FatBoy Sparky Switch is Anti-Spark switch for high current loads. It uses SOT-227 Mosfet in High-Side load switching setup instead of traditional Low-Side switches which means on this switch positive wire is switched. The Sparky Switch comes with a CNC machined aluminium block to increase thermal capacity for high load application.
Features:
Press to turn on / hold to turn off
Momentary push button support
LED output for power state (requires external resistor calculated for specific LED/input voltage values)
CNC machined aluminium block to increase thermal capacity (for high loads it needs to be cooled/attached to bigger radiator)
Screw terminals for high current ring connectors or busbars
Specifications:
Input Voltage
25V - 60V (6S - 14S)
Current rating
Up to 300A (requires external cooling)
Dimensions
100 mm x 40 mm x 26 (with screws) 22 (without screws) mm
Without this aluminum or with it? If with it for normal esk8 loads impulses of high current for less than minute should be sufficient. If you going to run constant for longer than minutes you will need external cooling
This is kind of a basic spec, especially since your product is designed to address weaknesses in existing designs.
Do you think you can give a number for current it can handle continuously without supplemental cooling? Pessimistic is fine to cover all reasonable conditions (unventilated enclosure, summer, climbing hills on pneumatics)?
And ideally what “real world” vesc battery amps (total if multi motor) you expect it to handle?
Thanks for making this thing. I wish I caught this before putting in the PCB order lol.
With screws on top its 26mm it looks big but it isn’t
@FredrikHems with heatsink its warm on 50A but not that warm as without it and it stays warm for I don’t know up to 150A then without additional mass or active cooling temperature rise pretty quickly
awesome
