MK8 Aluminum Heat Block Kit with NTC 100K Sensor, 12V 40W Heater
Part number: NTC100K3D Printer & CNC Parts
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Prices updated: 14 Oct 2026
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About this product
Aluminum heat block kit for MK8-style 3D printer hotends, with a 12V 40W heater cartridge (6mm diameter, 20mm length) and an NTC 100K thermistor. Its operating range is -40°C to +260°C, and the heater and thermistor cables are 1 m long.
Specifications
- Heater voltage
- 12V
- Heater power
- 40W
- Cartridge diameter
- 6 mm
- Cartridge length
- 20 mm
- Thermistor
- NTC 100K
- Operating temperature
- -40 °C to 260 °C
- Cable length
- 1 m
Frequently asked questions
Which thermistor type should I set in my firmware?
Select the 100K NTC thermistor type in your printer firmware so temperature readings are accurate. Incorrect selection causes wrong temperature values.
What voltage should I use for the heater?
The heater is rated 12V at 40W. Use a 12V supply that matches this rating and drive it through a suitable MOSFET module from your control board.
