the first release.

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