You've got a DC motor, a pump, or a solenoid that needs 24V and 5A, and your microcontroller can't drive it directly. This module is the switch in between. The IRF520N mosfet handles the current while your Arduino just talks to it through a 3-pin header. Screw terminals on the output side mean you're not soldering thick gauge wire every time you swap a load. Lighting rigs, small pumps, solenoid valves — if it pulls up to 5A at 24V, this is the part that makes it work without frying your board
| brand | JAYCAR |
| category | ELECTRONICS & COMPONENTS |
| subcategory | TOOLS & SOLDERING |
| mosfet | IRF520N |
| output_voltage | 24V |
| output_current | 5A |
| input_connector | 3 pin header |
| output_connector | Screw terminals |
| rrp | 16.82 |