The datasheet for this connector only shows it rated for 3 amps.
12v 40w heater cartridge.
9 99 these are standard heaters cartridges used in most 3d printers.
40w temperature is can take up to 280 c resistance range 3 4 3 8oms standard resistance 3 6oms watts range 37 42w standard watts 40w.
In a 12 volt printer that means that under max load the heater would have a current of 3 33 amps watts amps volts 40w 12v 3 3333a.
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These heater cartridges are rated for 40w.
Amazon s choice for 12v heater cartridge price.
Winsinn removable 12v 40w heater cartridge 620 ceramic hotend works with creality ender 3 5 cr10 cr 10 cr10 anet a8 3d printer pack of 5pcs.
Looking up the specs of the jst connector used it appears to be a smr 02v b or similar.
304 stainless steel voltage.
These come in 12v and 24v versions.
Specifications of cartridge heater.
Genuine e3d heater cartridge 12v 40w e heater 12v 40w by e3d.
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These are 40w versions and fit most 3d printers.